公共英语口语学习:新概念精讲第四十课

发布时间:2019-01-31 17:40:10

l         Further notes on one text

He won’t let me make another film. let后面的动词不定式,不加to。

What’ll we do then? 然后我们怎么办?then是代词,本句完整的意思:What’ll we do if we spend all that money?

It’s a pleasant dream but everything depends on ‘if’. 凡是与依靠有关的介词,使用介词on。我们曾经学过的有:live on.

l         Expressions

1. 间接引语:参见Lesson 32

2. 以If引导的状语从句:If可以引导一个条件状语从句,表示“如果…”。以If引导的条件句分为真实条件句,和虚拟语气(非真实条件句)两种。

(1)真实条件句:真实条件句用于询问或谈论十分可能发生的事情。

句式:主句(一般将来时) If 从句(一般现在时),注意主句中不用be going to表示将来。所谓:“主将从现”。

If it isn’t rain, we will go to park tomorrow.

情态动词用原形。

If you finish this work before seven o’clock, you can knock off.

(2)虚拟条件句:虚拟条件句指条件根本不可能发生,或发生的概率极小。

句式:

时间

从句

主句

过去

过去完成时

过去将来完成时

现在

一般过去时

过去将来时

将来

were to/过去完成时

过去将来时

谓语形式:虚拟条件句谓语形式,单三也不用was而用were。

时间

从句谓语

主句谓语

过去

过去完成时

过去将来完成时

had done(been)

would(could/might) have done(been)

If I had been Kongrong

I would have chosen big pear.

现在

一般过去时

过去将来时

did(were)

would(could/might) do(be)

If I had a lot of money

I would buy a mink coat for you.

将来

were to/过去完成时

过去将来时

were to/would(should) do

would(could/might) do(be)

If the sun were to rise

 in the west tomorrow

I might finish this work.

例句:其中were to常用,而would/should与一个表示将来的时间状语连用。

现在:If I had enough money, I would buy a book.

过去:If I had had enough money, I would have bought a book.

将来:If I were to (should) have enough money, I would buy a book.

(3)混合时态:在虚拟条件句中,一般来说主从句的时态是相同,但如果不相同,那么就需要用到混合时态。混合时的虚拟语气最明显的标志是时间状语。混合时态基本特点是时态倒退一格。

句式:一般来说混合时态有两种。

从句过去(过去完成时)

主句现在(过去将来时)

If you had phoned me,

I would know what I do now.

从句现在(were to/过去将来时)

主句过去(过去将来完成时)

If I were not to wait for you,

I would have left here this morning

阅读更多外语试题,请访问生活日记网 用日志记录点滴生活!考试试题频道。
喜欢考试试题,那就经常来哦

该内容由生活日记网提供.