课时跟踪检测37(虚拟语气)
Ⅰ.单项填空
1．—Tom, it is high time you ________ preparing for the final exam. There are only two weeks left.
—Thank you for reminding me.
A. start
B. will start
C. would start
D. started
答案与解析：D考查虚拟语气。it is high time后面的从句要用虚拟语气，谓语动词用过去式。句意：——Tom，你该为期末考试做准备了，只剩下两周的时间了。——谢谢你提醒我。
2．—Did you attend the meeting?
—I ________ the news now if I ________ it.
A．would have known; had attended
B．would know; attend
C．would know; had attended
D．would have known; attended
答案与解析：C句意：——你参加会议了吗？——要是我参加了的话，我现在就会知道那个消息了。本题是错综虚拟条件句。第一句的did暗示了下文的时间是过去时，对过去的虚拟应用if I had done something；答语中的主句是对现在情况的虚拟，故用would know。
3．Frankly, I'd rather you ________ anything about it for the time being. The boss is very angry.
A．hadn't done B．don't do
C．didn't do D．won't do
答案与解析：C句意：说实话，我宁愿你现在什么都不做，老板现在很生气。would rather后的宾语从句中要用虚拟语气，用一般现在时表示与现在或将来事实相反，用过去完成时表示与过去事实相反。根据语境，此处表示与现在事实相反，故用一般过去时。
4．Now everybody. It's high time we ________ to work.
A．start B．would start
C．started D．had started
答案与解析：C句意：好了，现在是我们大家开始工作的时候了。在It's (high/about)
time之后的从句中要用虚拟语气，谓语动词用过去式或should do，故选C项。
5．How I wish I ________ to learn Japanese when I was ten.
A．would begin B．began
C．should begin D．had begun
答案与解析：D句意：我多么希望我在10岁时就开始学日语了。在wish后的宾语从句中，表示与过去事实相反的情况用过去完成时。
6．My mother stared at me as if she ________ me before.
A．didn't see B．hasn't seen
C．hadn't seen D．doesn't see
答案与解析：C句意：母亲看着我，好像以前没见过我似的。根据主句的时态判断，as if后的状语从句中描述的是与过去事实相反的假设，故用过去完成时。
7．If you ________ another ten minutes, you would have witnessed the event.
A．had waited B．would had waited
C．have waited D．would wait
答案与解析：A句意：如果你再等10分钟，你就会目睹那个重大事件了。从would have witnessed可以看出从句是与过去情况相反的假设，所以用过去完成时，故选A项。
8．He made a suggestion that the English test ________ until next Wednesday.
A．will be put off B．be put off
C．will put off D．put off
答案与解析：B句意：他提出建议，英语考试应该推迟到下周三。suggestion后的同位语从句常用“should＋动词原形”结构，should可以省略；test与put off是被动关系，故用被动语态。
9．But for your timely help, the boy ________ his life.
A．must have lost B．may lose
C．might have lost D．should lose
答案与解析：C句意：如果不是你的及时帮助，那个男孩可能会丧命。but for表示的是一个虚拟条件，句子表示与过去事实相反的假设，故用might have lost。must have done只表示推测。
10．I was very busy that day. Otherwise I ________ in the discussion.
A．would take part B．had taken part
C．took part D．would have taken part
答案与解析：D句意：我那天很忙，要不然我就会参加那天的讨论了。otherwise引导的是含蓄虚拟语气条件句，表示与过去事实相反的情况，主句谓语动词用would have done的形式。
11．He has always insisted that he ________ Dr. Turner instead of Mr. Turner.
A．will be called B．call
C．have been called D．should be called
答案与解析：D句意：他一直坚持被叫做特纳博士，而不是特纳先生。insist意为“坚持要……”时，从句中应用“(should＋)动词原形”；he与call是被动关系，应用被动语态。
12．The requirement is that every student ________ one or two books.
A．donate B．donates
C．donated D．will donate
答案与解析：A句意：要求每一个学生捐一到两本书。requirement作主语，表语从句中动词用“should＋动词
原形”形式，should可省略。
13．My sister eats too much every day, or she ________ thinner.
A．will be B．is
C．would be D．had been
答案与解析：C句意：我妹妹每天吃的太多了，要不然她会瘦点的。or暗含一种虚拟条件，其后的句子表示与现在相反的情况，故选C。
14．If only I ________ the news yesterday! I had wanted to call on her.
A．had known B．have known
C．knew D．know
答案与解析：A句意：要是我昨天知道这个消息就好了，我本来想去拜访她的。if only 引导的从句中要用虚拟语气，谓语动词用过去完成时表示与过去事实相反，故选A项。
15．—How I wish I had studied harder when I was in senior school!
—If you had, you ________ a university student now.
A．are B．would be
C．should D．were
答案与解析：B句意：——我多么希望在高中的时候学习能再努力点啊！——如果你努力点学习，现在你就是一个大学生了。本题中从句是对过去的虚拟，主句中有时间状语now，是对现在的虚拟，所以用“would＋动词原形”的形式。
Ⅱ.完形填空
I had arrived at the airport about 30 minutes before the check-in. It had been very __16__ three days for me with lots of meetings. So I was glad to have the
__17__ time to make a note of what I __18__ to do the following day. But then came the __19__ that my flight had to be __20__ because there was a problem with the plane.
As I sat waiting for my __21__ to be called, I reflected on my last meeting of the
day. It was not a business meeting but rather a very enjoyable __22__ with an old business friend I had not seen for over 12 years. Our lunch was spent recalling time gone by __23__ filling each other in on what had happened in our lives over the last 12 years. We both laughed and smiled as we recalled the good times and the great experiences we had __24__ together. At the end of our time together, we both said how much we had __25__ it and that we must do it again.
It was great to have this additional time to replay in my __26__ all that we had talked about. I realized how important it was to have regular __27__ of the good times in our life. I was lucky enough to have had the chance to take a short __28__ and reflect on the good things that had happened in my life over the last 12 years.
It was somewhat like looking at an old photo album __29__ in a cupboard in your house. There before your eyes are lots of wonderful __30__ that take you back to times and places, and most importantly to those people who are in the __31__.
My flight home was finally __32__ three hours later. I smiled as I __33__ the plane and realized that I was not at all __34__ about the delay in the flight, as I had been able to spend the time __35__ on the good times from days gone by.
16．A.important B．busy
C．convenient D．useful
17．A.pleasant B．satisfying
C．happy D．extra
18．A.had B．failed
C．needed D．managed
19．A.announcement B．declaration
C．opening D．speech
20．A.waited B．cancelled
C．taken D．delayed
21．A.flight B．turn
C．name D．order
22．A.negotiation B．lunch
C．party D．discussion
23．A.as well B．except for
C．as well as D．in addition
24．A.spent B．met
C．managed D．shared
25．A.got B．enjoyed
C．made D．paid
26．A.thought B．spirit
C．flight D．mind
27．A.time B．plans
C．reminders D．remainder
28．A.way B．cut
C．method D．break
29．A.stored away B．put on
C．set aside D．given out
30．A.celebrations B．memories
C．awards D．presents
31．A.cupboard B．books
C．childhood D．photos
32．A.shouted B．phoned
C．called D．commanded
33．A.left B．boarded
C．jumped D．reached
34．A.upset B．happy
C．crazy D．surprised
35．A.taking B．seizing
C．reflecting D．bringing
答案与解析：
文章通过叙述“我”在等待飞机的时候对往事的回忆，告诉我们要经常停留下来，回顾生活中的美好事情。
16．B由下文“with lots of meetings”可知，答案为B项，这里指很“繁忙的(busy)”三天，而不是important“重要的”，useful“有用的”，convenient“方便的”三天。
17．D依据上文“about 30 minutes before the check-in”可判断，此处指“我”有额外的时间来做别的事，因此答案为D项。
18．C结合上文语境可知，此处指“我”很乐意有额外的时间来计划第二天“需要(needed)”做的事，所以答案为C项。have to do sth.“不得不做某事”；fail to do sth.“未能做某事”；manage to do sth.“设法做成某事”，均不符合语境。
19．A依据语境可知，这里应指机场发布了一项通知，因此答案为A项。
20．D从下文可知，航班是被延误了(delayed)，所以答案为D项。cancel“取消”，不符合文意。
21．A飞机出了故障，“我”当然是等待“航班(flight)”，因此答案为A项。
22．B由下文“Our lunch”可知，答案为B项，lunch“午餐”。negotiation“谈判”；party“聚会”；discussion“讨论”，均不符合文意。
23．C此处用as well as连接recalling和filling两个动名词短语。
24．D spend, meet, manage都不能与先行词times和experiences很好地搭配，因此答案为D，share“分享，共有”。
25．B由“we must do it again”可知，我们很满意那天的聚餐，因此答案为B项。
26．D句意：有这样额外的时间来回想我们的谈话实在是太好了。回想应是在大脑中，因此答案为mind。thought“思想”；spirit“精神”；flight“航班”，均不符合语境。
27．C这里说的是“我”的感受：“我”认识到定期回顾生命中的快乐时光是多么重要啊。reminder“引起回忆的事物”；time“时间”；plan“计划”；remainder“剩余物”，依据句意可知，答案为C项。
28．D由下文“reflect on the good things”可知，这里表示“我”有机会来短暂地放松，因此答案为D项，take a short break“短暂地休息”。
29．A句意：这就有点像是在看贮藏在家里橱柜里的老相册一样。store away“贮藏”；put on“穿上”；set aside“留出”；give out“分发”。依据句意可知，答案为A项。
30．B既然“take you back to times and places”，那么应是“许多精彩的回忆”，因此答案为B项。celebration“庆祝”；award“奖品”；present“礼物”，均不符合语境。
31．D上文已经提到“an old photo album”，因此答案为D项。
32．C由上文“As I sat waiting for my __21__ to be called”可知，此处答案应为C 项。
33．B board the plane“登机”，答案为B项。
34．A由“I smiled”可知，此时“我”的心情是很愉快的，所以对飞机的晚点并不“心烦(upset)”，故答案为A项。
35．C由上文“reflected on my last meeting of the day”与“reflect on the good things”可知，答案为C项，reflect on“认真思考”。take on“呈现”；seize on“抓住(可利用的事物)”；bring on“导致，促使生长”，均不符合语境。
Ⅲ.阅读理解
More surprising, perhaps, than the present difficulties of traditional marriage is the fact that marriage itself is alive and thriving. As Skolnick notes, Americans are a marrying people: relative to Europeans, more of us marry and we marry at a younger age. Moreover, after a drop in the early 1915s, the rate of marriage in the United States is now increasing. Even the divorce rate needs to be taken in this remarriage context: some 30 percent of divorced individuals remarry. Thus, marriage remains by far the preferred way of life for the vast majority of people in
our society.
What has changed more than marriage is the nuclear family. Twenty five years ago, the typical American family was made up of a husband, a wife, and two or three children. Now, there are many marriages in which couples have decided not to have any children. And there are many marriages where at least some of the children are from the wife's former marriage, or the husband's, or both. Sometimes these children spend all of their time with one parent from the former marriage; sometimes they are shared between the two former spouses (配偶)．
Thus, one can find every type of family arrangement. There are marriages without children; marriages with children from only the present marriage; marriages with “full-time” children from both the p resent and former marriages; marriages with “full-time” children from the present marriage and “part-time” children from former marriages. There are stepfathers, stepmothers, half brothers, and half sisters. It is not all that unusual for a child to have four parents and eight grandparents! These are great changes from the traditional nuclear family. But even so, even in the midst of all this, there remains one constant：Most Americans spend most of their adult lives married.
36. By calling American a marrying people the author means that________.
A. Americans are more traditional than Europeans
B．Americans expect more out of marriage than Europeans
C. there are more married couples in U. S. A. than in Europe
D．more of Americans, compared with Europeans, prefer marriage and they accept it at a younger age
37. Which of the following can be presented as the picture of today's American families?
A. Many types of family arrangements have become socially acceptable.
B. A typical American family is made up of only a husband and a wife.
C. Americans prefer to have more kids than before.
D. There are no nuclear families any more.
38. “Part-time” children________.
A. spend some of their time with their half brothers and some of their time with their half sisters
B. spend all of their time with one parent from the previous marriage
C. are shared between the two former spouses
D. cannot stay with “full-time” children
39. Even though great changes have taken place in the structure of American families，________.
A. the vast majority of Americans still have faith in marriage
B. the functions of marriage remain unchanged
C. most Americans prefer a second marriage
D. most divorced Americans would rather not remarry
答案与解析：
36．D根据第一段第二句“As Skolnick notes, Americans are a marr ying people: relative to Europeans, more of us marry and we marry at a younger age.”可知D项为正确答案。
37．A美国社会接受多种类型的家庭组合方式。文章第二、三段指出，目前美国家庭的组合方式与传统的核心家庭相比发生了很大的变化。这种变化反映在孩子与家庭成员的关系上。分析四个选项，B、D项与事实不符；家庭结构的变化不能说明传统的核心家庭不存在了，因此D项的观点太片面。
38．C“part-time children”是指父母离婚后由父母交替抚养的孩子。第二段最后一句指出了离婚家庭的两种孩子，即“part-time children”和“full-time children”。根据第三段的描述，“full-time children”是指夫妻双方目前的孩子，或目前与现父母住在一起的前婚的孩子；“part-time children”则是由离婚父母交替抚养的孩子。由此判断C项是正确的；
A、D项不对；B项所说的是“full-time children”。
39．A第一段最后一句和第三段最后一句为本文的主题句，即大多数美国人喜欢过婚姻生活，而且正在过着婚姻生活，这是不变的事实。由此看出，美国人对婚姻是有信心的。本文没有涉及B项和C项的观点。D项不符合文意。
课时跟踪检测(六十七) 离散型随机变量及其分布列 (分A 、B 卷，共2页) A 卷：夯基保分 一、选择题 1．设某项试验的成功率是失败率的2倍，用随机变量X 去描述1次试验的成功次数，则P (X ＝0)等于( ) A ．0 2．(2015·长沙模拟)一只袋内装有m 个白球，n －m 个黑球，连续不放回地从袋中取球，直到取出黑球为止，设此时取出了X 个白球，下列概率等于?n －m ?A 2 m A 3 n 的是( ) A ．P (X ＝3) B ．P (X ≥2) C ．P (X ≤3) D ．P (X ＝2) 3．设X 是一个离散型随机变量，其分布列为： 则q 的值为( ) A ．1 ± 336 －336 ＋ 336 4．随机变量X 的概率分布规律为P (X ＝n )＝a n ?n ＋1? (n ＝1,2,3，4)，其中a 是常数， 则P ? ????1 2 ＜X ＜52的值为( ) 5．(2015·厦门质检)设随机变量X 的分布列为P (X ＝k )＝m ? ?? ??23k (k ＝1,2,3)，则m 的值 为( ) 6．若随机变量X 的分布列为
则当P(X＜a)＝时，实数a的取值范围是( ) A．(－∞，2] B．[1,2] C．(1,2] D．(1,2) 二、填空题 7．若P(X≤x2)＝1－β，P(X≥x1)＝1－α，其中x1 Unit 5 Languages Around the World Period One 1.Chinese c__________ are made out of simple basic strokes. 2. C is the art of producing beautiful handwriting using a brush. 3. Like China, the USA is a large country in which many different d are spoken. 4. The rose is regarded as a s of love in both China and some Western countries. 5. Carbon dioxide(CO?) is one of the main (因素) in global warming which is negatively affecting everyone. II.Blank filling.（在空白处填入适当的内容（1个单词）或括号内单词的正确形式。） 1.Diligence is the means which one makes up for one's dullness(迟钝). 2. Health problems _________ (connect) with bad eating habits and a lack of exercise. 3. There are various reasons people choose to learn a foreign language 4. In the last few years the city of Bozhou has spread out rapidly in all (direction). 5. the growing heat these workers are still all in top hats and heavy uniforms. 6. They enjoy participating in a wide ________(various) of activities, both locally and further afield. 7. To meet the needs of _________ unified country, the First Qin Emperor took a series of measures. 8. We think that peace is not only a distant goal we seek, it is a means by which we arrive at that goal. 9. Today, Spanish is the world’s fourth most commonly(speak) language, after Chinese, English and Hindi. 10. Changing the attitude _____ learning foreign languages may be a hard task but the government decides to try! 1. I live in the place which the medicine capital city Bozhou. 2. students are registering for extra-curricular activities. 3. Every means has been tried, but we find only _______________ can we learn English well. 4. Chinese is an old language, and its earliest characters nearly four thousand years ago. 5. Because of his broken English, he couldn’t make himself understood, which the embarrassment. 6. The designer, with whom I have been working since 1999, shaping my views of the work. 7. There are extra-curricular activities including sports, painting, dancing and playing music as well. 8. It is what parents say and do in family life, which may have a life-long effect on their children. 9. In southern China,bats the door, because they are symbols of luck, health, wealth and happiness. 10. The school year two semesters, the first of which is September through December, the second January through May. IV. Cloze. （在空白处填入适当的内容（1个单词）或括号内单词的正确形式。） Nobody wants to be aged, but____1____it comes to visiting cities, most of us want to visit the world's oldest cities. Luoyang is one of the oldest and most ____2____(attract) cities in the world that I'd like to recommend to you. Luoyang stands out ____3____the oldest continually inhabited (持续居住的) city in Asia. The city is considered to be ____4____birthplace of Chinese culture and history as well as being one of the Seven Ancient Capitals of China. There ____5____ (be) no other city in China that has seen so many____6____(dynasty) like Luoyang. With such a long and exciting history, Luoyang has really a lot ____7____ (offer). The longmen Grottoes(龙门石窟), which ____8____(include) in the world Heritage List (世界遗产名录)since 2000, and many historic Buddhist temples constantly attract tourists from all over the world. Luoyang is also famous 9 the White Horse Temple, the earliest Buddhist temple ____10____(build) in China. Are you anxious to visit the city? V. Reading Comprehension 2017年高考英语模拟试题 A Assistant Professor, Musical Theatre Dance Wichita State University seeks a full-time, 9-month assistant professor, beginning in August. Applicants are required to have a degree in dance area, teaching experience at a professional or college level, ability to direct and teach stage movement. The salary depends on qualifications and experience. For complete information visit https://www.doczj.com/doc/1610047437.html,. Full Professor in Theatre and Dance The Department of Theatre & Dance at the University of California at San Diego (https://www.doczj.com/doc/1610047437.html,) is seeking an experienced theatre artist in lighting design. Applicants must work for us for at least one year. Significant professional experience is required. This position is expected to teach at both graduate and undergraduate levels. A review of applications will start on June 1st. Application deadline: September 1st. Technical Director in Performing and Fine Arts DeSales University’s Performing and Fine Arts Department seeks a highly skilled, professional technical director. The position is a 10-month staff position with the possibility of summer employment with the Pennsylvania Shakespeare Festival. Professional experience is required; MFA is preferred. Please email materials to john.bell@https://www.doczj.com/doc/1610047437.html,. Screening of applications begins immediately and will continue until the position is filled. Assistant Director— Media Resources Center Maryland Institute College of Art is seeking an Assistant Director of Media Resources Center in the Academic Affairs Division. Qualifications for the position include a degree in Art History or related fields with knowledge of art and design history, library experience, excellent interpersonal and communication skills and familiarity with photoshop and scanning. A review of applications will begin immediately; job announcements will remain open until the position is filled. Applicants are required to work for us at least 11 months. They can send emails to jobs@https://www.doczj.com/doc/1610047437.html,. The salary differs depending on your experience. Please include your desired salary in your application letter. 25. If an applicant has 9.5-month free time, he or she can pay close attention to the ad of ____. A. Full Professor in Theatre and Dance B. Assistant Professor, Musical Theatre Dance C. Technical Director in Performing and Fine Arts 课时跟踪检测（二十八）交通运输方式和布局 一、选择题 甲、乙两城市间的直线距离为590 km，连接甲、乙两城有三条交通线路。图a为甲、乙两城三条交通线沿线海拔随距离变化图，图b为影响交通运价的因素及关联图。据此完成1～3 题。 1．线路M、N、P对应的交通运输方式最可能的是( ) A．公路、高铁、高速公路 B．公路、航空、河运 C．高铁、高速公路、省道 D．航空、高铁、村村通 2．线路M沿线海拔变化最小，距离最短，下列关于线路M所对应的运输方式的说法最恰当的是( ) A．运价最低B．沿线多桥梁和隧道 C．沿线停靠站点最多 D．终点在乙城外32 km 3．结合图b中的四图，下列说法符合Ⅰ、Ⅱ、Ⅲ、Ⅳ特点的是( ) A．看Ⅰ图，运距、重量和运输方式相同，棉花的运价大于铁锭 B．看Ⅱ图，线路P上的运价大于线路M C．看Ⅲ图，重量相同的活鱼和杏仁运价相等 D．看Ⅳ图，其他条件相同，黄金单位重量运费小于铁锭 解析：1.C 2.B 3.A 第1题，读图可知，线路M长度距离最短，为622 km，但大于两地的直线距离，且海拔基本没有变化；线路N长度为651 km，海拔变化很小；即线路M、N具有距离近、线路平直的特点，说明级别较高，而且沿线海拔较低不可能是航空，有可能是高铁、高速公路。线路P长度为899 km，距离较长且沿线海拔变化大，有可能是省道。第2题，首先，依据上题确定，线路M为高铁。高铁的运费高；沿线站点最少；速度较快， 为了保证安全性，高铁线路一般较为平直，桥梁、隧道较多；终点距乙城距离从图中读不出来，高铁线路长度不可能等于两城市站点之间的直线距离。第3题，据Ⅰ图，在其他条件相同的条件下，棉花的密度小于铁锭，故运费贵；据Ⅱ图，运距越长，运价越高，但P为省道，运费低，M为高铁，运费高；据Ⅲ图，活鱼在水中才可以存活，需要运输的重量更大，故运费更贵；据Ⅳ图，其他条件相同，黄金价格高，运费高于铁锭。 被誉为“天路”的青藏铁路已成功运营十多年。现今它如同一棵参天大树，正将更多的“枝叶”伸向广袤的雪域大地。其中，川藏铁路于2014年动工修建，计划在2025年全线建成通车，预估算投资超过2 000亿元。下图是青藏铁路旅客和货物周转量图。据此完成4～6题。 4．上图可以反映出( ) A．旅客和货物周转量均保持逐年增长 B．旅客周转量2014年增长最快 C．货物周转增长幅度超过旅客周转增长幅度 D．旅客周转总量超过货物周转总量 5．修建川藏铁路的意义为( ) ①重构了我国中西部区域发展格局 ②打造了西藏连接长三角、珠三角的便捷通道 ③使西藏成为连接东亚和南亚的“枢纽” ④与青藏铁路相比成本更高 A．①②③ B．②③④ C．①②④ D．①③④ 6．川藏铁路被称为“最难建设的铁路”，目前川藏铁路建设的最大制约因素是( ) A．高寒 B．冻土 C．成本 D．缺氧 解析：4.C 5.A 6.C 第4题，结合图示可明显看出，旅客和货物周转并非逐年增长；旅客周转量2007年增长最快。货物周转增长幅度超过旅客周转增长幅度。旅客周转总量与货物周转总量不具有可比性。第5题，成本不属于交通运输的意义。第6题，因为“青藏铁路已成功运营十多年”，意味着其当年所面临的高寒、缺氧、冻土等问题均已得到成功解决。由题中“预估算投资超过2 000亿元”可知，目前川藏铁路建设的最大制约因素是成本。 课时跟踪检测二十七难溶电解质的溶解平衡 (时间：45分钟满分：100分) 一、选择题(每小题6分，共60分) 1．下列对沉淀溶解平衡的描述正确的是( ) A．反应开始时，溶液中各离子浓度相等 B．沉淀溶解达到平衡时，生成沉淀的速率和沉淀溶解的速率相等 C．沉淀溶解达到平衡时，溶液中溶质的离子浓度相等，且保持不变 D．沉淀溶解达到平衡时，如果再加入难溶性的该沉淀物，将促进溶解 解析：沉淀溶解平衡符合一般平衡的特点，反应开始时，各离子的浓度没有必然的关系，A项错误；平衡时，沉淀的生成速率与溶解速率相等，B项正确；平衡时，离子浓度不再变化，但不一定相等，C项错误；沉淀溶解达到平衡时，如果再加入难溶性的该沉淀物，由于固体的浓度为常数，故平衡不移动，D 项错误。 答案：B 2．(2017届保定市高阳中学月考)对饱和AgCl溶液(有AgCl固体存在)进行下列操作后c(Ag＋)减小而K sp(AgCl)均保持不变的是( ) A．加热B．加水稀释 C．滴加少量1 mol/L盐酸D．滴加少量1 mol/L AgNO3溶液 解析：含AgCl饱和溶液中，存在＋(aq)＋Cl－(aq) ΔH>0，加热沉淀溶解平衡正向移动，c(Ag＋)增大，K sp(AgCl)也增大，A项不符合题意；加水稀释，由于饱和AgCl溶液中有AgCl固体存在，加水AgCl固体溶解，该溶液仍为饱和溶液，c(Ag＋)不变，B项不符合题意；滴加少量1 mol/L盐酸，c(Cl －)增大，沉淀溶解平衡逆向移动，c(Ag＋)减小，由于温度不变，K sp(AgCl)保持不变，C项符合题意；滴加少量1 mol/L AgNO3，溶液c(Ag＋)增大，D项不符合题意。 答案：C 3．(2017届玉溪第一中学月考)物质间的反应有时存在竞争反应，几种溶液的反应情况如下： (1)CuSO4＋Na2CO3 主要：Cu2＋＋CO2－3＋H2O―→Cu(OH)2↓＋CO2↑ 次要：Cu2＋＋CO2－3―→CuCO3↓ (2)CuSO4＋Na2S 主要：Cu2＋＋S2－―→CuS↓ 次要：Cu2＋＋S2－＋2H2O―→Cu(OH)2↓＋H2S↑ 下列几种物质的溶解度大小的比较中，正确的是( ) A．Cu(OH)2>CuCO3>CuS B．CuS>Cu(OH)2>CuCO3 C．CuS 高中校本教材新高考·新理念·新教材课时跟踪检测（必修一） Unit 1 Teenage Life Period Two 命题人: 班级：姓名： 1.The school is responsible for the ___________(安全) of all the students. 2. Choosing a suitable _______ (标题)for your passage is of great importance. 3. I hope I can join your company when I g_________ from Peking University. 4. The volunteer work experience is a great way to give back to the ___________(社区). 5. Getting a notebook to help you keep a _________(计划；安排) of the things will stop you putting things off. II.Blank filling.（在空白处填入适当的内容（1个单词）或括号内单词的正确形式。） 1. It’s _________ big challenge for you to complete any personal goal in time. 2. All the students are brave enough to face up to __________ comes up in the future. 3. Whenever I'm facing a __________(difficult), I always tell myself, "Don't ever quit!" 4. The first week was all a bit confusing, _________soon I got used to the new school life. 5. We can try a course for two weeks after we register for it. After that, we cannot change _______. 6. Nowadays, parents take more _________(responsible) for the education of their children than before. 7. Girls used to take fewer _________(advance) math courses than boys but now they are taking just as many. 8. I find it really _______(annoy) when some students say I got good marks in the exams because of being lucky. 9. We _______(high) recommended that students read some materials from the English-speaking countries. 10. I find that looking after children is a __________(challenge) job where you need to be patient and careful. 1.The runner failed to __________________ the others though he tried his best. 2.There was nobody else at hand, so we had to do all this ___________________. 3.We have to ______________________ whatever the future may have in store. 4.We are going to set up a food bank _______________ food to hungry people. 5.We are told to ______________ keeping the room tidy and cleaning the chalkboard. 6. I am going to start my first job, but I what to wear for work. 7. —I have the Oral English Competition. —What a ridiculous idea. You even don’t know how to introduce yourself in English. 8. He used to live in the countryside but now he living in the noisy area. 9. Before we leave here, we need to what to take and what to leave behind. 10.These workers had been in the United States for twenty or more years and therefore English. III. Cloze. （在空白处填入适当的内容（1个单词）或括号内单词的正确形式。） “The secret to getting ahead is getting started.” — Mark Twain S taying active in more ways than one. First of all, don’t be a bystander. Don’t let things pass you by 1 you are there to experience them. Try a new fitness schedule, join a club, find new ways 2 (meet) people, play basketball o r team sports. The second piece of “staying active” has to do 3 taking action—there is a difference between saying you are going to do something 4 actually carrying it out. Mean what you say and say what you mean. Seize 5 (opportunity) when you can. “Am I something? And the answer comes, already am, always was, and I still have time to be.” — Anis Mojgai You live your life in a small community at a small school and you only see a small piece of the world. Then, Suddenly you 6 (throw) into a large community at a large school, where there are thousands of young, insecure, definitely 7 (confuse) freshmen. They are all trying to fit in, 8 if everybody is trying to be someone they are not, no one can see them for who they really are. Don’t feel the need to obey anyone else’s idea of 9 you should be as a freshman. This goes along with being true to yourself, but there is a large amount of freedom that 10 (come) from being confident in who you are. Good habits formed at youth make all the difference. - 1 - 高三英语模拟试题 总分120分，时间100分钟 班级： ______ 姓名： ______ 总分： ______ 第一节:单项填空(共15小题;每小题1分,满分15分) 21. Research found that when people share their efforts and knowledge, the ______ is greater than the total of their efforts as individuals. A. procedure C. ownership D. revenue 22. A lake project, which will be a landmark construction of the city, ______ on land that only one year ago was mostly farmland. A. is built B. was built C. has been built D. is being built A. in which B. to which C. from which D. by which 24. Teachers would like students to think and discuss problems in groups but they don’t tolerate ______ in class. A. they talk B. them to talk C. them talked D. their talking 25. ---What if I cancel my files by accident? --- Our standard advice: before you do anything, ______ your data. A. back up B. polish up C. hold up D. step up 26. ---How was your trip to the mountains? ---Turned out to be ______ relaxing. Though we made it to the top, we caught a sudden storm and got wet to the skin. A. more than B. nothing but C. all too D. anything but A. what it is that B. why it is that C. what is it D. why is it 28. Many believe that whoever makes a great advancement in art or science ______ the same in any other if chance had thrown it in his way. A. would do B. could do C. would have done D. would be doing 29. I have kept the school club poster ______ I can see it every day, as it always reminds me of my first year of 课时跟踪检测(二十八)种群的特征与数量的变化 一、选择题 1．下列关于种群数量变化的叙述中，不．正确的是() A．在理想条件下，种群数量增长可用一定的数学模型表示 B．一个物种引入新的地区后，一定呈“J”型增长 C．对家鼠等有害动物的控制，要尽量降低其K值 D．研究一个呈“S”型增长的种群的增长速率可预测其K值 2．利用人工合成的性引诱剂诱杀害虫的雄性个体，该害虫的种群密度将明显减小，其原因是() A．雄性个体数量减小使雌虫生殖能力下降 B．成虫个体数量大量迁出使幼虫个体数量减少 C．受人工合成的性引诱剂的影响，雌性个体也减少 D．种群的性别比例失调使种群的出生率下降 3．下列有关种群增长的“S”型曲线的叙述，错误的是() A．通常自然界中的种群增长曲线最终呈“S”型 B．达到K值后种群的增长速率也可能为负值 C．种群增长的开始阶段不受自身密度的影响 D．相同的种群K值也可能不同 4．社鼠是主要生活在山地环境中的植食性鼠类。下列有关叙述正确的是() A．社鼠与其天敌黄鼬的种群数量波动是不同步的 B．社鼠的种群数量总是处在环境容纳量之下 C．生活一段时间后，社鼠种群就会从增长型转变为衰退型 D．在食物十分充足的条件下，社鼠的种群数量一定呈“J”型增长 5．(2014·青岛模拟)自然条件下，种群增长曲线呈“S”型。假设种群的K值为200，N表示种群数量，据表分析不．正确的是() A．环境阻力对种群增长的明显影响出现在S4点之后 B．防治蝗虫应在蝗虫数量达到S3点之前进行 C．渔业捕捞后需控制剩余量在S3点 D．(K－N)/K值为0.50 时，种群增长速率最大 6．下列对探究酵母菌种群数量变化规律实验的叙述，正确的是() A．用血球计数板计数酵母菌个数时，取适量培养液直接滴加到计数室内 B．对于压在一个方格界限上的酵母菌的处理方法是计数四条边及其顶角的酵母菌数C．已知血球计数板的方格为2 mm×2 mm，若盖玻片下经稀释10倍的培养液厚度为0.1 mm，计数时观察值为M，则10 mL培养液中酵母菌的总数约为2.5 M×105个 D．与一般的生物实验一样，该探究实验也需要单独设置对照组 7.右图中曲线Ⅰ表示某种群的出生率，曲线Ⅱ表示其死亡 率。则() A．种群在c点之前呈“J”型曲线增长，c点之后呈“S”型曲 线增长 B．种群数量增长最快的时期是a点对应的时期 C．c点时此种群的个体总数达到环境容纳量 D．曲线表明种群数量变化受食物的影响 8.生态学家对某地区两个生物种群(Ⅰ和Ⅱ)的存活 率进行了调查，结果如右图所示。下列关于对种群Ⅰ和 Ⅱ实施重点保护时期的叙述正确的是() A．种群Ⅰ和Ⅱ都为7～10岁 B．种群Ⅰ和Ⅱ都为1～10岁 C．种群Ⅰ为0～1岁，种群Ⅱ为6～7岁 D．种群Ⅰ为1岁以后各年龄期，种群Ⅱ为7岁以后各年龄期 9．(2012·海南高考)某小组用样方法调查草地中某种双子叶植物的种群密度。下列做法错误的是() A．随机取样 B．选择植物生长茂盛处取样 C．根据调查数据估算该种群密度 D．根据地段的形状确定取样方法 10．(2014·深圳模拟)某小组进行“探究培养液中酵母菌种群数量的动态变化”实验时，同样实验条件下分别在4个试管中进行培养(如下图)，均获得了“S”型增长曲线。下列有关该实验的说法错误的是() 课时跟踪检测（二十七）通过神经系统的调节 一、选择题 1．下列关于神经调节的说法正确的是() A．在反射弧完整的情况下，只要给感受器一个刺激，就会引起感受器的兴奋 B．将灵敏电流计的电极均接在一离体神经纤维膜内，在某处给予一有效刺激，电流计一定会发生两次方向相反的偏转 C．将一离体神经纤维置于较高浓度的NaCl溶液中，对测定的静息电位影响不大 D．在反射弧某一部位给以适当刺激，效应器产生相应的反应，说明发生了反射 解析：选C给感受器一个适宜刺激、且达到一定的刺激量，才会引起感受器的兴奋，A错误；将灵敏电流计的电极均接在一离体神经纤维膜内，若给予的一有效刺激部位位于灵敏电流计的两电极之间、且距离两电极相等，则产生的兴奋同时到达电流计的两极，灵敏电流计不会发生偏转，B错误；静息电位产生的机理是K＋外流，因此将一离体神经纤维置于较高浓度的NaCl溶液中，对测定的静息电位影响不大，C正确；在反射弧某一部位给以适当刺激，效应器产生相应的反应，若没有经过完整的反射弧，则没有发生反射，D错误。 2．(2019·潍坊期末)下列有关神经调节的叙述，正确的是() A．反射是机体神经调节的结构基础 B．机体受刺激后产生神经冲动与胞外Na＋内流有关 C．神经递质与突触后膜上的受体结合，一定引起突触后神经元兴奋 D．神经系统可支配某些内分泌腺的分泌，故神经系统的发育和功能不受激素的影响解析：选B反射弧是机体神经调节的结构基础，A错误；胞外Na＋内流产生了动作电位，B正确；神经递质与突触后膜上的受体结合，引起突触后神经元兴奋或抑制，C错误；神经系统的发育和功能受激素的影响，D错误。 3．(2019·济南重点中学联考)下列关于神经调节的说法错误的是() A．静息状态下，神经纤维膜外带正电、膜内带负电 B．神经纤维受到一定强度的刺激后，细胞膜对Na＋的通透性增加，Na＋内流 C．反射过程中，突触小体内会发生电信号→化学信号→电信号的转变 D．只有保持完整的反射弧结构才能完成反射活动 解析：选C静息电位表现为外正内负，A正确；神经纤维受到一定强度的刺激后，细胞膜对Na＋的通透性增加，Na＋内流，产生动作电位，B正确；反射过程中，突触小体内会发生电信号→化学信号的转变，C错误；反射的结构基础是反射弧，只有反射弧完整，反射 高中英语学习材料 madeofjingetieji 课时跟踪检测（一） Warming Up & Reading — Language Points Ⅰ.单句语法填空 1．It was in prison that he set down the story. 2．After going through the woods, you’ll find a hospital. 3．The house fell down before she was able to save her little daughter. 4．She joined an English club in order to improve her English. 5．The couple told us it was the fourth time that they had_visited (visit) the West Lake. 6．Before eating, please add some salt to the dish. 7．As far as I’m concerned (concern), it is not a good idea to go camping tonight. 8.While swimming (swim) in the river, we saw a fish jump out of the river. 9．It is no good staying up too late every day. Ⅱ.完成句子 1.He was_very_upset_about_the_fact (为此事很难过) that they couldn’t go to the beach. 2．The teacher made every effort to calm_his_student_down (使他的学生冷静下来) after the exam. 3．I got up early in_order/so_as_not_to_be_late_for_school (为了上学不迟到)． 4．The police went_through_our_luggage (检查了我们的行李) before we got on the plane. 5．A_series_of_wet_days (一连串的雨天) drove me crazy. 6．The time I spend on reading every day adds_up_to_two_hours (合计两个小时)．7．I won’t go there unless_(I_am)_invited (除非受到邀请)． 8．He treated me so badly that I couldn’t_stand_it_any_longer (不能再忍受了)． Ⅲ.阅读理解 A Dear Mr Black， I used to have a really good group of friends. Now they’re all getting into smoking and drinking. I want to find a new group of friends, but I’m shy. How can I know who are the types of people I should make friends with, and who will accept me? Yours， Mike新人教版必修一 Unit5 Period 1课时跟踪检测
2017年高考英语模拟试题 (4)
2020版高考地理课时跟踪检测二十八交通运输方式和布局含解析
2018年高考化学总复习课时跟踪检测二十七难溶电解质的溶解平衡
新人教版必修一 Unit1 Period 2课时跟踪检测
高三英语模拟试题精选
高中生物：课时跟踪检测(二十八) 种群的特征与数量的变化
2020创新方案高考生物一轮复习 课时跟踪检测(二十七) 通过神经系统的调节
人教版高中英语必修一课时跟踪检测(一)
相关主题
文本预览