人教版八年级上英语全部知识点、语法

网上有关“人教版八年级上英语全部知识点、语法”话题很是火热，小编也是针对人教版八年级上英语全部知识点、语法寻找了一些与之相关的一些信息进行分析，如果能碰巧解决你现在面临的问题，希望能够帮助到您。

1.形容词和副词的比较级

(1) 一般在形容词或副词后+er

older taller longer stronger, etc

(2) 多音节词前+more

more interesting, etc.

(3) 双写最后一个字母,再+er

bigger fatter, etc.

(4) 把y变i,再+er

heavier, earlier

(5) 不规则变化：

well-better, much/many-more, etc.

2.祈使句：

Sit down please

Don’t sit down, please.

3. there be 结构

肯定句： There is a …

There are …

一般疑问句:Is there …? Yes, there is./ No, there isn’t.

Are there…? Yes, there are. /No, there aren’t.

否定句： There isn’t …. There aren’t….

4.一般现在时：通常用 “usually, often, every day, sometimes”.

形式：

肯定句：

I go to school on foot every day.

She goes to school on foot every day.

5.现在进行时：形式： be + verb +ing

eg: I am(not) doing my homework.

You/We/They are(not) reading.

He/She/It is(not) eating.

动词 —ing 的形式

Most verbs +ing walk—walking

Verbs ending in e -e + ing come—coming

Short verbs ending in a vowel + a consonant run –running swim—swimming

6.

重点的句型：

1.How many + 复数名词 + are there ...?

此句型是一个特殊疑问句,意思是\"在.有多少.?\"多用来对可数名词的数量提问.How many 后面要接可数名词的复数形式.如：

How many apples are there on the table? 桌子上有多少个苹果?

2.. What about ...?

此句型意思是\".怎么样?\"、\".呢?\",通常用来询问情况或征求意见、看法等.其中的about是介词,后面可接名词、代词或动词等.如：

What about that computer? 那台电脑怎么样?

My gloves are red. What about theirs? 我的手套是红色的,他们的呢?

What about playing games after school? 放学后做游戏怎么样?

3. What time is it?/What\'s the time?

英语中,常用这两个句型来询问现在的时间,意思是\"什么时间了?\"或\"几点了?\"其答语一般用\"It\'s + 时间.\"其中的it指代时间,翻译时可不译,常在句尾加上please,以表示委婉的语气.如：

What time is it, please? 请问现在几点了?

-It's about a quarter past ten. 大约十点十五分.

4. What colour + be + 主语?

询问某物的颜色,一般用以What colour 开头的特殊疑问句,其答语通常用\"It\'s/They\'re + 表示颜色的形容词\".如：

-What colour is her blouse? 她的衬衫是什么颜色的?

-It's light blue. 是浅蓝色的.

5.Whose + 名词 + be + 其它?/Whose + be + 名词?

英语中常用这两个句型来询问某事物属谁所有.如：

Whose cup is that? 那是谁的杯子?

Whose are these photos? 这些照片是谁的?

6. It's time for + sth. /It's time to do sth. / It's time for sb. to do sth.

这个结构意思都是\"该做某事了\",\"到做某事的时候了\".如：

It's time for school. 到上学的时候了.

It\'s time to have supper. 该吃晚饭了.

7. 选择疑问句：选择疑问句是用or连接询问的两部分,以供选择,答案必须是完整的句子或其省略形式,不能用Yes或No回答

一般提出两种或两种以上的可能,问对方选择哪一种.其结构可用一般疑问句,也可用特殊疑问句.供选择的两部分用or连接,前者读升调,后者读降调.

e.g. Will you go there by bus or by train?

What would you like, coffee or tea?

How many pens do you have, one or two?

选择疑问句的答语必须是完整的句子或其省略式,不能答yes或no.

e.g. Do you go to school by bus or by bike?

By bus.

Which would you like, tea or coffee? Coffee.

一般疑问句演化来的选择疑问句

e.g. Is it right or wrong?

Were you or he there?

Are they reading, chatting or watching TV?

特殊疑问句演化来的选择疑问句

e.g. Which do you like better, coffee or milk?

What color is it, red, blue or yellow?

Where are you going, to the classroom or to the library?

or not构成的选择疑问句

e.g. Do you want to buy it or not?

Are you ready or not

8.另外,“to be + going + 动词不定式”这个特殊的结构可表示在未来即将要进行的动作.

例：He is going to tell me tomorrow - 他将在明天告诉我.

练习题：

There are ____ water in the bottle.（B）瓶子里有一点水

There are ____ water in the bottle.（A）瓶子里没水了

There are ____ students in the classroom.（D）教室里有几个学生

There are ____ students in the classroom（C）教室里没有学生

There are ____ apples on the trees.（D）有几个苹果长在树上

选项统一为

A、little B、a little C、few D、a few

3. Of course,every one of us_1__to make friends like food---they are useful to us,and they can help us when we are _2__need._3__you can make as many friends of this kind as possible.

(1) A.want B.will want C.wants

(2) A.in B.on C.for D.of

(3) A.And B.But C.So D.Because

答案：CAC

4.Twenty minutes later,John_1__a tree.His leg was broken,and it hurt _2__.

Mr smith _3__to mend the chair.then he_4__himself with a hammer.

(1) A.fell over B.fell from C.fell down D.fell on

(2) A.all the day B.all day C.whole day D.all days

(3) A.starts B.started C.was starting

(4) A.damaged B.knocked C.hit D.cut

答案：BABC

八年级上册英语语法要仁爱版的

学习初中英语，语法是非常关键的一部分，下面总结了初二上册英语重点语法知识，供大家参考。

一般疑问句

1.will+主语+do? Will Sarah come to visit me next Sunday?

2.there be 结构的一般疑问句：Will there + be?

Will there be fewer trees? Yes, there will. / No, there won’t

否定句构成：will + not (won’t )+do

Sarah won’t come to visit me next Sunday.

特殊疑问句

特殊疑问词+will +主语+?What will Sarah do next Sunday?

根据例句，用will 改写下列各句

例：I don’t feel well today. (be better tomorrow)

I’ll be better tomorrow.

过去进行时

过去进行时表示过去某一点时间正在进行的动作或者过去某一段时间内一直进行的动作。

1.构成

was /were + doing，例如：

I was watching TV at 9 o’clock last night.

2.过去进行时的标志词

at 8 o’clock last night, this time yesterday等。例如：

I was having lunch at home this time yesterday.

昨天的这个时候我正在吃午饭。

if引导的英语知识点

1.if引导宾语从句和状语从句的区别

if引导宾语从句时意为“是否”，从句中该用什么时态就应用什么时态。

if引导条件状语从句时意为“假如”，从句中应用一般现在时代替一般将来时。

e.g.She wanted to know if you were a teacher.

I don’t know if the letter is yours.

They’ll go boating if it is fine tomorrow.

I’ll give it to her if she comes next week.

2.if引导宾语从句时多数情况下可以与whether互换，但如果要突出“究竟是……还是不……”这层意思时，通常用whether，并在后面的加上“or not”，即一般要选择whether构成whether…or not的结构。

e.g.Please find out whether the money is his or not.

Let me know whether you can come or not.

I want to know whether you can help me or not.

重点句型及考点

1.为某人买某物buy sth. for sb. / buy sb. sth.

2.尝起来……taste + adj.

3.看起来……look+adj.

4.除了……之外什么都没有nothing…but+动词原形

5.看起来……seem+(to be)+ adj.

6.到达某地arrive in+大地点 / arrive at+小地点

7.决定去做某事decide to do sth.

8.尝试做某事try doing sth.

尽力去做某事try to do sth.

9.忘记做过某事forget doing sth.

忘记做某事forget to do sth.

10.喜欢做某事enjoy doing sth.

11.想去做某事want to do sth.

12.开始做某事start doing sth.

八年级上册英语语法

Unit 1 Sports and GamesTopic 1 Are you going to play basketball?核心词汇：cheer, team, win, join, club, dream, grow, future, against, leave, shame, baseball, hour, pretty, popular, heart, healthy, relax常用词组：cheer sb. on, quite a bit/a lot, grow up, in the future, arrive in/at, play against, leave for, the day after tomorrow, take part in, pretty well, high jump, long jump, all over the world交际用语：1. Would you like to come and cheer us on?2. Which sport do you prefer, skating or skiing?3. Do you skate much? Yes, quite a bit/a lot./No, seldom.4. What a shame!语法精粹：一般将来时（Ⅰ）Are you going to play basketball? Yes, I am./No, I am not.It’s too bad that they aren’t going to stay in Beijing for long.There is going to be a school sports meet next month.What are you going to do tomorrow morning? I’m going to play soccer. Topic 2 Would you mind teaching me?核心词汇：ill, mind, practice, smoke, somewhere, careless, chance, fight, angry, serve, ready, important, competition, invent, college, even, score, basket, throw, follow, over, century, however, tired, active, mile, fresh, instead, build, become, coach, feeling常用词组：fall ill, be glad to, say sorry to, be angry with sb., turn down/up, be important to sb., more and more, instead of, build up, have fun doing sth.交际用语：1. – Michael, could you please do me a favor? – Sure. What is it?2. – Will you join us? – I’d like be glad to.3. – Will you join us? – I’d be glad to.4. – Would you mind teaching me? – Not at all. You can do it! Let’s go and practice.语法精粹：一般将来时（Ⅱ）I’ll tell them.I’ll be there soon.I’ll go somewhere else.I’ll play it more quietly. Topic 3 Beijing will host the 2008 Olympics.核心词汇：taxi, foreign, e-mail, address, from, fill, reason, maybe, perhaps, coffee, shall, pick, gold, winner, visitor, improve, environment, ourselves, modern, fast, ring, symbol常用词组：fill out, Roast Duck Restaurant, make friends with sb., make it, the People’s Republic of China, take part in, stand for, at least, be fond of交际用语：1. – Hi, can I help you? – Yes, please. I want to join the Ren’ai English Club.2. – Hello, is that…? – Speaking.3. What will the weather be like this weekend?4. What will Beijing be like in 2008?语法精粹：一般将来时态（Ⅲ）Beijing will host the 2008 Olympics.I think I’ll be free on Sunday.Why won’t Michael go to plant trees this Saturday?What will Beijing be like in 2008? Unit 2 Keeping Healthy Topic 1 How are you feeling today?核心词汇：toothache, dentist, cough, fever, flu, headache, lift, pale, terrible, medicine, brush, tooth, Internet, X-ray, serious, sick, ice cream, plenty常用词组：have a cold, go to see a doctor, take a rest, have a fever, at night, had better (do), take some medicine, day and night, lie down, look after, check over, not…until交际用语：1. – What’s wrong with you? – I have a fever/a toothache/a sore throat/the flu.2. You look pale.3.– How are you feeling today? – I feel terrible/better.4. I’m sorry to hear that.语法精粹：表建议的情态动词You should go to see a doctor.Michael shouldn’t move his leg too much.You’d better go to see a doctor.You’d better not go to school today. Topic 2 I must ask him to give up smoking.核心词汇：health, tonight, without, article, cause, cancer, litter, habit, energy, necessary, enough, disease, body, illness, empty, stomach, human, through, sour, tidy, sweep, than, wealth, choose, sandwich, watermelon, sausage, tomato, beef, cabbage, strawberry常用词组：stay up late, be good/bad for, do morning exercises, relax sb. give up, throw about, keep sb. active, get a headache, get into, keep…clean/fresh, more than, too little/too much food交际用语：1. What’s up/wrong?2. Is going to bed early good or bad for your health? It’s good.3. You must not take pets to school with you.4. You may get a headache when you work too hard.语法精粹：1. 选择疑问句Is going to bed early good for or bad for your health?2. 情态动词can, may, must, shouldI must ask him to give up smoking. Topic 3 What should we do to fight SARS?核心词汇：hurry, spread, among, agree, examine, patient, care, brave, wife, talk, duty, save, myself, hate, herself, itself, themselves, yourselves常用词组：hurry up, go ahead, do one’s best, all the time, keep away, examine the patient, get through, have a message take care of, take an active part in, care for, teach oneself, enjoy oneself, take some Chinese medicine, be afraid of交际用语：1. May I ask you some questions, Dr. Li? Sure, go ahead.2. Please tell my father to take care of himself.3. He cared for the patents day and night.4. Must we keep the windows open all the time? No, we don’t have to/needn’t.5. Extension 6226, please.语法精粹：1. 表示“必要”的情态动词have to, must/must not2．反身代词myself, yourself, himself Unit 3 Our Hobbies Topic 1 I love collecting stamps.核心词汇：collect, hobby, VCD, share, pop, pond, nobody, paint, such, friendship, knowledge, whether, lovely, ugly, stupid常用词组：collecting stamps, used to do sth., photos of famous stars, prfer/love/enjoy doing sth., be interested in, walk a pet dog, go fishing, do some outdoor activities, watch a movie, know little about during summer vacations, keep pets, such as, daily work交际用语：1. Collecting stamps must be great fun!2. I am interested in playing basketball.3. What things do you love collecting?语法精粹：used to do sth. 的用法I used to collect stamps. I didn’t use to play soccer.Did you use to go swimming? Yes, I did./ No, I didn’t.Where did you use to go swimming? Topic 2 It sounds great!核心词汇：pity, lend, pay, simple, member, continue, birth, weight, height, banana常用词组：go to the concert, take English lessons, play the violin/the drums/the piano, in one’s free/spare time, pop music, folk music, classical music, one of the most famous rock bands, set up, be famous for交际用语：1. What kind of music do you like? It’s hard to say.2. Do you like classical music? No, I don’t like it at all.3. It’s not my favorite, but I don’t mind it.语法精粹：Exclamation（感叹句）It sounds great!What sweet music!How exciting! Topic 3 What were you doing this time yesterday?核心词汇：pleasant, handsome, boring, sad, laugh, church, factory, dish常用词组：this time yesterday, take a shower, answer the phone, do some washing, agree with sb., nothing serious, listen to the radio, make faces, too…to交际用语：1. I called you but nobody answered the phone.2. Hold the line, please.3. I think so./I don’t agree with you.4. Don’t do that again, Bill.语法精粹：过去进行时（Ⅰ）I was doing some cleaning this time yesterday.Were you playing on the computer? Yes, I was./No, I wasn’t.What were you doing this time yesterday? Unit 4 Our World Topic 1 We share the world with plants and animals.核心词汇：sky, nature, cow, sheep, goose, joy, rose, snake, fox, feed, cover, earth, surface, meter, forest, control, wood, rubber, protect, fact, lake, ocean, drop, bear, wolf常用词组：think about, in the countryside, be important to, share…with, feed on, thousands and thousands of, in fact, make up, save every drop of water交际用语：1. The dogs are the bravest animal on the farm.2. Why do you think so? Because animals are our friends. They give us joy.3. As we know, plants and animal are important to us.4. We share the world with them.语法精粹：形容词的比较级和最高级用法。 Topic 2 I am sure there are no UFOs.核心词汇：robot, scientist, appear, situation, repair, machine, mend, lazy, toward, planet, balloon, seem, real, list, order常用词组：take the place of, instead of, in danger, mistake...for…, seem to, call for, wake sb. up, in alphabetical order, pay attention to, begin with, and so on, plug in交际用语：1. Could you tell me something about robots? Of course.2. What can robots do for us?3. Robots can take the place of humans to do hard and boring work in some work situations.4. I’m sure there are no UFOs.5. Are you sure you plugged it in? Yes, I’m sure./No, I’m not sure.语法精粹：1. 过去进行时（Ⅱ）2. weather, if引导的宾语从句1. be sure 句型Last night, while Jim was sleeping, he saw a UFO flying over his head.I’m not sure whether if robots will make humans lose their jobs.I’m sure robots will make humans lose their jobs. Topic 3 The builders used live models, didn’t they?核心词汇：remain, government, modern, wonder, live, treasure, underground, palace, king, ancient, stone, weigh, ton regard常用词组：pull down, be worn out, be mad up of, join…together, regard…as交际用语：1. What happened?2. People pulled lots of them down in the 1960s.3. I see. It’s really too bad.4. It took about 100000 people over 20 years to build it.5. How long wide high…? It’s …语法精粹：反意疑问句There are many old city walls in Beijing, aren’t there? No, there aren’t.You visited Emperor Qin’s Terra Cotta Warriors last week, didn’t you? Yes, I did.The builders used live models, didn’t they? Yes, they did.

Unit 1 How often do you exercise?

Grammar: 特殊疑问句：wh-questions: what, who, where, when, which, whose, why, whom等。

特殊疑问句的构成及用法：

结构：特殊疑问词+ 一般疑问句， 即：特殊疑问词+be/助动词/情态动词+主语+谓语/表语（+其他）

疑问代词：

1) Who:谁。做主语，用来指人 Who is the boy under the tree?

2）Whom 谁，做宾语，用来指人 Whom are you writing to?

3) Whose 谁的，用来指所属关系，如果做定语，一般后接名词 Whose pen is this?

4) Which 哪个，哪些，用来指对人或物在一定范围之内进行选择 Which grils will in the sports meeting? Which pen is Lily’s?

5)What什么，通常指物，也可指人，一般用在没有指出范围的情况下 What can you see in the picture? What are you doing now?

疑问副词：

When:何时，询问时间 When will she come back?

Where何地，询问地点， Where do you come from?

Why为什么，询问原因， Why are you late for school?

How 如何，询问手段、方式、工具以及程度等 How do you usually go to school?

How old多大，询问年龄，How old is Jim’s little brother?

How many/much多少，询问数量 How many birds are there in the tree?

How far多远，询问距离， How far is it form your home to school?

How long多长，多久，询问时间的长度或距离 How long will you stay in Beijing?

How often多长时间按一次，询问频率 How often do you go to see your grandparents?

How soon多久，询问时间 How soon will you come back?

频率副词：表示动作发生的频率，never, sometimes, often, usually, always.

Unit 2 What’s the matter with you?

Grammar:

1. 用have?来描述身体不适 have/have got a +疾病名字；得了……病

2.情态动词should,情态动词should,can, may, must没有人称和时态的变化，后接动词原形

Unit 3 What are you doing for vacation?

Grammar:现在进行时表将来 一般将来时

表示将要做某事或计划打算做某事要用到句型“be+doing”其中be是助动词，它有人称和单复数的变化。Be: am, is, are. be + v.ing是现在进行时的形式，但用于表示将来。用进行时表将来，常用于表示即将来临的未来预定要做的事情，一般指个人计划要做的事。用于此情况的动词一般是表示位置转移的动词，如，go, come, leave, start, arrive, move等。

一．肯定句中，结构为“be+doing.”

I am going shopping this afternoon.

二．否定句是在be之后加not. I’m not going to shopping this afternoon.

三．一般疑问句是将be置于句首 Are you going shopping this afternoon?—Yes, I am/ we are. No, I’m not./ We aren’t.

四．特殊疑问句“疑问词+一般疑问句语序。”

What are you doing for vacation? When is he going camping?

Who are you going there with? Where is she going?

Unit 4 How do you get to school?

Grammar: How引导的特殊疑问句：是指以How, how far, how long, how old,how many, how much等词开头的疑问句。

How does he get to shool?---- He takes the train to get to shool.

How long does it take to walk? ----It takes about 35 minutes to walk.

How far is it from your home to school? It’s four miles from my home to school.

How old is he now? She is twelve years old now.

How many storybooks do you have? I have five storybooks.

How much is this coat? This coat is 200 yuan.

特殊疑问句的简略结构：how about…?+ 名词或动词-ing形式，用于提出建议、请求或征求意见、询问消息等。如：How about playing tennis?

Unit 5 Can you come to my party?

Grammar:情态动词can及邀请句式及其问答

情态动词can的用法：

Can 是最长用的情态动词，其后跟动词原形，can的否定形式为cannot，can’t.

can表“能力”，意思是：能，会 I can paly basketball,but I can’t swim.

can表示能力时可和be able to 互换，be able to有更多的时态，常被用来表示can所 不能表示的将来或完成的概念。E.g. They will be able to run this machine on their own in three months.

表示“可能性”，意思是：可以，可能。That big cinema can seat 5,000 people.

表示允许，意思是可以能够 You can have the book when I have finished it.

表示“惊讶、不相信等（用于疑问句、否定句或感叹句中”。意思是“会、可能。”

This can’t be true. Can it be true?

如何发出、接受和谢绝别人的邀请

表达邀请的常用句型：

Can you come to…?

Could you come to…?

Would you like to come to…?

Do you want to come to…?

接受邀请的常用句型：

Sure. Certainly. OK. I’d love to.

谢绝邀请的常用句型：

I’m sorry, I can’t. I have to…

I’m afraid I can’t. I have to…

I don’t think I can. I have to…

Unit 6 I’m more outgoing than my sister.

Grammar:形容词的比较级

规则变化、不规则变化（课本P93）

than 是比较级中最常见的标志词，意思是“比”。用于引出比较的对象。1.He draws better than me.2.You’re older than I am. You are older than me.

形容词比较级前，有时可以用much,far, a little,a bit, even, three times等词来修饰。Much 和far表示“……得多”,much better好得多，a little, a bit表示稍微，一些，一点。a little shorter, 稍微矮点；even表示“甚至，更加，还要……”even bigger还要大些，three times表示 “…三倍”，如three times bigger than 比……大三倍

Very绝不可以用来修饰比较级，very,so,too, quite?修饰原级

Unit 7 How do you make banana milk shake?

Grammar: 可数名词与不可数名词

一．可数名词

英语中的物质名词大体上可分为可数名词和不可数名词。可数名词指物体的数量可数。其单数形式可在名词前加a或an,表示一个，如a pear. 其负数形式要在词尾加-s,或-es（特殊情况除外），如two bananas, three tomatoes. Many many apples a few students few bags

二．不可数名词

1.不可数名词指物体的数量不可数。不可数名词没有单复数之分，也不能在词前直接加冠词a 或an.表示不可数名词的数量时可在不可数名词前加相应的由量词构成的短语。如a bag of… 2.常见的量词短语有：

a piece of… a cup of… a teaspoon of… a bottle of…

3.不可数名词还可以用下面的词表示数量：much much rain a little little

4.既可以修饰不可数名词又可以修饰不可数名词的词有：

Lots of= a lot of许多，大量 some一些（用于肯定句）any一些（用于否定句和一般疑问句）

Unit 8 How was your school trip?

Grammar:

一般过去时：指在过去某一时间内发生的动作或存在的状态，常和表示过去意义的时间状语连用。如：yesterday, last year(week,month…),two years ago, in2006等。有时也可用when,after,before, as soon as引导的时间状语从句。该时态在句中的体现是谓语动词用过去式。谓语be动词→was/were 否定：wasn’t /weren’t

Be动词句型

一般疑问句：was/were +主语…

特殊疑问句：疑问词+was/were+主语

陈述句：主语+was/were+…(肯定句) 否定句：主语+wasn’t/weren’t+…

行为动词句型（当句中的动词为行为动词时，要借助动词did构成一般疑问句和否定句）

肯定式：主语+动词过去式

否定式：主语+didn’t+动词原形

一般疑问句：Did +主语+动词原形

特殊疑问句：Did+主语+动词原形

Unit 9 When was he born?

Grammar: 一般过去时的特殊疑问句

一般过去时的特殊疑问句的变法同一般现在时一样，不同之处在于须将be动词或助动词改为过去时态，即“特殊疑问词+were或was(第三人称单数)+主语+（表语）+其他成分”或“特殊疑问词+助动词did+主语+实义动词+其他成分。”

以when引导的特殊疑问句，对某人的出生年月进行提问，句型是：

When was/were…born? … was/were born in +时间

When was David beckham born? 大卫.贝克汉姆是什么时候出生的？He was born in 1975.

二．以how long 引导的特殊疑问句，对表示某一短时间的状语进行提问。句型是：

How long did + 主语+动词？

How long did Charles Smith hiccup? He hiccupped for 69 years and 5 months.

三．When did he start hiccupping? 他什么时候开始打嗝？When +did+主语+动词？

Unit 10 I’m going to be a basketball player.

Grammar:一般将来时

表示将来某个时间要发生的动作或存在的状态，也表示将来经常或反复发生的动作，常与表示将来的时间状语连用。

1. be going to + 动词原形 What are you going to do next Sunday?

2. will/shall + 动词原形 I will go to my hometown next week.

3.be +v.ing The Greens are moving to another city the day after tomorrow.

4. be +动词不定式 You are to be back by 10 o’clock.

5. be + about + 动词不定式 The meeting is about to begin.

Unit 11 Could you please clean your room?

Grammar:情态动词

情态动词，表示说话者对某一动作的看法和态度，包括可能、怀疑、允许、愿望、必要、猜测等。Can(能、会),may( 可以),must( 必须、一定)等。

情态动词的特点：(1)情态动词有一定词义，但不能单独作谓语，必须和另一个动词原形一起构成谓语，且没有人称和数的变化。1. I can speak English. 2. She must be a teacher. 3. We may go home now.

(2)变否定句时，直接在情态动词后面加not,无需加助动词。He can’t play the guitar well.

He can’t answer the question. You mustn’t be late.

(3)含有情态动词的句子变一般疑问句时，须将情态动词提前。Can you help me? Must I go there at once?

(4)can 可表示能力、允许、可能性、怀疑猜测，意为“能，会，可以。”can’t, 意为“不能，不会，不可以。”，还有“不可能”之意。

--Can you drive? – Sorry, I can’t. It can’t be true.

(5)can 也可表示请求与邀请

Can you please sweep the floor?

Unit12 What’s the best radio station?

Grammar:形容词/副词的最高级，用于三者或三者以上的人或事物之间的比较，表示在一群人或事物中，其中一个 “最……”见课本p93语法

the +最高级 She is the tallest of all her classmates.

最高级可被序数词以及much, by far,nearly,almost, by no means, not quite,not really, nothing like等修饰。This hat is by far the biggest.

表示最高程度的形容词，excellent, extreme, prefect等没有最高级也不能用比较级。He is an excellent teacher.

形容词最高级间修饰做表语或介词并与的名词代词是，被修饰的词往往省略。

He is the youngest (boy) in his class.

Who/Which +be+最高级，A,B,or C? Who is the most useful, a bicycle, a motorcycle,or a car?

the +序数词+最高级 He is the second tallest student in our class.

One of the +最高级+复数名词 The Yellow River is one of the longest rivers in China.

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