| 作 者: | 孙玉荣 杜建 | |||||
|---|---|---|---|---|---|---|
| I S B N: | 7560025129 | |||||
| 页 数: | 543 | |||||
| 开 本: | 32开 | |||||
| 封面形式: | 简裝本 | |||||
| 出 版 社: | 外语教学与研究出版社 | |||||
| 出版日期: | 2002-2-1 | |||||
| 定 价: | 21.9元 | |||||
| 现 卖 价: |
19.3 元(1星会员价) 19.1 元(2星会员价) 18.6 元(3星会员价) |
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1.时间状语从句
时间状语从句一般回答When?提出的问题,并可以用下列从属连词来引导: when (当……时候)、after(在……之后)、as (当,一边……一边)、as
long as(达……之久,长达)、as soon as(一……就)、before(在……之前)、by the time
(that)(到……的时候)、directly(一……就)、during the time(that)(在……期间)、immediately(一……就)、the
moment(that)(一……就)、now(that)(既然)、once(一旦)、since(自从)、until/till(直到)、whenever(无论何时)、while(在……期间)等,如:You
can keep these records as long as you like.
这些唱片你愿保留多久都行。
5.So the number of stars that we know exist is now estimated at …
that 引导的是定语从句,从句中的谓语动词是exist.该定语从句修饰stars.we know 为插入语。estimate sth .at 估计某物为,如:
His parents estimated the cost at about$5,000.
他父母亲估计费用在5,000美元左右。
课文详注 Furthernotesonthetext
1....and that if only the common people Of the world could meet one another at
football Or cricket,they would have no inclination tO meet On the
battlefield.that if only...or cricket作saying的宾语从句。其中的复合从属连词if
only(只要),根据实际语境和语义的需要,可用来引导真实性条件状语从句,或如文中那样引导非真实性条件状语从句。could meet和would
have是用来表示与现在事实不符的虚拟语气结构。if only的用法如下:
We can sureJy over come these difficulties if only we are closeJy united.
只要我们紧密地团结一致,一定能克服这些困难。(真实性条件状语从句)
If only she had had more money,she would have bought some more new clothes.
她那时如果有更多的钱,她就会再买几件新衣服了。(非真实性条件状语从句)
if only还常单独使用,用来表示诸如“要是……就”、“但愿……”这类含惋惜、愿望等感情色彩的句子。这样用时多用虚拟语气形式,如:
If only they were still alive!
他们要是还活着多好啊!
If only you had come five minutes earlier!
你要是早5分钟到就好了!
此外,不要将if only(只要)同only if (只有在……时)相混淆,比较:
We are sure you will succeed if on ……
