三类从句易错题
三大类从句易错题
1. All of the flowers now raised here have developed from those _______ in the forest.
A. once they grew
B. they grew once
C. they once grew
D. once grew
2. In the office I never seem to have time until after 5:30 pm, _____ many people have gone home.
A. that
B. which
C. whose time
D. by which time
3. Is this the reason _______ at the meeting for his carelessness in his work?
A. he explained
B. what he explained
C. how he explained
D. why he explained
4. Luckily, we’d brought a road map without ______ we would have lost our way.
A. it
B. tha t
C. this
D. which
5. When he was working there he caught a serious illness from _____ efforts he still suffers.
A. which
B. that
C. whose
D. what
6. It’s said that he’s looking for a new job, one ______ he can get more money to support his family.
A. when
B. where
C. that
D. which
7. We are living in an age ______ many things are done on computer. A. which B. that C. whose D. when
8. The old building, behind _______ was a famous church, was _______ we used to work.
A. that, the place
B. it, the place
C. which, where
D. what, where
9. You could see the runners very well from ______ we stood. A. which B. where C. that D. when
10. Recently I bought an ancient Chinese vase, _______ was very reasonable.
A. which price
B. the price of which
C. its price
D. the price of whose
11. What have you got _____ will help a cold? A. what B. that C. it D. who
12. He was very angry and I can still remember the way _____ he spoke to me.
A. how
B. that
C. what
D. which
13. I can think of many cases _______ students obviously knew a lot of English words and expressions but couldn’t write a good essay.
A. why
B. which
C. as
D. where
14. He’s got himself into a dangerous situation _____ he is likely to lose control over the plane.
A. where
B. which
C. while
D. why
15. He made another wonderful discovery, ______ of great importance to science.
A. which I think is
B. which I think it is
C. which I think it
D. I think is
16. Dorothy was always speaking highly of her role in the play, ____, of course, made the others unhappy.
A. who
B. which
C. this
D. what
17. Their problem today is somewhat similar to _____ they faced many years ago.
A. that
B. which
C. that which
D. it
18. When they went into the shop and asked to look at the engagement rings, the girl brought out a cheaper one, _______ she had arranged with James.
A. the which was what
B. what was that
C. which was what
D. that was that
19. The president stood by a window inside the room, ____, looking over the square.
A、where I entered
B、into which I entered
C、which I entered
D、that I entered
20. A terrible earthquake happened in that district at the end of 2004, ____ many countries in the world paid close attention to this. A、where B、when C、which D、what
21. Such people ______ knew Tom thought he was something of a musician.
A. who
B. that
C. as
D. whom
22. I shall never forget the years _____ I lived in the country with the farmers _______ has a great effect on my life. A. when; who B. when; that C. when; for which D. that; who
23. Country life gives him peace and quiet, which is ______ he can’t enjoy while living in big cities.
A. that
B. why
C. where
D. what
24. I had neither a raincoat nor an umbrella. _____ I got wet through.
A. It’s the reason
B. That’s why
C. There’s why
D. That’s because
25. --- I prefer shutting myself and listening to music all day on Sundays.
--- That’s _____ I don’t agree. You should have a more active life.
A. where
B. how
C. when
D. what
26. One reason for her preference for city life is _____ she can have easy access to places like shops and restaurants. A. that B. how C. what D. why
27. Believe it or not, I’m sure that is _____ people call the six sense. A. when B. what C. which D. why
28. My consideration is ____ the financial crisis in the USA will heavily influence China.
A. which
B. if
C. what
D. why
29. Is this museum ______ the students visited last year? A. that B. which C. where D. what
30.--- May I go and play with Dick this afternoon, Mom?
--- No, you can’t go out _____ your work is being done. A. before B. until C. as D. the moment 31. ---I’m going to the post office.
---______ you’re here, can you get some stamps? A. As B. While C. Because D. If
32. The visitor asked to have his picture taken ______ stood the famous tower.
A. that
B. at which
C. when
D. where
33. They kept trying _______ they must have known it was hopeless. A. if B. because C. when D. where
34. _________ your composition carefully, some spelling mistakes can be avoided.
A. Having checked
B. Check
C. If you check
D. To check
35. ---Shall Mary come and play computer games?
---No, ______ she has finished her homework. A. when B. since C. unless D. as soon as 36. ---When did he leave the classroom?
---He left _____ you turned back to write on the blackboard.
A. the time
B. the moment
C. until
D. since
37. _________ I suggest, he always disagrees. A. However B. Whatever C. Whichever D. Whoever
38. ________ you’ve got a chance, you might as well make full use of it.
A. Now that
B. After
C. Although
D. As soon as
39. How long do you suppose it is _______ he arrived there? A. when B. before C. after D. since
40. ---Did Jack come back early last night?
---Yes. It was not 8 o’clock _____ he arrived home. A. before B. that C. when D. until
41. Too high house prices can be brought under control, ______ the authorities introduce a series of regulatory policies. A. even if B. as if C. so that D. provided that
42. We thought there were 35 students in the dinning hall, ______, in fact , there were 40.
A. while
B. whether
C. what
D. which
43. Aunt Li takes good care of the children _____ they were her children.
A. even if
B. as though
C. because of
D. even though
44. The little girl who got lost decided to remain ______ she was and wait for her mother.
A. where
B. what
C. how
D. who
45. There were so me chairs left over ______ everyone had sat down. A. when B. until C. that D. where
46. ________ he seems to know everything.
A. Young as he is, yet
B. Young as he is,
C. As he is young, but
D. Though he is young, but
47. It was ______ my father worked _____ I work now.
A. where; that
B. wherever; where
C. that; where
D. there; where
48. ---Do you think we can get there on time?
---Yes, ________ the car doesn’t break down. A. even if B. unless C. until D. so long as
49. The storeroom, although ______ to be locked, was often left open.
A. was supposed
B. was supposing
C. supposed
D. supposing
50. ---Will you go to attend her birthday party?
---No, _______ invited to. A. if B. until C. when D. even though
51 .It is generally considered unwise to give a child __________ her or she wants.
A. whatever
B. no matter what
C. whenever
D. no matter when
52 . She promised _________ he had enough money she would marry him.
A. that
B. if
C. that if
D. if that
53 . Don’t you know, my dear friend, _________ it is you that she loves?
A. who
B. which
C. that
D. what
54 . He told me the news, believe it or not, _________ he had earned $1 000 in a single day.
A. that
B. which
C. as
D. because
55 . I think Father would like to know __________ I’ve been up to so far, so I decide to send him aquick note.
A. which
B. why
C. what
D. how
56 . A modern city has been set up in __________ was a wasteland ten years ago.
A. what
B. which
C. that
D. where
57 . We cannot figure out __________ quite a number of insects, birds, and animals are dying out.
A. that
B. as
C. why
D. when
58 . Parents are taught to understand __________ important education is to their children’s future.
A. that
B. how
C. such
D. so
59 . You are saying that everyone should be equal, and this is __________I disagree.
A. why
B. where
C. what
D. how
60 . Do you have any idea ___is actually going on in the classroom？
A. that
B. what
C. as
D. which
61 . ___is no possibility ___Bob can win the first prize in the match.
A. there；that
B. it ；that
C. there ，whether
D. it ；whether
62 . There is much chance ____ Bill will recover from his injury in time for the race.
A. that
B. which C until D of
63 . Information has been put forward ____more middle school graduates will be admitted into universities.
A. while
B. that
C. when
D. as
64. Great changes have taken place in that school. It is no longer _______ it was 20 years ago, _______ it was so poorly equipped.
A. what; when
B. that; which
C. what; which
D. which; that
65. Nobody believed his reason for being absent form the class _______ he had to meet his uncle at the airport.
A. why
B. that
C. where
D. because
66. Danny left word with my secretary _______ he would call again in the afternoon.
A. who
B. that
C. as
D. which
67. A warm thought suddenly came to me _______I might use the pocket money to buy some flowers for my mother’s birthday. A . if B . when C . that D . which
68. The way he did it was different ________ we were used to.
A. in which
B. in what
C. from what
D. from which
69. I’d like to work with _______ is honest and easy to get on with.
A. who
B. whoever
C. whomever
D. no matter who
70 . As a new graduate , he doesn’t know _______ it takes to start a business here .
A . how
B . what
C . when
D . which
71 . ______ some people regard as drawback is seen as a plus by many others .
A . Whether
B .What
C . That
D .How
72. We should respect food and think about the people who don’t have ______ we ha ve here and treat food nicely .
A .that B. which C. what D. whether
73 . Cindy shut the door heavily and burst into tears . No one in the office knew _____ she was so angry .
A .where
B . whether
C . that
D .why
74 . It is not immediately clear ______ the financial crisis will soon be over .
A . since
B . what
C . when
D . whether
75 . The fact has worried many scientists ______ the earth is becoming warmer and warmer these years .
A . what
B . which
C . that
D . though
76 . News came from the school office ______ Wang Lin had been admitted to Beijing University .
A . which
B . what
C . that
D . where
77 . She is very dear to us . We have been prepared to do ______ it takes to save her life .
A . whichever
B . however
C . whatever
D . whoever
78 . As his best friend , I can make accurate guesses about ______ he will do or think .
A . what
B . which
C . whom
D . that
79 . ______ wants to stay in a hotel has to pay their own way .
A . Anyone
B . The one
C . Whoever
D . Who
80 . ____ was known to us all that Johnson had broken his promise _____ he would give each of us a small gift .
A . As ; which
B . What ; that
C .It ; that
D . It ;which
81 . Jim said there was no clear evidence ______ they meant to mislead investors .
A . which
B . that
C . what
D . when
82 . Lawrence Craven , a doctor from the USA , is the author of several published reports , one of ______ introduced the idea in 1953 _______ aspirin could reduce the risk of heart attacks .
A . them ; when
B . which , that
C . what ; that
D . which ; when
83 . The view _____ many scientists hold is ______ too much emission of carbon dioxide is destructive .
A . what ; that
B . that ;which
C . that ;that
D . which ;which
84 . My consideration is _______ the financial crisis in the USA will heavily influence China .
A . which
B . if
C . what
D . why
85 . The beautiful views and the friendly people are ______ new comers like San Francisco .
A . when
B . what
C . where
D . why
86 . As far as I see , ______ is no possibility _____ he will win the tennis match this time .
A . it ; that
B . there ; that
C . it ; whether
D . there ; whether
87 . It’s not necessary to explain the truth ______ there are air ,water , and sunlight ,there are living things .
A . in wherever
B . that wherever
C . which
D . that
88 . Many experts hold the view _____ teacher development is ______ the key to better education lies .
A . which ; where
B . that ; where
C . which ; in which
D . that ; in which
89 . The moment _____ Leo will never forget is _______ Mr. Green gave him a lot of valuable advice on how to improve his writing .
A . that ; when
B . that ; that
C . when ; that
D . when ; where
90 . Our English teacher told us to find out _____ the differences between American English and British English lie .A . where B . how C . what D . which
91 . She was so angry and spoke so fast that none of us understood _______ he said meant.
A. that
B. what
C. that that
D. what that
92 . After _______ had happened he could not continue to work there.
A. which
B. how
C. what
D. having
93 . Someone is ringing the doorbell. Go and see ______.
A. who is he
B. who he is
C. who is it
D. who it is
94 . Don‘t you know，my dear friend，______ it is your money not you that she loves？
A. who
B. which
C. that
D. what
95 . It is pretty well understood _______ controls the flow of carbon dioxide in and out the atmosphere today.
A. that
B. when
C. what
D. how
96 . _______ she couldn‘t understand was ______ fewer and fewer students showed interest in her lessons.
A. What；why
B. That；what
C. What；because
D. Why；that
97 . When you answer questions in a job interview，please remember the golden rule：Always give the monkey exactly _______ he wants. A. what B. which C. when D. that
98 . I had neither a raincoat nor an umbrella. _______ I got wet through.
A. It‘s th e reason
B. That’s why
C. There‘s why
D. That’s because
99 . All the books I have are here . You may borrow ______ you like .
A . whatever
B . whichever
C . whenever
D . however
100 . ---I’m afraid I have to give it up .
---- Don’t be discouraged . Remember _____ sticks to his work will succeed one day .
A . anyone
B . who
C . no matter who
D . whoever
高考英语各类从句完成句子考点归纳
1. When I saw a lot of people gathering over there, I went over to see （怎么回事）.（matter）
2. I doubt （他是否会来）soon.（come）
3. Can you tell me （怎样到达）the railway station？（get）
4. （你认为谁）is the best football player in your city?（think）
5. Where do you think （我们应见面）？（meet）
6. （他们所拥有的共同之处）is that they are all independent.（common）
7. Shanghai is no longer （它过去的样子）.（be）
8. We are talking about （是否该让学生加入我们的俱乐部）.（admit）
9. I am just wondering （是否再等一小时）or just start off right away.（admit）
10. The question is （我们是否降低）the cost of the product.（reduce）
11. It was uncertain （他是否会来）.（come）
12. （他是否出过国）doesn’t make much difference.（abroad）
13. The question （我们是否应召a specialist was answered by the family doctor.（call）
14. The reason why she couldn’t come to meeting （是她没有被邀请）（invite）
15. The reason for such a serious accident is that （司机喝酒太多）.（drink）
16. He didn’t tell the teacher the reason （可以解释他的缺席）（explain）
17. Is this the reason （你为什么赞同我的观点）？（favor）
18. You are saying that everyone should be equal and this is （我不同意的方面）.（disagree）
19. A modern city has been set up in （十年前是一片荒地的地方）ten years ago.（be, wasteland）
20. We wrote a letter of thanks to （凡是帮助过我们的）.（whoever）
21. There was a time （他讨厌上学）.（hate）
22. I borrowed three books from the library, （其中的两本）are really worth reading.（two）
23. The boys , (其中较高的一个）could not reach the shelf, went to look for something to stand on.（tall）
24. It was the gate （在那儿他告诉了我好消息）.（tell）
25. I don’t like （他对他母亲讲话的方式）.（way）
26. Is this museum （他们上个月参观过的）?（visit）
27. This is the only way （你能想出作此事的）.（think）
28. This is the very one of the most interesting films （上周放映的）.（show）
29. It’s one of the most interesting films （上演）since last year.（put）
30. He still lives in the room, （房间的窗户）faces to the east.（which）
31. The fact （他失败了数次）makes him very upset.（he ,fail）
32. Would you please put the book （它该放的地方）?（belong）
33. （随着时间的流逝）, you’ll have a better understanding of it.（go）
34. Shylock （对钱如此贪婪）that all his friends left him.（greedy）
35. （最使我惊讶）was that they had finished it so quickly.（surprise）
36. We won’t be able to reach the top of the mountain （除非天气改变）.（unless）
37. （无论别人说什么）, I won’t give up.（matter）
38. （地球绕着太阳转）is known to us all.（turn）
39. （尽管他很富有）, he worked to make a career in science.（despite）
40. （尽管他年事已高）, he still leads an active life.（spite）
41. He （才起床）until his mother came in.（get）
42. You’d better take more clothes （以防天气变冷）（case）
43. It is （如此重的箱子）that nobody can move it.（such）
44. You can’t expect to play tennis （像他打得一样好）at your age.（as）
45. She was always speaking highly of her role in the play, （这使得其他人不高兴）（make）
必备英语 宾语从句易错题含答案解析
必备英语宾语从句易错题含答案解析 一、初中英语宾语从句 1． --Is Tom still in New York or already back at home? --I’m not sure ________. I’ll call to make sure. A．how he will be back B．that he has come back C．why he has come back D．if he has been back 【答案】D 【解析】 试题分析：句意：—汤姆仍在纽约呢还是已经回到家了？—我不知道他是否已经回来。我打个电话核实一下。A. how he will be back 他如何回来；B. that he has come back他已经回来了；C. why he has come back 他为什么已经回来了； D. if he has been back他是否已经回来。根据语境及选项意思，故选D。 考点：考查宾语从句。 2．—Can you tell me _____________? —Of course. Japan. A．what’s his job B．where does he come from C．where he is from D．what language he speaks 【答案】C 【解析】 这题考查疑问句做宾语从句的用法，宾语从句要变成陈述句语序，在根据答语：Japan，说明是问从哪里来的。选C。 3．—I'd like to know ________ for the party. —I have no idea. A．why did she buy so little food B．what she has prepared C．whether will she dance D．when is she leaving 【答案】B 【解析】 句意：--我想知道她为晚会做了什么。—我不知道。答案A,C,D的语序是疑问语序，不正确。宾语从句的语序应该是陈述语序。故选B。 4．—I'm going to give a talk on the Dragon Boat Festival to the exchange students. —Great! But don't forget to tell them __________. A．what should they eat at the festival B．what kind of race is often held C．why people enjoy the full moon
受力分析练习题(含标准答案及详解)
精选受力分析练习题35 道（含答案及详解） 1．如右图 1 所示，物体M 在竖直向上的拉力 F 作用下静止在斜面上，关于M 受力的个数，下列说法 中正确的是（ D ） A．M 一定是受两个力作用B．M 一定是受四个力作用 C．M 可能受三个力作用D．M 不是受两个力作用就是受四个力作用 ２．（多选）如图 6 所示，两个相似的斜面体A、B 在竖直向上的力 F 的作用下静止 靠在竖直粗糙墙壁 上。关于斜面体A和 B 的受力情况，下列说法正确的是（ＡＤ） 图6 A ．A 一定受到四个力 B．B 可能受到四个力 C．B 与墙壁之间一定有弹力和摩擦力D．A 与B 之间一定有摩擦力 3、如图3所示，物体A、B、C 叠放在水平桌面上，水平力F作用于C物体，使A、 B 、 C 以共同速度向右匀速运动，那么关于物体受几个力的说法正确的是（ A ） A．A 受6个，B 受2个，C受4个B．A 受5个，B 受3个，C 受3个 C．A 受5个，B 受2个，C受4个D．A 受6个，B 受3个，C 受4个 ４.（多选）如图5所示，固定的斜面上叠放着A、B 两木块，木块 A 与 B 的接 触面是水平的，水平力F 作用于木块A，使木块A、B 保持静止，且F≠0。则下列描述正确的是（ＡＢ Ｄ） 图5 A ． B 可能受到５个或 4 个力作用 B．斜面对木块B 的摩擦力方向可能沿斜面向下 C．A对B的摩擦力可能为0 D．A、B 整体可能受三个力作用 5、如右图 5 所示，斜面小车M 静止在光滑水平面上，一边紧贴墙壁．若再在斜面上加一物体m，且M 、m 相对静止，小车后来受力个数为（ B ） 图1
A ．3 B ．4 C ．5 D ．6 解读： 对 M 和 m 整体，它们必受到重力和地面支持力．对小车因小车静止，由平衡条件知墙面 对小车必无作用力，以小车为研究对象．如右图所示，它受四个力；重力 M g ，地面的支持力 F N1， m 对它的压力 F N2 和静摩擦力 Ff ，由于 m 静止，可知 F f 和 F N2 的合力必竖直向下，故 B 项正确． 6、如图 6 所示，固定斜面上有一光滑小球， 有一竖直轻弹簧 P 与一平行斜面的轻弹簧 Q 连接着， 小球处于静止状态，则关于小球所受力的个数不可能的是（ A ） A ．1 B ．2 C ．3 D ．4 7、如图 7 所示，在竖直向上的恒力 F 作用下，物体 A 、B 一起向上做匀加速运动。在运动过程 中，物体 A 保持和墙面接触， 物体 B 紧贴在 A 的下表面，A 和 B 相对静止，则下列说法正确的是 （ CD ） A. 竖直墙面对物体 A 有摩擦力的作用 B. 如果物体运动的加速度较小，则物体 C. 物体 B 受到 4 个力作用 D. 因为有向上的加速度，所以 A 、B 处于超重状态，恒力 F 一定大于物体 A 和 B 受到的重力之和 8、如图 8所示，小车 M 在恒力 F 作用下，沿水平地面做直线运动，由此可判断 （ ） A. 若地面光滑，则小车一定受三个力作用 B. 若地面粗糙，则小车可能受三个力作用 C. 若小车做匀速运动，则小车一定受四个力的作用 D. 若小车做加速运动，则小车可能受三个力的作用 【答案】选 C 、D. 【详解】先分析重力和已知力 F ，再分析弹力，由于 F 的竖直分力可能等于重力，因此地面可能 对物体无弹力作用，则 A 错； F 的竖直分力可能小于重力，则一定有地面对物体的弹力存在，若地面粗糙，小车受 摩擦力作用，共四个力作用， B 错；若小车做匀速运动，那么水平方向上所受摩擦力和 F 的水平分力平衡，这时小 车一定受重力、恒力 F 、地面弹力、摩擦力四个力作用，则 C 对；若小车做加速运动，当地面光滑时，小车受重力 和力 F 作用或受重力、力 F 、地面支持力作用，选项 D 正确 . 9、如图 9 所示， 用一根细绳和一根杆组成三角支架， 绳的一端绕在手指上， 杆的一端顶在掌心， 当Ａ处挂上重物时， 绳与杆对手指和手掌均有作用，对这两个作用力的方向判断完全正确的是图中的（ D ） 10、如图 10 所 示， 一倾斜墙面 下有一 质量为 M 的物体 A 受到一竖直向上的推力 F 的作用，处于静止状态，则（ BD ） A. A 可能受到一个力的作用 B. A 可能受到二个力的作用 A 、 B 间可以没有摩擦力作用 B C D 图9 图6 图7 图8 A
最新 宾语从句易错题
最新宾语从句易错题 一、初中英语宾语从句 1．— Excuse me, could you tell me ______? —There is a supermarket over there. You can get some there. A．how I can find a supermarket B．where the supermarket is C．where I can buy some fruit D．Where can I buy some fruit 【答案】C 【解析】 试题分析：句意：--打扰了，你能告诉我，我能在哪里买到水果？--那边有一个超市。在那你能买到一些水果。分析：考查宾语从句的用法，宾语从句用陈述语顺，第四项不符合。结合答语，介绍了能买到水果的地方，因此是问买到水果的地方，第三项符合语境。故选C 考点：考查宾语从句的用法。 2．—Can you tell me _____________? —Of course. Japan. A．what’s his job B．where does he come from C．where he is from D．what language he speaks 【答案】C 【解析】 这题考查疑问句做宾语从句的用法，宾语从句要变成陈述句语序，在根据答语：Japan，说明是问从哪里来的。选C。 3．—I’m sorry about yesterday. —Don’t worry about it. It’s never just one person’s fault. We should think about______better next time. A．how can we do it B．how we can do it C．how can they do it D．how they can do it 【答案】B 【解析】 【详解】 句意：——昨天我很抱歉。——不用担心。它永远不只是一个人的错。我们应该考虑下一次如何做得更好。考查宾语从句。宾语从句需用陈述句语序，AC都是疑问句语序，可排除。It’s never just one person’s fault. 不只是一个人的错，意思是“我们大家都有责任”；根据句意语境，可知they不合句意，故选B。 4．----I’d like to visit Kate tomorrow. Do you know______ ? ---- Sorry, I don’t know her address, either. A．why she lives there B．who she lives with
(完整word)精选受力分析练习题(含答案及详解),推荐文档
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宾语从句易错题整理.docx
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受力分析练习题 (2)
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4.下图中的三个物体正在匀速直线向左运动，那么各接触面的摩擦力大小和方向如何？ 5.如图所示，质量都是m的4块砖被夹在两木板之间静止。求中间两块砖之间的摩擦力。 6：对如图所示的皮带传动装置，下列说法中正确的是：（） A．A轮带动B轮沿逆时针方向旋转 B．B轮带动A轮沿逆时针方向旋转 C．C轮带动D轮沿顺时针方向旋转 D．D轮带动C轮沿顺时针方向旋转 7．如图所示，A、B两物体排放在水平面上，在水平力F的作用下处于静止状态．在以下情况中对B进行受力分析。 （1）B与水平面间无摩擦。 （2）B与水平面间及B．A之间都存在摩擦。 8．如图所示，人重600N，木板重400N，人与木板，木板与地面间动摩擦系数均为0．2，现在，人用一水平恒力拉绳子，使他与木块一起向右匀速运动，则人拉绳子的力及人与木块间的摩擦力分别是多少？
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人教版中考英语专项训练宾语从句易错题集锦-名师教育含答案解析 一、初中英语宾语从句 1．-Can you tell me ___________ your online shopping products will arrive? -In about 2 days, I suppose. A．how long B．how often C．how soon D．how much 【答案】C 【解析】 【详解】 句意：--你能告诉我你网购的物品什么时候能到吗？我想大概两天后。A. how long意思是：多久；对一段时间提问，回答通常为 for+一段时间。B. how often意思是：多久一次；问的是"事情发生的频率"。C. how soon意思是：多快，多久以后；对（从即时起）到将来某个时刻的时间长短提问，回答通常为 in+一段时间。D. how much意思是：多少钱；对价格提问，how much+不可数名词，意思是：多少。根据答语In about 2 days, I suppose我想大概两天后可知。故选C。 2．—Could you please tell me _____? —Find out which you can’t remember, memorize them and then practice them in reading. A．how many words and expressions I should remember B．how I could remember so many words and expressions C．how I can remember so many words and expressions 【答案】C 【解析】 【详解】 考查宾语从句，句意：“-你能告诉我怎么能记住这么多单词和表达吗？-找出你记不起的东西，背下来，然后在阅读中练习。”，观察句子，属于宾语从句，那么从句的语序应该是陈述语气，并且主句的时态为一般现在时，那么从句的时态应该根据具体情况而定，结合句意应该使用一般现在时，故选C。 3．-Excuse me. Could you please tell me ____________? -Sure. There’s a bookstore on River Road. A．where I can get a dictionary B．if is there a bookstore on River Road C．where can I get a dictionary D．how could I get a dictionary 【答案】A 【解析】 【详解】 句意：——打扰了。你能告诉我，我在哪里能买到一本词典吗？——当然可以。在沿江路上有一家书店。where I can get a dictionary我在哪里可以买到一本词典，if is there a bookstore on River Road在沿江路是否有一家书店，where can I get a dictionary 我在哪里可以买到一本词典. how could I get a dictionary我如何能买到一本词典。根据There’s a
高中物理各种模型受力分析练习题
单一物体在水平面上的受力问题 1、如右图所示，甲、乙、丙三个物体，质量相同，与地面间的动 摩擦因数相同，受到三个大小相同的作用力F，它们受到的摩擦 力的大小关系是( ) A．三者相同B．乙最大 C．丙最大D．已知条件不够，无法比较 2、如右图所示，在动摩擦因数μ＝的水平面上向右运动的物体，质量为 20kg，在运动过程中，还受到一个水平向左的大小为10N的拉力作用，则 物体受到的滑动摩擦力为(g取10N/kg)( ) A．10N，向右B．10N，向左 C．20N，向右D．20N，向左 3、质量为m的木块，在与水平方向夹角为θ的推力F作用下，沿水平地 面做匀速运动，如右图所示，已知木块与地面间的动摩擦因数为μ，那 么木块受到的滑动摩擦力应为( ) A．μmg B．μ(mg＋F sinθ) C．μ(mg－F sinθ) D．F cosθ 4、水平地面上的物体受一水平力F的作用，如右图所示，现将作用力F保持大小不变，沿逆时针方向缓缓转过180°，在转动过程中，物体一直在向右运动，则在此过程中，物体对地面的正压力F N和地面给物体的摩擦力F f的变化情况是( ) A．F N先变小后变大，F f不变 B．F N不变，F f先变小后变大 C．F N、F f都先变大后变小 D．F N、F f都先变小后变大 5、如右图所示，一木块放在水平桌面上，在水平方向共受到三个力即F1、F2和摩擦力的作用，木块处于静止状态，其中F1＝10N，F2＝2N．若撤去力F1，则木块在水平方向受到的合力为( ) A．10N，方向向左B．6N，方向向右 C．2N，方向向右D．零 6、如下图甲所示，重为G的物体在水平外力F作用下，向右以2m/s的速度匀速运动，物体与水平面间的动摩擦因数为μ.试问在下列情况下物体受到的滑动摩擦力将怎样变化？ (1)当F突然增大时； (2)从撤去F到物体最终静止的过程中； (3)将物体立放起来(如图乙)，仍在水平拉力F作用下，向右匀速运动的过程中． 7、质量为的空木箱，放置在水平地面上，沿水平方向施加拉力，当拉力F1＝时，木箱静止；当拉力F2＝时，木箱做匀速运动，求： (1)木箱与地面间的动摩擦因数； (2)木箱在的拉力作用下受到的摩擦力的大小； (3)木箱在水平拉力作用下，受到的摩擦力的大小． 8、如图所示，一个质量为m=2kg的物块，在F=10N的拉力作用下，从静止开始沿水平面做匀加速直线运动，拉力方向与水平成θ=370，物块与水平面的动摩擦因数μ=，取重力加速度g=10m/s2，sin370=，cos37°=。 （1）画出物块的受力示意图；
宾语从句易错题集锦-名师教育
宾语从句易错题集锦-名师教育 一、初中英语宾语从句 1．-Can you tell me ___________ your online shopping products will arrive? -In about 2 days, I suppose. A．how long B．how often C．how soon D．how much 【答案】C 【解析】 【详解】 句意：--你能告诉我你网购的物品什么时候能到吗？我想大概两天后。A. how long意思是：多久；对一段时间提问，回答通常为 for+一段时间。B. how often意思是：多久一次；问的是"事情发生的频率"。C. how soon意思是：多快，多久以后；对（从即时起）到将来某个时刻的时间长短提问，回答通常为 in+一段时间。D. how much意思是：多少钱；对价格提问，how much+不可数名词，意思是：多少。根据答语In about 2 days, I suppose我想大概两天后可知。故选C。 2．—I’m sorry about yesterday. —Don’t worry about it. It’s never just one person’s fault. We should think about______better next time. A．how can we do it B．how we can do it C．how can they do it D．how they can do it 【答案】B 【解析】 【详解】 句意：——昨天我很抱歉。——不用担心。它永远不只是一个人的错。我们应该考虑下一次如何做得更好。考查宾语从句。宾语从句需用陈述句语序，AC都是疑问句语序，可排除。It’s never just one person’s fault. 不只是一个人的错，意思是“我们大家都有责任”；根据句意语境，可知they不合句意，故选B。 3．----I’d like to visit Kate tomorrow. Do you know______ ? ---- Sorry, I don’t know her address, either. A．why she lives there B．who she lives with C．where she lives D．how she lives 【答案】C 【解析】 试题分析：句意：----我想明天去拜访凯特。你知道她住在哪里吗？----对不起，我也不知道她的地址。再根据Sorry, I don’t know her address, either.可知问住在哪儿，故选C。 考点：考查宾语从句。 4．"I want to know ." said the boy opening the box.
高考物理专题一(受力分析)(含例题、练习题及答案)
高考定位 受力分析、物体的平衡问题是力学的基本问题，主要考查力的产生条件、力的大小方向的判断(难点：弹力、摩擦力)、力的合成与分解、平衡条件的应用、动态平衡问题的分析、连接体问题的分析，涉及的思想方法有：整体法与隔离法、假设法、正交分解法、矢量三角形法、等效思想等．高考试题命题特点：这部分知识单独考查一个知识点的试题非常少，大多数情况都是同时涉及到几个知识点，而且都是牛顿运动定律、功和能、电磁学的内容结合起来考查，考查时注重物理思维与物理能力的考核． 考题1对物体受力分析的考查 例1如图1所示，质量为m的木块A放在质量为M的三角形斜面B上，现用大小均为F，方向相反的水平力分别推A和B，它们均静止不动，则() 图1 A．A与B之间不一定存在摩擦力 B．B与地面之间可能存在摩擦力 C．B对A的支持力一定大于mg D．地面对B的支持力的大小一定等于(M＋m)g 审题突破B、D选项考察地面对B的作用力故可以：先对物体A、B整体受力分析，根据平衡条件得到地面对整体的支持力和摩擦力；A、C选项考察物体A、B之间的受力，应当隔离，物体A受力少，故：隔离物体A受力分析，根据平衡条件求解B对A的支持力和摩擦力． 解析对A、B整体受力分析，如图， 受到重力(M＋m)g、支持力F N和已知的两个推力，水平方向：由于两个推力的合力为零，故
整体与地面间没有摩擦力；竖直方向：有F N＝(M＋m)g，故B错误，D正确；再对物体A受力分析，受重力mg、推力F、斜面体B对A的支持力F N′和摩擦力F f，在沿斜面方向：①当推力F沿斜面分量大于重力的下滑分量时，摩擦力的方向沿斜面向下，②当推力F沿斜面分量小于重力的下滑分量时，摩擦力的方向沿斜面向上，③当推力F沿斜面分量等于重力的下滑分量时，摩擦力为零，设斜面倾斜角为θ，在垂直斜面方向：F N′＝mg cos θ＋F sin θ，所以B对A的支持力不一定大于mg，故A正确，C错误．故选择A、D. 答案AD 1．(单选)(2014·广东·14)如图2所示，水平地面上堆放着原木，关于原木P在支撑点M、N处受力的方向，下列说法正确的是() 图2 A．M处受到的支持力竖直向上 B．N处受到的支持力竖直向上 C．M处受到的静摩擦力沿MN方向 D．N处受到的静摩擦力沿水平方向 答案 A 解析M处支持力方向与支持面(地面)垂直，即竖直向上，选项A正确；N处支持力方向与支持面(原木接触面)垂直，即垂直MN向上，故选项B错误；摩擦力与接触面平行，故选项C、D错误． 2．(单选)如图3所示，一根轻杆的两端固定两个质量均为m的相同小球A、B，用两根细绳悬挂在天花板上，虚线为竖直线，α＝θ＝30°，β＝60°，求轻杆对A球的作用力() 图3 A．mg B.3mg C. 3 3mg D. 3 2mg
中学英语易错题集锦大全211道题(精华珍藏版)
中学英语易错集锦大全211道题(精华珍藏版) 1.Because he was ill yesterday, so he didn’t go to work. (×) Because he was ill yesterday, he didn’t go to work. (√) He was ill yesterday, so he didn’t go to work. (√) [析] 用though, but表示“虽然……，但是……”或用because, so 表示“因为……，所以……”时，though和but 及because和so 都只能择一而用，不能两者同时使用。 2.The Smiths have moved Beijing. (×) The Smiths have moved to Beijing. (√) [析] 不及物动词后接名词或代词作宾语时，要在动词之后加上适当的介词；但不及物动词后接home, here, there等副词作宾语时，动词之后不必加任何介词。 3.The box is too heavy for him to carry it. (×) The box is too heavy for him to carry. (√) [析] the box既是这句话的主语, 也是不定式to carry的逻辑宾语，若句末再加上it，就和the box重复了。 4.Each of the boys have a pen. (×) Each of the boys has a pen. (√) [析] 复数名词前有表个体的each of, one of, every，either of等词组修饰，或有表否定的neither of, none of 等词组修饰时，谓语动词要用单数形式。 5.例:那是你心软！我不就是一个例子吗？ Neither he nor you is good at English. (×) Neither he nor you are good at English. (√) [析] either... or..., neither... nor..., not only..., but also... 等词组连接句子的两个主语时，
【英语】 状语从句易错题经典
【英语】状语从句易错题经典 一、初中英语状语从句 1．Many college students go to West China to help local people, ______ they may find a good job in big cities. A．because B．if C．although D．after 【答案】C 【解析】 【详解】 句意：许多大学生去中国西部帮助当地人，尽管他们可能在大城市找到一份好工作。A. because因为；B. if如果；C. although尽管；D. after在……之后。句子Many college students go to West China to help local people和句子they may find a good job in big cities.之间存在着转折关系，因此选择although尽管；故选C。 2．---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A．since B．unless C．when D．until 【答案】B 【解析】 试题分析：句意：----你想要明天和我们一起去划船吗？好的，如果我不忙我就去。A自从；B如果不；C当……时候；D直到……才。根据句意，应选B。 考点：考查连词。 3．—Tom wants to know if you ___ a picnic next Sunday. —Yes. But if it ___， we'll visit the museum instead. A．will have; will rain B．have; rains C．have; will rain D．will have; rains 【答案】D 【解析】 试题分析：句意：汤姆想知道下周你是否要去野餐。——是的，但是如果下雨，我们就会去参观博物馆。结合语境可知上文是宾语从句，描述的是将来发生的动作，故用一般将来时态。下文是条件状语从句，当主句为一般将来时态时，条件状语从句中用一般现在时态表示将来的动作，结合语境可知选D。 考点：从句中的时态 点评：英语宾语从句的时态和主句没有必然的联系，需结合语境进行具体分析。而英语状语从句的时态与主句有比较紧密的联系，若主句为一般将来时，时间和条件状语从句通常要用一般现在时表示将来，而不能直接使用将来时态。 4．Pandas are facing danger!The situation won’t change humans stop killing. A．unless B．though C．if D．after 【答案】A
1.受力分析 易错题
1.如图所示,在光滑水平面上有一静止小车,小车质量为M=5 kg ,小车上静止放置一质量为m=1 kg 的木块,木块和小车间的动摩擦因数为μ=0.2,用水平恒力F 拉动小车,下列关于木块的加速度a m 和小车的加速度a M ,可能正确的有( ) A.a m =2 m/s 2,a M =1 m/s 2 B.a m =1 m/s 2,a M =2 m/s 2 C.a m =2 m/s 2,a M =4 m/s 2 D.a m =3 m/s 2,a M =5 m/s 2 只有a>2才会使二者脱离，脱离后a m 始终等于2；当a 小于等于2时 一定有a m =a M 2.如图所示,一小车的表面由一光滑水平面和光滑斜面连接而成,其上放一球,球与水平面的接触点为a,与斜面的接触点为b 。当小车和球一起在水平桌面上做直线运动时,下列结论正确的是( ) A.球a 、b 两点处一定都受到支持力 B.球在a 点一定受到支持力,在b 点处一定不受支持力 C.球在a 点一定受到支持力,在b 点处不一定受到支持力 D.球在a 点处不一定受到支持力,在b 点处也不一定受到支持力 可能具有向左的加速度，也可能加速度是0 3.如图所示,三个物体A 、B 、C 叠放在斜面上,用方向与斜面平行的拉力F 作用在B 上,使三个物块一起沿斜面向上做匀速运动。设物体C 对A 的摩擦力为F f A ,对B 的摩擦力为F f B ,下列说法正确的是( ) A.如果斜面光滑,F f A 与F f B 方向相同,且F f A >F f B B.如果斜面光滑,F f A 与F f B 方向相反,且F f A =F f B C.如果斜面粗糙,F f A 与F f B 方向相同,且F f A >F f B D.如果斜面粗糙,F f A 与F f B 方向相反,且F f A 【英语】代词易错题集锦 一、单项选择代词 1．---What did the young man come to your company for? --- He wanted a job, _______could help him support his family. A．what B．one C．that D．one that 【答案】D 【解析】 试题分析:句意：——这位年轻人来你们公司是为了什么目的呢？——他想找份工作，一份能够让他养家糊口的工作。逗号后面有谓语动词，但所有选项都不能引导定语从句，故判断为同位语one后的定语从句，选D。 考点：考查代词用法。 2．You should make ______ a rule to leave things______ you can find them easily. A．it; where B．it; then C．that; there D．this; when 【答案】A 【解析】 考查代词及状语从句。句中it作形式宾语，真正宾语为to leave things where you can find them easily；where引导地点状语从句，选A。 3．The Olympic Games makes _____ possible for people to live side by side in peace. A．this B．it C．that D．不填 【答案】B 【解析】 本题的含义是奥运会使人们能够和平的生活在一起成为可能，本题make后的真正宾语位于句尾用动词不定式，那么在英文中通常用形式宾语it来代替真正的主语，故本题选B。 4．----Which of these resorts do you like best? ----______. They are both hot and crowded. A．Either B．Nothing C．Neither D．None 【答案】D 【解析】 考查情景交际和不定代词。“这些旅游胜地你最喜欢哪个？”“一个也不喜欢。他们既炎热又拥挤。”答语中的both ...and修饰的是hot和crowded，不要误以为是两者。根据问句中的these可知，是三者以上，排除A、C；nothing“什么也没有”；none“一个也没有”。故选D。 5．–– Which of the two drivers is to blame for the accident? ––______. It’s the cyclist’s fault. A．Both B．All C．None D．Neither【英语】代词易错题集锦