内容正文:
情态动词和系动词
考点精讲1 情态动词
1. can和could
(1) 表示现在、将来或过去的能力,可用be able to替换。如:
He can speak Chinese.
他能说汉语。
She could read at the age of three.
她三岁时就能阅读了。
(2) 表示请求、许可,常用于一般疑问句,相当于may。 could常用来表示语气比较委婉的请求或建议。
2. may和might
(1) may意为“可以”,表示允许和征询对方许可; might的语气更委婉。
(2) may的否定回答常用can’t/mustn’t或“please don’t ...”和“you’d better not ...”等委婉语气。
3. must和have to
(1) must强调主观上“必须”;而have to 强调客观上“必须,不得不”,并有各种时态的变化形式。
(2) must作“必须”讲时,对疑问句的否定回答常用needn’t或don’t have to。
(3) must作“一定”讲时,表示肯定猜测。
4. had better do表示“最好做(某事)”,否定形式用had better not do。
考点精练1
( B )1. (2023·滨州)— The paper cutting is pretty lively. Who made it?
— It be Mary. None of us except her is able to do it.
A. can B. must C. need D. might
( B )2. (2023·连云港)Earthquakes can be very dangerous. We
learn to protect ourselves.
A. might B. should
C. could D. would
B
B
( C )3. — I find my keys.
— Have you searched your schoolbag?
A. mustn’t B. shouldn’t
C. can’t D. wouldn’t
( B )4. (2022·盘锦)— I can’t find my dictionary. I use yours?
— Sure, here you are.
A. Need B. May
C. Must D. Should
C
B
( A )5. (2022·朝阳)— Dad, must I become a doctor like you when I finish university in the future?
— No, you . You can make your own decision and do whatever you like.
A. don’t have to B. can’t
C. mustn’t D. couldn’t
A
( B )6. (2022·百色)— you tell us a story in English?
— I think I can do it. Let me try.
A. Need B. Can
C. Should D. Must
B
考点精讲2 系动词
系动词主要用来说明主语的身份、性质、特征及状态。分为以下几类:
1. 状态系动词:用来表示主语状态,只有be动词。
2. 持续系动词:用来表示主语继续或保持一种状况或态度,主要有keep、 remain、 stay、 lie、 stand等。
3. 表象系动词:用来表示“看起来像”,主要有seem、 appear等。
4. 感官系动词:用于表示感官的感受,主要有feel、 smell、 sound、 taste等。
5. 变化系动词:用于表示主语的变化,主要有become、 grow、 turn、 get、 go、 come等。
考点精练2
( A )7. The silk so soft just like a baby’s skin.
A. feels B. looks
C. sounds D. tastes
( A )8. (2022·鄂州)— Dinner is ready. Help yourself, please!
— Wow! It delicious.
A. tastes B. sounds
C. turns D. gets
A
A
强化练习
单项填空
( B )1. (202