人教版必修第三册unit4重点句式和语法

1、人教版必修三UNIT 4 SPACE EXPLORATION had to to also to a lot of and 备 还 型 also.是词在句 分者 可以省略。 also.用于连接,着 可连接两个并列的句子 位时 后面 ,其 as to sth)为了;】 to,但 so as to 一般不用在句首。 to so as to that in 句从 an iPad to an iPad in he 网,他买了一个 iPad 某人做某事 被迫做某事 to in to in Liwei orbited in 5 ,杨,中 引语 to in 作后词 the country当 修,常 man

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3、hether or (1)whether.or.意为是”,引导名词性从句。 this or is I in time the to 车或是只好(2)whether.or.意为论”,引导让步状语从句。 you can see the is 见 ,和被修饰的名词或 1. to us will be is the first to last one to leave.来2. always has a of letters to 天,他总是有许多信 left us a lot can to : , 因 , 如 词其There is to worry important to at 3. his to

4、write to his the to face 4. it is to I need to a Is the to open the 吗作状语 用法 例句动词不定式作目 的状语表示 in to 作目 目的 的状语so to do 作目的 状语作状语 用 例句We work to be key 我们努力学习以便进入重点大学。 In order driving test,he very 为了通过驾驶考,他努力练习。 up to get to airport on 他起得很早以便能按时到达飞机场。表示结果only to do He to railway station only to 常表示出乎 意料的结果 他到达火车站却发现火车开走了。 .enough enough to join the army.他到了参军 do;too.to 的年龄了。do;so.as to The girl kind to help the 那个do表示 直接 原因 表原女孩很善良,他帮助了那位老人。He astonished to hear th