Unit 10 知识点归纳总结（期末复习） 最全面人教版八年级上册英语.docx

1、Unit 10 If you go to the party, youll have a great time!一、词汇与短语 重点单词A部分1. meeting n. 会议；集会；会面2. video n. 录像带；录像3. organize v. 组织；筹备4. chocolate n. 巧克力5. upset adj. 难过；失望;沮丧6. taxi n. 岀租汽车；的士7. advice n. 劝告；建议B部分1. travel v. & n. 旅行；游历2. agent n. 代理人；经纪人3. expert n. 专家4. teenager n. 青少年5. normal adj.

2、 正常的；一般的6. unless conj. 除非；如果不7. certainly adv. 无疑；肯定；当然；行8. wallet n. 钱包9. mile n. 英里10. angry adj. 发怒的；生气的11. understanding adj.善解人意的；体谅人的12. careless adj. 粗心的；不小心的13. mistake n. 错误；失误14. himself pron. 他自己15. careful adj. 小心的；精心的；慎重的16. advise v. 劝告;建议17. solve v. 解决;解答18. step n. 步；步骤19. trust v.

3、 相信；信任20. experience n. 经验；经历21. halfway adj. & adv. 在中途；部分地做22. else adv. 别的；其他的 重点短语A部分1. have a great/good/ wonderful time= have fun= enjoy oneself 过得愉快2. go to the party with sb.和某人一起去参加聚会3. tomorrow night 明天晚上4. have a class meeting 开班会5. a good time to.do sth. 做某事的好时机6. ask sb. to do sth. 要求某人

4、做某事7. tooto 太而不能8. give sb. some advice 给某人一些建议B部分1. go to college 上大学2. make (a lot of) money 赚(许多)钱3. Its best (not) to do sth.最好(不)做某事4. have problems with/doing sth.在某方面/做某事有困难5. run away 逃避；逃跑6. keep to oneself 保守秘密7. the first step 第一步8. in half 分成两半9. solve a problem 解决问题10. be famous for 因而出

5、名 重点句子A部分1. If you go to the party, youll have a great time. 如果你去参加聚会，你会过得愉快。2. -I think Ill wear jeans to the party. -我想我会穿牛仔裤去参加聚会。-If you do, the teachers wont let you in. -如果你这样做的话，老师们不会让你进去的。3. The students are talking about when to have a class party.同学们正在讨论何时举行班级聚会。4. -What will happen if the

6、y have the party today? 如果他们今天举行聚会,会发生什么事？-If they have it today, half the class wont come.如果他们今天举行聚会,会有一半的同学不来。5. -Should we ask people to bring food? 我们应该让大家带食物来吗？-If we ask people to bring food, theyll just bring potato chips and chocolate.如果我们要求人们带食物来，他们只会带来炸薯条和巧克力。6. Lets order food from a rest

7、aurant. 咱们从饭店订食物吧。7. Theyll be too lazy to cook. 他们会很懒而不做饭。8. I dont know what to do about going to Mikes birthday party tomorrow night.关于明天晚上去迈克的生日聚会这件事，我不知道该做什么。9. Im not sure how to go to the party. 我不确信如何去参加聚会。B部分1. Sometimes they have problems with their schoolwork, and sometimes with their fri

8、ends.有时他们学业有困难，有时和朋友之间出现了问题。2. Some people believe the worst thing is to do nothing.一些人相信最糟糕的事情是什么也不做。3. Unless we talk to someone, well certainly feel worse. 除非和别人谈一谈，否则我们肯定会感觉更糟糕。4. Its best not to run away from our problems. 最好不要逃避我们的困难。5. Sharing a problem is like cutting it in half. 分担一个烦恼就像把问题

9、分成两半。6. So youre halfway to solving a problem just by talking to someone about it!因此，你只要跟人谈谈这个问题，你就已经解决了问题的一半！ 重点单词变形A部分1. meetmeeting（名词）会议2. organizeorganizer/organization（名词）3. upsetsad/ unhappy（同义词）4. adviceadvise（动词）B部分1. traveltraveled（过去式）2. certaincertainly（副词）3. solvesolved（过去式）4. hehimself

10、（反身代词）5. carefulcareless（反义词）6. angerangry（形容词）angrily（副词）7. understandunderstanding（形容词）understood（过去式）8. adviseadvice（名词）advised（过去式）二、语法知识点A部分1、if引导的条件状语从句 要想弄清状语从句，首先要知道什么是状语，简单的说，状语通常由副词充当或相当于副词的短语和句子充当，除修饰名词之外的词（动词，形容词，副词等）都称为“状语”。eg：He came yesterday. 他昨天来了。状语We eat at the restaurant. 我们在餐馆吃饭

11、。状语I go to work by car. 我开车去上班。状语He is running fast. 他正在快速的奔跑状语This story is very interesting. 这个故事很有趣。状语I usually play football in the afternoon. 我通常下午踢足球状语 状语上面这些词或短语都充当状语，如果上面这些词或短语由句子替代了，那么这个句子就叫状语从句。eg：when she came into my room, I was reading a book. (时间状语从句)当她走进我的房间时，我正在看书。We must camp where

12、we can get water. (地点状语从句)我们必须在能找到水的地方露营。We couldnt go out because it was too cold. (原因状语从句)因为天气太冷了，我们不能出去。We must do as the teacher tells us. (方式状语从句)我们必须照老师说的做。I turned off the TV so that my sister could study in peace. (目的状语从句)我把电视关了，这样我妹妹就可以安心学习了The child is so young that he cant go to school. (

13、结果状语从句)这孩子太小了以至于不能去上学。If it rains tomorrow, I will take my umbrella. (条件状语从句)如果明天下雨，我就带上雨伞。Even if/though it is raining, we will go there. (让步状语从句)即使下雨，我们也要去那儿。He plays football as well as his brother. (比较状语从句)他踢足球和他哥哥一样好。从上面的例子可以看出，状语从句种类繁多，一般可分为9大状语从句：时间/地点/原因/方式状语从句（帮助记忆：when/where/why/how）；目的/结果

14、状语从句；条件/让步状语从句；比较状语从句。 状语从句和其他从句一样，也需要引导词与主句加以区分。那么常用的引导词如下：类别引导词含义类别引导词含义时间状语when当时候地点状语where在地方while在期间wherever在任何地方as随着、一边原因状语because因为whenever每当，每次as由于since自从since既然until/till直到方式状语asthe way像按照before之前as ifas though好像就像after之后目的状语in order that为了以便as soon asonce一就so that结果状语so that以至于让步状语Although

15、though尽管sothatsuchthat如此以至于even though even if即使条件状语if如果as尽管as/so long as只要while虽然unless除非whetheror不管比较状语asas与一样no inatter+ 疑问词=疑问词+ever(who/whorn/what/whose/which /when/where/how )无论比较级+than比更the+比较级the+比较级越越 这章主要掌握if引导的条件状语从句if意为“如果；假如；倘若”，引导条件状语从句，既可放在主句前面，也可放在主句后面。若if条件句放在句首，从句后面要加逗号与主句隔开。eg：If

16、you go there,Ill go,too. 如果你去那儿，我也会去。My mother will take me to the park if she is free. 我妈妈如果有空，就会带我去公园。 时态运用if引导的条件状语从句要遵循“主将从现”的规则。即if引导的条件状语从句，主句用一般将来时（will）,从句用一般现在时。 主句是一般将来时。eg：If he comes, he will bring his violin. 他如果来，就会带来他的小提琴。 主句谓语可以含有情态动词may/might/can/ must/should 等。eg：If the traffic lig

17、hts are red, you must stop and wait. 如果红绿灯亮了，你必须停下来等待。If you want to lose weight, you must eat less meat. 你如果想减肥，必须少吃肉。 主句谓语中也可以用had better(not)do提建议eg：If you want to lose weight, you had better take some exercise.如果你想减肥，你最好做些运动。 主句也可以是祈使句。eg：If you are not strong enough, please dont take part in su

18、ch an activity.你如果不够强壮，请不要参加这种活动。 if的反义词：if.not.=unless,意思是：“如果不，除非”；可以互换！eg：I wont go there unless I hear from you. 除非你给我回信，我就不去那里了。=I wont go there if I dont hear from you. 如果你没有给我回信，我就不去那里了。 句型转换 有if引导的条件状语从句的复合句中，当主句和从句的主语均为you时，可转换为“祈使句，and+简单句”或“祈使句，or(否则)+简单句”eg：If you study hard, youll pass

19、the exam easily. 如果你努力学习，你很容易通过考试。= Study hard, and youll pass the exam easily. 努力学习，你将很容易通过考试。If you dont hurry up, you will be late again. 如果你不快点，你又会迟到的。=Hurry up,or you will be late again. 快点，不然你又要迟到了。 借助介词with 或without来转换。eg：If you help me, Ill finish my job soon. 如果你帮我，我将很快完成我的工作。With your help

20、, Ill finish my job soon. 有你的帮助，我很快就能完成我的工作。If there is no water, fish will die. 如果没有水，鱼将会死。Fish will die without water. 鱼没有水就会死。 注意事项 在if引导的条件状语从句中，当主句是一般将来时时，不能够使用be going to结构，而要用will。eg：Ill help you with your English if I am free tomorrow.如果明天我有空，我会帮你学英语。 在if引导的条件状语从句中不能够使用some，而要用any。eg：If you

21、have any questions to ask, please come to my office.如果你有问题要问的话，请到我办公室来。 if引导的条件状语从句和if引导的宾语从句的区分 if在句中的含义不同：If在宾语从句中翻译为“是否”；If在条件状语从句中翻译为“如果”。eg：I want to know if he is a teacher. 我想知道他是不是老师。(“是否”)Ill go to see you if I am free next week. 如果我下周有空，我就去看你。(“如果”) if在从句中的位置不同：If引导的宾语从句放在主句之后；而if引导的状语从句可放

22、在主句之前也可放在主句之后。If引导的条件状语从句放于句首时多用逗号隔开；而if引导的宾语从句则不能。eg：I dont know if the train has arrived. 我不知道火车是否到了。I will go out tomorrow if it doesnt rain. 如果明天不下雨，我就出去。= If it doesnt rain, I will go out tomorrow.练习：1. If I_(not understand）, I will ask my teacher for help .2. If I_(copy ) your homework , I wil

23、l cheat myself .3. If she_(not get ) up early , shell miss the early bus .4. If your mother_(buy) the book for you , it will be good for your study.5. If you _(not work ) hard , you_(not pass) the exam.6. If your brother_(break) the window , he will feel very sorry for that .7. If the computer_(not

24、work), mend it please .8. If she_(not be) interested in math, she will find it very boring .9. If you_(get ) high scores, your parents will be proud of you .10. If you_(be) happy , we will be happy .答案：1. dont understand 2. copy 3. doesnt get 4. buys 5. dont work/wont pass6. breaks 7. doesnt work 8.

25、 isnt 9. get 10. are2、should的用法should为情态动词，意为应该;应当，后接动词原形，无人称和数的变化。常用来表示征询意见、建议、劝告、要求和义务等。 should意为“应该”，表示劝告或建议。eg：You should stop playing computer games. 你应该停止玩电脑游戏。 should表示要求或命令。eg：You shouldnt fight with your classmate. 你不应该和同学打架。 should表示预测或可能。eg：His schoolbag should be in the classroom. 他的书包可能

26、在教室里。 Should有时表示说话人的感情，如惊讶、愤怒、失望等。eg：Why should I go? 为什么是我去？ 基本结构： 肯定句：主语+should +动词原形+其他.eg：We should obey the traffic rules. 我们应该遵守交通规则。 否定句：主语+shouldnt +动词原形+其他eg：You shouldnt smoke in the hospital. 你不应该在医院里吸烟。 一般疑问句：Should+主语+动词原形+其他？eg：Should you come here tonight? 今晚你应该来这里吗？3、have a class mee

27、tinghave a class meeting意为“开班会”，其中meeting用作可数名词，意为“会议”。eg：The students are talking about when to have(a class party/ a class meeting/a birthday party) 学生们正在讨论什么时候举行(班级聚会/班会/生日聚会) meet动词，意为“遇见；与会面”。eg：Dont go to meet friends online alone. 不要单独去见网友。 meeting构成的短语：attend a meeting 参加会议；at a meeting在会议上；

28、call a meeting召开会议；hold a meeting举行会议；have a parents meeting 召开家长会。4、organize的用法organize( = organise)用作及物动词，意为“组织;安排”，后面的宾语一般为组织、活动、程序等。organize后面也可跟表示物品的名词，意为“筹备;准备”。名词为organization，意为“组织”；organized形容词，意为“有组织的”；organizer名词，意为“组织者”eg：What will Kate organize? 凯特将组织什么？Last month, we organized a party.

29、 上个月我们组织了一次聚会。Can you help to organize food? 你能帮忙整理食物吗？5、half的用法half作限定词，意为“一半的，半数”。half (of)后接名词时，名词前应有the,this,my等词修饰，这时of可省略。“half (of) +名词”作主语时，如果名词是可数名词复数形式，谓语动词用复数形式；如果名词是不可数名词或单数名词，谓语动词用单数形式。eg：Half (of) the books are storybooks. 这些书有一半是故事书。Half (of) her money was stolen. 她一半的钱被偷走了。If we have

30、 it today, half the class wont come.如果我们今天举行，班里一半的学生将不会 来。 half of后也可接代词，这时of不能省略。eg：Half of them enjoyed the party last night. 他们中有一半的人在昨晚的聚会上玩得很开 half还可用作名词，意为“一半；半”。其复数形式为halves。eg：one hour and a half = one and a half hours 一个半小时6、集体名词集体名词表示由若干个体组成的集合体，它可以表达单数意义，也可以表达复数意义，常见的集体名词：class family peo

31、ple police team；具体情况如下： 当集体名词强调组成该集体的各个成员时，表示复数意义(但无词形变化，即用其本身表达复数)。eg：All the class are very interested in English. 班里所有的学生都对英语很感兴趣。 当集体名词表示一个单位(即表达一个不可分割的整体）时，它表示单数意义，作主语时, 谓语动词用第三人称单数形式。eg：Our class is on the fifth floor. 我们班在五楼。7、order的用法order作及物动词,意为“订购;订货;点菜”。此处为order sth. from.结构，意为“从订购某物”。eg

32、：No, lets order food from a restaurant. 不，咱们从饭店订餐吧。I ordered a sandwich. 我点了一个三明治。I ordered some clothes from that shop. 我从那家商店订购了些衣服。 order作动词，还可意为“命令；要求”。order sb. to do sth.意为命令某人做某事”。eg：The officer ordered them to act at once. 军官命令他们立即行动。 order作不可数名词，意为“次序；顺序；点菜。eg：The names are listed in alphab

33、etical/lfbetkl/ order. 姓名是按字母顺序排列的。May I take/have your order? 可以点菜了吗？ order可构成in order to或in order that.结构，意为“为了”。eg：She gets up early in order to catch the early bus.= She gets up early in order that she can catch the early bus.8、ask sb. (not) to do sth.ask sb. to do sth.意为“要求某人做某事”,其否定形式为ask sb.

34、not to do sth.，意为“要求某人不要做某事”。eg：If we ask people to bring food, theyll just bring potato chips and chocolate because theyll be too lazy to cook. 如果我们让大家带食物来，他们将只会带炸薯条和巧克力，因为他们太懒了，不愿意做饭。Our teacher asks us to read every day. 我们的老师要求我们每天阅读。9、upset的用法upset形容词,意为“难过;失望;沮丧”，通常不用在名词前作定语。be upset with sb.意

35、为“生某人的气；对某人感到不快”。eg：She was really upset about the way her friend treated her.她朋友那样对她，她真的很难过。If I go to the party, they will be upset. 如果我去参加聚会，他们将会很失望。She is still upset with him. 她还在生他的气。10、英语中出行方式的表达 take+ a/the+交通工具名称eg：I often take a bus to school. 我经常乘公共汽车去上学。If I take a taxi, it will be too e

36、xpensive. 如果我乘出租车去,那将会太昂贵。 by+交通工具名称eg：I go to school by bus. 我乘公共汽车去上学。 动词+ to +地点名词，常用的动词有walk，ride，drive，fly等。eg：He wants to drive to the supermarket 他想开车去超市。 in/on+限定词+交通工具名称eg：She goes to school on her bike. 她骑自行车去上学。11、advice与adviseadvice意为“建议”；“劝告”；“忠告”等，是不可数名词，表示数量时常借助于piece或some(些)等词；give s

37、b. some advice “给某人些建议”；give sb. some advice on.意为“在某方面给某人一些建议”。get advice from 意为“从得到建议”。eg：a piece of advice 一条建议two pieces of advice 两条建议Please give me some advice. 请给我一些建议。Can you give me some advice please? 请你给我一些建议好吗？My father gave me some good advice. 我父亲给了我一些好的建议。He gave me some advice on ho

38、w to learn English well.他在怎样学好英语方面给了我一些建议。You can get advice from your parents. 你（们）可以从你（们）父母那儿得到建议。 advise意为“建议”，通常为及物动词，若其后的宾语是动词，通常应是动名词，而不能是不定式。eg：I advise waiting till the right time. () 我建议等到适当的时候。I advise to wait till the right time. ()注意：advise之后不能直接跟不定式，但可接不定式的复合结构(advise sb. to do sth.)eg：

39、He advised us to sell the house. 他建议我们把房子卖了。The doctor advised me to stop smoking. 医生建议我戒烟。注意：advise后接不定式复合结构时的被动语态形式不要与上面第一个句型混为一谈。eg：主动式：He advised us to sell the house.被动式：We were advised to sell the house.比较错误句型：We advised to sell the house.（误） advise sb. about/on. 意为“关于给某人忠告/建议”。eg：The teachers

40、 advise us about study. 就学习问题老师们给我们提出了建议。 advise sb. (not) to do sth. 意为“劝告某人(不要)做某事”。eg：Our teacher advised us to make weekly plans.老师建议我们制订周计划。The doctor advises children not to eat too much junk food.医生建议孩子们不要吃太多垃圾食品。 advise doing sth. 意为“劝告/建议做某事”。eg：I advised buying your tickets as early as pos

41、sible. 我建议你尽早购票。B部分1、keepto oneselfkeepto oneself意为“保守秘密;把问题/烦恼埋在心底”，是固定搭配。eg：If people have problems, they should keep them to themselves.如果人们有问题，他们应该把这些问题埋在心底。Please keep it to yourself. 请你保守秘密。The teenagers like to keep their problems to themselves.青少年喜欢把他们的问题埋在心底。Keep的相关短语：Keep out 不进入Keep(on) d

42、oing sth. 继续做某事Keep away from 远离Keep up with 了解；继续做Keep sb. from doing sth. 阻止某人干某事2、travel的用法travel作不及物动词，意为“旅行；游历”；travel around the world 意为“环游世界”，相当于 travel all over the world，travel to.意为“到.旅行”。travel还可用作名词，意为“旅行;旅游”。eg：We want to travel across the desert. 我们想横穿沙漠旅行。Id like to travel to Shangha

43、i. 我想去上海旅行。Spring is a good season for travel. 春天是旅行的好季节。巧记：长途陆路用journey，短途短期用trip，观光巡演用tour，时长路远用travel1、 normal的用法normal形容词，意为“正常的；一般的”，可在句中作表语或定语。normal还可用作名词，意为“正常”。normally副词，意为正常地，通常”。eg：Its normal to feel nervous before an exam. 考试之前觉得紧张是正常的。“Problems and worries are normal in life.” says Lau

44、ra.“在生活中问题和烦恼是正常的”劳拉说。We normally plant trees in spring. 我们通常春天植树。The work took longer than normal. 这项工作超出了平常所需的时间。4、unless的用法unless连词，意为“除非；如果不”，引导条件状语从句，相当于ifnot。当主句用一般将来时或祈使句时,unless引导的从句常用一般现在时。eg：Unless we talk to someone, well certainly feel worse.我们如果不与人聊聊，肯定会感觉更糟。Unless something unexpected

45、happens, see you tomorrow.如果不出意外，我明天将去看你。Youll be late unless you hurry up. 如果你不快点儿，你将会迟到。I wont go there unless I hear from you. 除非你给我回信，我就不去那里了。=I wont go there if I dont hear from you. 如果你没有给我回信，我就不去那里了。5、understanding的用法understand动词, 意为“理解；明白”。understanding可作形容词，意为“善解人意的; 体谅人的”。其比较级为more underst

46、anding，最高级为most understanding。understanding还可用作名词，意为“理解”。eg：In the end, she talked to her parents and they were really understanding.最后，她跟父母谈了(这件事)，他们非常理解。Luckily, I have a very understanding boss. 幸运的是，我有一位非常善解人意的老板。Your understanding is the greatest help. 你的理解是最大的帮助。Im trying my best to understand

47、 her meaning. 我正尽最大努力理解她的意思。6、certainly的用法certainly副词，意为“当然；肯定”，用于连系动词be、助动词或情态动词之后，实义动词之前。eg：He can certainly give you some help. 他肯定能给你一些帮助。 certainly可单独使用，用在答语中表示“当然可以，没问题，可以与sure/of course/ all right 等换用。eg：-Can you tell me the way to the hospital? 你能告诉我去医院的路吗？-Certainly. 当然可以。7、mistake的用法mistak

48、e可数名词，意为“错误；失误”,其复数形式为mistakes, 常用短语：make mistakes/make a mistake (in) “(在方面)犯错误”, by mistake “错误地;无意中”。mistake用作动词时，意为“弄错；误解”。常用短语：mistakefor意为 “错把当作”。eg：You should be more careful so that you won make mistakes.你应该更加小心，那样才不会犯错误。He mistook me for my twin brother. 他错把我当成了我的双胞胎哥哥。8、careless的用法careless

49、形容词，意为“粗心的；不小心的”。其反义词为careful，意为“小心的；细致的;精心的;慎重的”。eg：Her dad said he sometimes made careless mistakes himself.她爸爸说，他自己有时也犯粗心的错误。He is a careless girl. 他是一个粗心的女孩儿。9、forget与rememberremember动词，意为“记得;记住”，其反义词为forget“忘记;遗忘”。forget to do sth.忘记要去做某事（还未做）forget doing sth.忘记做过某事（已做过）remember to do sth.记着要去做

50、某事（还未做）remember doing sth.记着做过某事（已做过）eg：I will always remember to share my problems in the future!我将永远牢记以后与别人分担我的问题！I remember telling you about it. 我记得和你说过这件事。I forget to do my homework last night. 我昨天晚上忘记做作业了。I forget closing the door. 我忘记把门关了。10、It is best (not) to do sth.It is best (not) to do s

51、th.意为“最好(不)做某事”。it为形式主语，动词不定式短语为真正的主语。相当于You d better (not) do sth.。eg：It is best not to run away from our problems. 最好不要逃避我们的问题。It is best to speak English every day. (你)最好每天说英语。=Youd better speak English every day.11、solve 与 answersolve为及物动词，意为“解决;解答”。eg：Can you help me solve the problem? 你能帮我解决这个

52、问题吗？solve“解决；解答” 常与problem搭配使用，表示解决问题，此问题难度较大answer“回答；回复”，常与question搭配使用，表示回答问题，此问题难度较小eg：Money cant solve all the problems. 钱不能解决所有问题。Who can answer my question? 谁能回答我的问题？12、trust的用法trust此处用作动词，意为“信任；相信”。常见用法有： trust sb. 信任某人eg：I just dont trust that man. 我就是不信任那个人。 trust sb. (not) to do sth. 相信某人

53、(不)会做 某事eg：You can trust me not to tell anyone. 你可以相信我不会跟任何人讲。He thinks the first step is to find someone you trust to talk to.他认为(解决问题的)第一步是找个你信任的人向其倾诉。 trust sth. 相信某事eg：I trust her judgement/ddmnt/. 我相信她的判断力。13、experienceexperience此处用作不可数名词，意为“经验”。experience还可用作可数名词，意为“经历”。eg：Students often forge

54、t that their parents have more experience学生们经常忘记他们的父母拥有更多的经验Our English teacher has a lot of teaching experience.我们的英语老师有丰富的教学经验。Tom likes traveling. He has many unusual experiences.汤姆喜欢旅游，他有许多不寻常的经历。14、else与otherelse副词，意为“别的；其他的”，常位于疑问词或不定代词之后。eg：What else can you see in the picture? 在图片中你还能看到什么？Is

55、 anyone else going to the party? 还有其他人参加聚会吗？else副词，意为“别的；其他的”。修饰疑问词或不定代词，置于这些词之后other形容词，意为“其余的；另外的” 修饰名词，且位于名词之前What else can you see in the room? 你在房间里还能看到别的什么？What other things can you see in the room. 你在房间里还能看见别的什么东西？15、固定搭配1. ask sb. to do sth. 要求某人做某事2. give sb. sth. 给某人某物1. tell sb. to do sth. 告诉某人做某事2. tooto do sth. 太而不能做某事3. be halfway to doing sth. 完成某事的一半/部分4. Its best (not) to do sth. 最好(不)做某事。5. need to do sth. 需要做某事6. advise sb. to do sth. 劝告某人做某事7. be afraid to do sth. 不敢做某事