英语三大从句

1、 第十六章 非谓语动词语法专项被动特例补语do宾语主语不定式to do 与doing的区别非谓语动词状语to do 定语难点补语表语动名词分词一.非谓语动词的定义： 动词不作谓语用，不定式、分词与动名词。to加原形不定式，词组可做名词、副词、形容词。现在分词和过去分词，相当于副词和形容词。原形加上“ing”，动词具有名词性。【教学目标】 掌握动词不定式的基本构成以及与疑问词连用构成不定式短语的基本用法。 掌握动词不定式作宾语，宾补，状语的用法。 掌握动名词的基本构成与否定形式。 掌握动名词作宾语，宾补，状语的用法。 1.动词不定式构成：一般形式to do否定形式not to do特殊疑问句式w

2、hat to dohow to do itWhy to do itWhen to do it2.动词不定式的句法功能 功能例句说明主语To speak English is not easy for us. It is not easy for us to speak English. It takes me thirty minutes to walk to school every day.作主语用的不定式，常常用it 作形式主语，而把不定式放在后面表语My work is to clean the room every day. To clean the room every day i

3、s my work. 多数情况下， 不定式作表语，可转换为作主语。功能例句说明宾语What sports does he like to play? He likes to play basketball. 只能作某些动词的宾语，一般不作介词的宾语。 补语 She asked me not to speak Chinese in an English class. 在make, let , see, hear, watch等动词后，不定式省略to。 定语Have you got anything to eat. 不定式作定语，要放在所修饰词的后面。状语I am sorry to trouble

4、 you. I went to the library to study English .不定式作状语，其逻辑主语要和句子的主语一致。 注意：1. 作定语的不定式如果是不及物动词，且与所修饰的词之间有动宾关系，要在不定式之后加适当的介词。 I need a room to live in . 2. 不定式作下列动词的宾语。 四个希望两答应，（hope, wish, want, would like, agree, promise）三个要求莫拒绝，( ask, require，demand， refuse) 设法学会做决定，（manage，try, learn, decide）不要假装在选择。

5、pretend choose 告诉命令要开始, ( tell, order, start, begin) 提供鼓励莫迟疑。(offer, encourage) 基础过关1.Granny often tells us water in our daily life. Asave B. saving C. to save D. saves【解析】tell sb. to do sth. 告诉某人做某事 2. -We can use QQ to chat with each other on the Internet. -Really? Will you please show me it. how

6、to use B. what to use how can I use D. what can I use 【解析】句中指怎么用，而从句又要用陈述语气，故选A 3. His parents often encourage him hard. A. work B. working C. to work D. works 【解析】encourage sb. to do sth. 鼓励某人做某事 He always encourages me to try my best. 他总是鼓励我要竭尽全力。4.The boy promised_late for school again.to not be

7、B. not to be Cnot being D. being not 【解析】四个希望两答应。promise 后都接to do 作宾语。 肯定形式是：promise to do 否定形式是：promise not to do 5. It took Li Ming an hour_his bike yesterday. A. to repair B. repairing C. repaired D. repair 【解析】花费句型 it takes sb. some time to do sth. 常考句型，it is adj. for / of sb. to do sth. 两个句型都是动

8、词不定式作主语。 能力提高1.He made some toys_his little son. Aplease B. to please C. pleasing D. pleased【解析】 有的学生会看到 make 而选择 A。要看后面please his little son 是使他的小儿子开心。因此是表示目的。动词不定式做目的状语的用法。 2.Who do you think youd like_with you, a boy or a girl?Ato let to go B. letting to go C. to let go D. let go【解析】句意：你想让谁跟你一起去，

9、一个男孩还是女孩。 would like to do sth. let sb. do sth. 都是固定搭配。 3.I cant help_housework at home because I am busy with my homework. A.doing B. to do C. done D. with doing 【解析】同学看到cant help doing禁不住做某事，选择了A. 但根据句意：我在家不能帮忙做家务，因为我忙于做家庭作业。 help (to) do sth. 4. He is too old the box.A.to carry B. carrying C. car

10、ry D. carries 【解析】too to 太而不能与so that如此以至于可以互换。这两个句型是中考常考句型。 5. Tom often makes his little sister , but yesterday he was made_by his sister.Acry, to cry B. to cry , cry C.cry, cry D. to cry, to cry【解析】 make sb. do sth. 是省略to 的不定式的固定用法。 被动语态的时候to 要加回来。He was made to cry by his sister.一感，二听，三让， 四看的被动，

11、let 通常不用于被动语态。 不定式作宾语补足语 tell, ask, want, allow, get, would like, warn ,encourage 后常跟动词不定式作宾语补足语。 1.Before going to the History museum, our teacher told us the public rules. Aobey B. to obey C. obeying D. obeyed 【解析】tell sb. to do sth. 固定表达，答案为B2. We have two rooms , but I cant decide . A. to live ,

12、 to choose which one B. lived, choose which one C. to live in , which one to choose D. live, which one. 【解析】第一空是动词不定式做定语，不及物动词后的宾语不能省略。第二空是动词不定式的特殊疑问形式是特殊疑问词+to do 结构。所以应该选择C。句意是： 我有两个房间可以住，但是我还没有决定选择哪一个。 3. The teacher told the students any food into the computer room. Anot to bring B. not bring C.

13、 dont bring D. bring not 【解析】tell sb. to do sth. 告诉某人做某事 。 否定结构是tell sb. not to do sth. 不定式的否定结构， not to do sth. 不分家。 所以选择A。 4. At least 300 million people are using QQ by Ma Huateng to chat on line. A. create B. creates C. creating D. created 【解析】 QQ 和create 之间是被动关系。所以用过去分词表示过去和完成。至少3亿人正在使用QQ，他是由马化

14、腾创建的网上聊天工具。答案是D。省略动词不定式符号to的用法总结口诀是：一感二听三让四观看五词组。一感：feel 二听：hear、listen to 三让：let、have、make 四看：observe、see、watch、notice 五词组，why not, had better, would rather, look at , would/could you please 基础过关1. Nancy is really a hard-working student. We often see her books in the classroom.read B. reading C. to

15、 read 解析 see sb. do sth.和see sb. doing sth.两个表达都可以。在具体的场景中 see sb. doing sth. 表示看到某人正在做某事的瞬间。而题意说的是经常看到某人做某事，所以选 A. 2. Youd better too much time playing computer games. A. dont spend B. not to spend C. to not spend D. not spend 解析 had better do sth. 最好做某事，固定搭配。否定形式是 had better not do sth. 因此应该选择D. 3

16、. How do you feel when you watch the national flag go up? It makes me very proud. felt B. to feel C. feeling D. feel 解析 make sb. do sth. 让某人做某事，硬要某人做某事； make sth. adj. 使某物处在什么状态。 make sth. done 让某事被做。 4. Why dont you your teacher for help when you cant finish it by yourself. A. ask ; write, B. to as

17、k, writing C. ask, writing D. asking; write【解析】why not do sth.= why dont you do sth. 为什么不做某事呢？ 完成实践值得忙，后面都加doing。 所以选择C能力提高1.Youd better _ the book to others. Adont lend B. not to lend C. didnt lend D. not lend 【解析】had better do sth. had better not do sth. 最好做某事，最好不要做某事，的固定搭配。 所以答案D。 2. She is now i

18、n great trouble. Lets _ her. Ahelp B. to help C. helping D. helped 【解析】 一感feel，二听 hear, listen to，三让（make, let, have) 四看 see, watch, notice, observe，五词组 why not, had better, would rather, would you please, look at 后面跟动词原形, 所以选择A. 3. My mother made me _ the piano when I was very young. Now, I begin t

19、o understand her. AplayB. to playC. playing D. plays【解析】 三个让，let, have, make sb. do sth. 所以答案为A。4. What about playing football this afternoon, Sam? I would rather at home than football. It is too hot outside. Astay, playing B. stay, play C. to stay, to play D. to stay, playing【解析】would rather do sth

20、. than do sth.宁可也不 prefer to do sth. rather than do sth. 宁可也不 prefer doing sth. to doing sth. 也表示宁可也不。三种表达方式所接的非谓语形式不同。可以互相转化。本题答案为B 5. When I passed the window, I saw some boys TV.AWatched B. watch C. watching D. watches【解析】 see sb. do sth, 和see sb. doing sth. 两个表达从语法上都对，那么我们就要看语境。当我走过窗户的时候，我看到有些男孩

21、正在看电视。所以选择C动名词 功能例句说明主语Eating too much is bad for your health.谓语动词用单数表语His hobby is collecting stamps.多数情况下， 动名词作表语，可转换为做主语。宾语动词的宾语I like playing basketball very much.表示一般的习惯或抽象的行为或经常的动作。介词的宾语Stamps are used for sending letters.定语She is in the reading room.We should improve our teaching methods.只表示它

22、所修饰的词的用途，所属关系等，用在所修饰的词之前动名词的常见用法 1.表示在室内完成的动作行为，常用 “ do + some/any/the + v-ing 结构.这类词组有: do some cooking /cleaning/ reading/ speaking/ sewing/ shopping/washing做饭/ 扫除/ 读书/ 说话/做针线活/ 买东西/ 洗衣服. 2.表示在室外完成的动作行为, 通常用 “go + v.-ing”结构。 常见的词组有： go fishing/ swimming/skating/climbing/walking/dancing/shopping去钓鱼

23、/ 游泳/ 滑冰/爬山/散步/ 跳舞/购物. 3.在enjoy, finish, keep, mind, miss, be worth, have fun, have trouble/problem(in), spend, feel like, be used to等。 及 practice 等动词的后面， 不能接不定式，而是接v.-ing 形式. 我们可以按下面的顺口溜记忆这些词： 完成实践值得忙（ finish, practice, be worth, be busy） 继续习惯别放弃 ( keep on, be used to, give up) 考虑建议不禁想 ( consider,

24、suggest, cant help, feel like) 喜欢思念要介意 ( enjoy, miss, mind) 基础过关1、 When shall we take a walk? After I finish the dishes.A. wash, B. washing C. washed D. to wash.【解析】我们什么时候散步，等我洗完盘子。 Finish doing是固定搭配。我们的口诀是完成实践值得忙（finish, practice, be worth, be busy) 2. Have you ever seen the TV play My ugly Mother?

25、 Yes, its well worth_. Its_ moving that Ive seen it twice. A. seeing, too, B. to see, enough C. seeing, so D. to see, such 解析 完成实践值得忙 。be worth doing sth. 值得做某事。 so + adj, adv+ that Such + n. + that 如此 以至于3.Peter is busy at school, but he never forgets exercise every day.A. working; doing B. working

26、, to do C. at wok, doing D. to work, doing 解析 忙于做某事，be busy doing sth. 固定用法。forget to do 忘记去做某事。Forget doing sth. 忘记做过某事。Peter 忙于学习，但是他从没忘记每天去做运动。 4. He saw a little boy on the truck when he got off the car.A.played B. to play C. playing D. is playing 解析 一感，二听，四看可跟doing. How /what about doing sth. f

27、eel like doing sth, give up doing sth. 这些词和词组后面跟doing. See sb. do sth. 是看到了动作的全过程。See sb. doing sth. 只看到了一个片断。When he got off the car. 是一个时间点，所以看到的是片断 。 答案为C .5. we make it half past seven? What about it a little earlier.A.Shall, making B. Shall, to make C. Will, making D. will ; to make 【解析】what ab

28、out doing sth. 做事怎么样。选择A 能力提高1、 good care of the vegetables can make them grow better. A. Taking B. take C. Took D. takes 【解析】动名词和动词不定式可以作主语。动词原形不能做主语。很多学生在做题的时候会犯这种错误。动名词和动词不定式作主语时，谓语用第三人称单数。 所以选择A。 2、“we cant go out in this weather.” said Bob. out of the window. A. looking B. to look C. looked D.

29、Having looked 【解析】 动名词可以做伴随状语。因此选择A。 方法规律有些动词或词组后接动名词或动词不定式均可，但意义稍有差别 stop to do 停下来做某事（重点在于：开始做某事）stop doing 停止做某事remember to do 记住要做某事remember doing 记得曾经做过某事forget to do sth. 忘记做某事（未发生）forget doing sth. 忘记做过某事（已发生）try to do sth. 努力做某事try doing sth. 试着做某事go on to do sth.开始做一件新事go on doing sth. 继续不停

30、地做某事allow doing sth. 允许做某事allow to do sth. 允许某人做某事 【记忆口诀】想要忘记forget 却又不得不记起remember 。想要停下stop 来却又偏偏继续go on 。不允许allow自己沉沦要努力try忘记你基础提高1.- Dont forget my parents when you are in Beijing. OK!, I wont. Ato see B. sees C. seeing 【解析】forget to do sth. 忘记去做某事。所以选择A2. Mr. Brown asked us to stop , and we sto

31、pped him at once. Atalking, to listen B. to talk , to listen C. talking, listening D. to talk ; listen 【解析】布朗先生要求我们停止说话，我们停下来开始听他说话。Stop doing sth. 停止做某事. Stop to do sth. 重点在于开始做新的事情。 3. Mary dances best in our school. I agree. will never forget her dance for the first time. Aseeing B. to see C. see

32、 D. seen 【解析】 forget doing 表示忘掉做过的事。 句意是：Mary 在我们学校跳舞最好。同意，我将永远也忘不了第一次看她跳舞的场景。答案为A 4. Dad ，why should I stop _ computer games? For your health. My boy, I am afraid you . A.to play , must B. playing, have to Ato play, can D. playing , may 【解析】 stop doing sth. 停止做某事。Stop to do sth. 重点是开始做某事。Have to 表示

33、不得不。所以选择B。 能力提高1. The light in the classroom is still on. Oh, I forgot . Aturning it off B. turn it off C. to turn it off D. turning off it【解析】 句意： 教室的灯还开着。噢，我忘了关灯了。 应该表示忘记去做某事。forget to do sth. forget doing sth. 表示做过了自己却忘了。结果应该是灯关了。 答案为C 2. Mother made the baby and laughed. Astopped crying B. to st

34、op to cry C. stop crying D. stop to cry 【解析】 make sb. do sth. 固定搭配。 stop crying表示停止哭泣。Stop to cry 表示开始哭。 所以答案应该是C 。3. Jane said she sending e-mails letters. Apreferred ; to writing B. preferred; to write C. prefers, writing D. prefers, to writing. 【解析】 prefer doing to doing . 与其宁可的固定搭配。 句子中包含宾语从句，主句

35、是过去时，从句应是相应的过去时。因此选择A 4. Do you remember me ? Yes, I remembered you at the gate of the university on the first day . A. to see B. seen C. seeing D. saw 【 解析】remember doing sth.记得做过某事。Remember to do sth. 记得要去做某事。答案为C 第十八章 宾语从句引导词定 义语 序构 成宾语从句时 态规律总结【教学目标】 熟练掌握宾语从句的构成和基本用法。一.宾语从句定义 在句子中起HYPERLINK /vie

36、w/139.htm宾语作用的从句叫做宾语从句。 宾语从句分为三类： 动词的宾语从句； Tom said that he was reading a book.介词的宾语从句； The new book is about how Shenzhou 6 manned spaceship was sent up into space. 形容词的宾语从句。 He is glad that Li Ming went to see him when he was ill. that 从句为陈述句 If/whether 从句为一般疑问句 特殊疑问词 从句为特殊疑问句 公式 从句为祈使句 二、宾语从句的构成引

37、导词宾语从句陈述语序（主语+谓语） 语 序主语为现在时从句任意 主语为过去时从句为相应过去 主句任意从句一般现在（客观真理）时 态宾语从句须注意，几点事项应牢记。一是关键引导词，不同句子词相异。陈述句子用that；一般疑问是否（if，whether）替；特殊问句更好办，引导还用疑问词。二是时态常变化，主句不同从句异。主句若为现在时，从句时态应看意；主句若为过去时，从句时态向前移。三是语序要记清，从句永保陈述序。1.引导词 1.1 当陈述句做宾语时，引导词为thate.g. 1. He told me, “I have been to Paris once ”. He told me that

38、he had been to Paris once. 2. He says, “Tom will go to BeiJing tomorrow ”. He says that Tom will go to Beijing tomorrow. 1.2 一般疑问句变成由if 或whether引导的宾语从句 e.g. 1.She said, “ Do you often come here to read newspaper? ” She asked if (whether) I often came here to read newspaper. 2.“Will they go to visit

39、the Great Wall?” Do you know. Do you know if (whether) they will go to visit the Great Wall. 1.3 特殊疑问句变成特殊疑问词引导的宾语从句 e.g. 1. When will Mr. Li come back? Do you know? Do you know when Mr. Li will come back .2. “How can we get to the post-office?” he asked. He asked how they could get to the post-offi

40、ce.1.4 祈使句按照tell/ask/order sb (not)to do sth 的公式完成。 e.g 1. our teacher tells us, “Dont read in the sun，because it is bad for your eyes.” Our teacher tells us not to read in the sun because it is bad for our eyes. 2. “Dont be late again.” my mother asks me. My mother asks me not to be late again. 2.

41、语序：宾语从句为陈述句语序（连词后为主谓语序。 I think (that) I can sell newspapers. 连 主 谓语 Could you tell me if he can come? 连 主 谓 I dont know what he is thinking about. 连 主 谓 注意： 需要特别注意的是以下五个句型。 whats wrong with you? whats the matter with you? whose bike is it? whats in the desk? how old/many,much,;long 等疑问词不能分开。 3.时态 3

42、.1 主句是现在，从句任意。I want to know , “ when did you come to China?”I want to know when you came to China. 从句一般过去 I want to know，“ How long have you stayed here?I want to know how long you have stayed here. 从句现在完成I want to know， “When will you go back?”I want to know when you will go back. 从句一般将来3.2 主语过去从句

43、相应过去主语直接引语间接引语过去一般现在一般过去时一般过去时过去完成一般将来过去将来现在完成过去完成现在进行过去进行I wanted to know , “ When did you come to China?”I wanted to know when you had come to China. 从句过去完成时I wanted to know, “ How long have you stayed here?”I wanted to know how long you had stayed here. 从句过去完成I wanted to know, When will you go ba

44、ck?”I wanted to know when you would go back. 从句过去将来3.3 无论主句是什么时态，从句用现在时态，内容为客观真理。Columbia proved the earth is around.主句过去 一般现在时Our physics teacher told us light travels faster than sound. 主句过去 一般现在时Our geography teacher says the moon moves around the earth. 主句现在 一般现在时基础过关1. Can you tell me _ your pa

45、rents at home? I often wash clothes and sweep the floorAhow will you help Bhow you help Chow you will help Dhow do you help【解析】答案为B。本题考查的是宾语从句。宾语从句主要从时态、语序、引导词三方面考查。本题考查了语序和时态。宾语从句的语序要用陈述语序，故排除A、D，根据答语“我经常洗衣服和扫地，”可以知道用的是一般现在时，用一般现在时提问，故选择B。 2. Our teacher told us the sun _ in the eastArise Brose Cri

46、sing Drises【解析】答案为D。本题考查的是宾语从句的时态。当从句表达的是客观事实或真理，即使主句是一般过去时，从句也用一般现在时表达。又因为从句主语“the sun”是第三人称单数，动词要用单三形式，故选D。3. The new-designed car is on show now. I wonder_Ahow much it cost Bhow much did it costChow much it costs Dhow much does it cost【解析】答案为C。本题考查的是宾语从句的语序和时态。根据宾语从句的语序要用陈述语序来判断，排除B、D。根据题干用的是一般现在

47、时，宾语从句也要用一般现在时，从句的主语是“it”，动词要用单三形式，故选C。 4. I want to know the day before yesterday. Awhat you do B. what do you do C. what you did D. what did you do【解析】答案为C。本题考查的是宾语从句的语序和时态。根据宾语从句的语序要用陈述语序来判断，排除B、D。根据题干用的是一般现在时，宾语该用什么时态就用什么时态，因为有yesterday所以用过去式故选C。 5. Mr. Smith gave a talk at No. 5 Middle School l

48、ast week. Do you know _? Awhat did he talk aboutB. what does he talk about C. what he talks about D. what he talked about 【解析】答案D。本题考查的是宾语从句的语序和时态。根据宾语从句的语序要用陈述语序来判断，排除A，B。根据题干用的是一般现在时，宾语从句任意，第一句话中last week 故选D。 1.she says. Shell see a film. She says_ she _ _a film.【解析】宾语从句三要素：引导词，语序和时态。 因为句子为陈述句引导词

49、为that. 主语为一般现在时，从句任意，原来是将来时，现在还用将来时。根据陈述语序。所以答案是：that , will see2.Did Peter come here yesterday? LiLei wants to know. LiLei wants to know _Peter _【解析】转化成宾语从句的句子为一般疑问句，所以引导词为if或whether，主语为一般现在时，从句该用过去时还用过去时。所以答案为if/whether came here yesterday. 3.Where does she live? Mr Hu asked. Mr Hu asked _ _ _【解析】

50、转化为宾语从句的句子为特殊疑问句，引导词为特殊疑问词where. 主语为过去时，从句也用相应的过去时，原来为一般现在变成一般过去。用陈述语序。所以答案为where she lived. 4.The teacher told us. Dont play on the street.The teacher told us_ _ _ on the street.【解析】转化为宾语从句的句子为祈使句，所以我们要套公式，tell sb. not to do sth. 所以答案为 not to play 5.Our geography teacher told us . The earth goes ar

51、ound the sun.Our geography teacher told us_ the earth _ around the sun. 【解析】转化为宾语从句的句子是客观真理。所以不论主句的时态从句都要用一般现在时。又是陈述句所以引导词为that.答案为that goes能力提高1. Do you know when the teacher back next week? Awill come B. comes C. come D. would come 【解析】本题考查的宾语从句的时态。主语为一般现在时，从句有将来的时间状语。next week. 所以选择A。 有的同学会说，when

52、 引导的时间状语从句不是用一般现在时表示将来吗？说的很好，在时间状语从句中是这样，在宾语从句中则不同。 2. Sam，do you know if Alice _ to my party next week? I think she will come if she _ freeAcomes；is Bcomes；will be Cwill come；is Dwill come；will be【解析】答案为C。本题考查的是if引导宾语从句和条件状语从句的时态用法。问句中的“if”引导的是宾语从句，主语用的是一般现在时，从句时态要根据实际情况而定，根据时间状语“next week”可以判断用一般将

53、来时，排除A、B；答语中的“if”引导的是时间状语从句，主句用的是一般将来时，从句要用一般现在时，故选C。3. The doctor asked ? AWhats wrong with you B. what was wrong with you C. what wrong is with you D. what you were wrong with 【解析】首先主句用过去时，从句要用相应的过去时。排除AC . 语序。有四个特殊的。其中有whats wrong with you. 所以这个语序不变，应该选择B 4. Do you know _ they listened to yesterd

54、ay evening? A. what B when C why D how 解析本题考查的是宾语从句的引导词 ，引导词有疑问代词 what， which， whose 和疑问副词 when, why where, how ，其区别是看后面的句子缺少什么成分。They listened to 缺少宾语成分。所以只能选择疑问代词，答案为A 5. A computer can only do you have instructed it to do. Ahow B. after C. what D. when 解析很多考生会选择after，事实上从 句子结构可知，空缺处应填引导宾语从句的引导词，做

55、动词不定式to do 的宾语。 因此应该选择what. 答案为C 规律总结引导宾语从句时if ,whether 的区别： 1. or not放在whether之后时，只能用whether不用if。I dont know whether or not he will come. 我不知道他是不是回来。注1：如果or not放在whether所引导的从句句尾，则可以用if来替换。I dont know whether/if he will come or not.我不知道他是不是回来。2 在强调任意选择时,用whetheror,此时不用if替换whether。He asked me whether

56、 I wanted to go there by train or by bus.他问我是想乘火车还是坐公共汽车去那里。注：whether和or一起还有“不管”之意,引导让步状语从句。Whether he drives or takes the train, he will be here on time.不管开车来还是乘火车来，他都会准时到。3 把宾语从句放在句首，只用whether不用if。Whether he will come I am not sure他是不是来我拿不准。4 从句作介词宾语时只用whether不用if。It depends on whether it will be

57、fine.那得看是不是晴天。5 作discuss等动词的宾语时，用whether不用if。We discussed whether we should close the shop.我们讨论是不是该关掉商店。6 句子中有if引导的条件句，如再有表示“是否”的宾语从句，用whether不用if。He asked me whether Id move to New York if I got the job.他问我如果我得到那份工作是否会搬家到纽约。7 容易产生歧义时用whether不用if来表示“是否”。 Please let me know if you need help. 如果你需要帮助请

58、告诉我。或：请告诉我你是否需要帮助。 对比：Please let me know whether you need help.请告诉我你是否需要帮助。 8 如果宾语从句为否定句时，则只用if不用whether。I dont know if it wont rain tomorrow.我不知道明天是不是会下雨。宾语从句中的that 一般可以省略，下面情况除外。 1.当that作learn, suggest, explain,agree,wonder,prove,mean,state,feel,hold等动词的宾语时; Both candidates agree that the biggest

59、local concern is unemployment.2. 当宾语从句较长时; 3. 当一个动词带有两个或两个以上宾语从句时,此时第一个that可以省略,第二个that不可以省略; Its depressing to think (that) life is purposeless and that evaluation has no higher destination. 4. 当宾语从句是双宾语中的直接宾语时; He told me that he would go abroad to study after graduate from middle school. 5.当宾语从句有

60、it做其先行词时; They found it difficult that they would finish their work in two days.6. 当动词和that 之间有插入语或者主句的状语时， that 不可省略。 The boss said, pleasantly and sternly, that our thinks was too slow to suit the needs of the modern society. 7.当that从句用作in, but, expect 等宾语时，that 不可省略。 The book is unsatisfactory in