11-1-2情态动词及特殊疑问句

Lesson 2

一，情态动词

1，情态动词：表达说话人的情感状态。

2，情态动词不能做谓语

3，情态动词后一定要用动词原形+

4，情态动词无人称和数量的变化

5，含有情态动词的句子变否定句：在情态动词后加not.

6，含有情态动词的句子变一般疑问句：将情态动词提到主语前。

7,情态动词分为：can must need should had better

A.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.

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

2.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.

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

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

5.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?

B，must表“必须”，否定形式mustn’t表“不许”，一般疑问句的否定回答为needn’t.

如：Must he go to bed now? ----Y es, he must. / No, he needn’t.

C, need表“需要”，(1)做情态动词时只能用于否定句和疑问句，一般疑问句的肯定回答为must。

（2做实义动词时，后接名词或者to+动词原形

D, should 表“应该”，否定形式shouldn’t

E，had better表“最好”，否定形式had better not

二，特殊疑问句：A,由特殊疑问词引导:

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 girls will be in the sports meeting?

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?

疑问副词：

1)When:何时，询问时间When will she come back?

2)Where何地，询问地点，Where do you come from?

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

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

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

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

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

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

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

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

B，句末降调

C, 不用yes/ no作答，使用完全答复

D，结构：(1)特殊疑问词+ 一般疑问句，(2), 特殊疑问词作主语+陈述句语序

如：（1）What do you like?（2）Who read books every day?

形容词比较级与最高级的不规则变化：

（1）下列单、双音节形容词只能用more和most构成比较级和最高级

练习：

( ) 1. My grandpa exercises _____ ,so he is very healthy.

A. three times a week

B. three time a week

C. three times weeks

D. third time a week

( ) 2. ----Peter, ______ do you visit your grandparents?

----Twice a month.

A. How long

B. how soon

C. how far

D. how often

( ) 3. How often ______ she eat vegetables?

A. do

B. does

C. did

D. do

( ) 4. ----Can you understand me? ----Sorry, I can ____ hear you clearly.

A. almost

B. ever

C. hardly

D. nearly

( ) 5. How many _____ do you have?

A. tooth

B. teeth

C. tooths

D. toothes

( ) 6. Y ou should ____ some hot tea.

A. drinks

B. drinking

C. drink

D. to drink

( ) 7. ----______ is he staying?

----Two weeks.

A. How often

B. How long

C. How many

D. How

( ) 8. Of the two students, Masha is ______ one, I think you can find her easily.

A. tallest

B. the taller

C. the tallest

D. taller

( ) 9. A horse is ______ than a dog.

A. much heavy

B. more heavier

C. much heavier

D. heavy

( ) 10. Which do you like ____ ,tea or coffee?

A. well

B. better

C. best

D. most

( ) 11. ----____ was the weather? ---- It’s snowy.

A. What

B. What’s

C.How

D.How’s

( ) 12. How many classes ______ in your school last year?

A. are there

B. is there

C. was there

D. were there

( ) 13. ---- _____ were you born? -----I was born in Jinan on March 6th, 1991.

A. When

B. What time

C. When and where

D. Where and what time ( ) 14. ----_____ did Tara learn ice skating? ----For three years.

A. How long

B. How old

C. How many

D. How often

( ) 15.Deng Y aping was born ____ June 2nd ,1973.

A. in B, on C, at D. for

Homework: （每天听磁带20分钟）

星期日：背诵语法一，默写U1单词how often-cola，背诵句子1-4 签字：________ 星期一：背诵语法二，默写U1单词how often-less背诵句子1-8签字：________

星期二：背诵表（1），默写U2单词matter-dentist背诵句子1-12签字：________

星期三：背诵表（2），默写U2单词matter- a few背诵句子1-16签字：________

星期四：背诵所有语法，默写U2单词matter- hear背诵句子1-20签字：________

星期五：背诵所有语法，默写U1-2所有单词背诵句子1-22签字：________