高一英語：知識點總結Unit3-4(15)
8. used to
(1) used to do sth. 過去常常……(現(xiàn)在已不如此)
We used to grow beautiful roses.
注意：否定句和疑問句有兩種
You usedn’t to make that mistake.
She didn't use(d) to do it, did she?
You used to smoke a pipe, didn't you? / use(d) n't you?
(2) be / get / become used to + n. / doing 習慣于
I have always been used to hard work.
He got used to living in the country.
(3) be used to do 被用來做……
This knife is used to cut bread.
表示“過去常常……”時，used to與would區(qū)別：
(1) would 只強調(diào)“過去常常……”，used to 說明現(xiàn)在不是如此。
The old woman would sit there for hours doing nothing.
(2) would 只接行為動詞，used to 可接行為動詞和表狀態(tài)的詞。如：be, like, know, have。There used to be a temple at the foot of the mountain.
9. watch out 當心;注意
You'll be cheated if you don't watch out.
(1) watch out for = look out for 提防;當心
You must always watch out for the traffic here!
(2) watch over 照看;看守;負責
The mother bird is watching over her young.
10. 含“動詞 + out”短語
① come out 出來，出版，傳出
② go out 出去，熄滅，不時興
③ look out 當心，注意
④ take out 拿出，取出，帶……出去
⑤ rush out 沖出去，匆忙大量生產(chǎn)
⑥ try out 嘗試，試驗
⑦ watch out 小心
⑧ wear out 穿破，用壞，(使)疲乏，消磨
⑨ find out 找出，查出
⑩ make out 填寫，完成.設法應付
get out 出去，逃離，泄露，公布
pick out 看出，選出
think out 想出
give out 發(fā)出，筋疲力盡
set out出發(fā)，陳述
(責任編輯：康彥林)
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