四、点评精练（ 15分钟）

A 辨析：used to do / be used to doing /be used to do

used to do,表示______________,是过去时态，用于描述过去常常发生的动作或存在的状态。

我过去害怕黑暗。 I used to________(be) afraid of the dark.

be/get used to doing,表示_____________.

玛利亚习惯早起。Maria is used to_____________(get)up early.

be used to do, 表示_______________,相当于 _________________.

火可以被用来做饭。Fire can be used to cook food.

= Fire can ____ _______ ______ _______ food.

练习

1. Mother _____us stories when we were young.

　　A. used to telling B. is used to tell

　　C. used to tell D. is used to telling

2.我习惯走路上学。 I _____ ______ _____ _____ to school.

3. He used to smoke, ______ _______?(完成反义疑问句)

4.李先生过去住在美国，所以习惯吃西餐。

Mr Li ____ _____ ____ in America, so he _____ _____ ______ _______ western dishes.

5. ______ used to______ an old bookshelf in my room.

A. There; be B. There; have

C. It; be D. There; having

6. 小刀是用来切东西的。

Knives _____ ______ ______ _____things.

= Knives _____ ______ ______ _____things.

B、辨析：be afraid of be afraid to

be afraid to do　不敢，胆怯去做某事，是主观上的原因不去做，意为"怕"；

1.She was afraid to step further in grass because she was afraid of being bitten by a snake. 她生怕被蛇咬着，而不敢在草丛中再走一步。

2.She was afraid to wake her husband. 她不敢去叫醒她丈夫。

be afraid of doing　担心出现doing的状况、结果。 doing 是客观上造成的，意为"生怕，恐怕"。

1. Don't be afraid of asking questions. 不要怕提问题.

2. Even if you do not fear death, then you will be afraid of what?

如果你连死亡都不惧怕了，那么你还会惧怕什么呢？

3. People should not be afraid of their governments. Governments should be afraid of their people. 人们不应该害怕政府，相反，政府应该害怕他的人民。

4.She was afraid of waking her husband. 她生怕吵醒她丈夫。