请你…好吗?(用来请求对方为自己做某件事)
Would you please bring some water with you?
请你带点水来好吗?
Will you please help her with her maths?
请你帮她学数学好吗?
这本书有点难,为什么不读些容易的?
This book is a bit hard, why not read something easier?
It’s warm here, why don’t you take off your coat?
这很暖和,你为什么不脱掉外衣?
There is a seat, why not sit down?
还有座位,怎么不坐下?
It’s very cold outside, you’d better put on your coat.
外面很冷,你最好穿上大衣。
We’d better go right now.
我们最好马上去。
…had better do 的否定式为…had better not do. (在better后加not即可)例:
You’d better not speak when your mouth is full of food.
满嘴食物时你最好别讲话。
I’d like to go there with you.
我很想和你一起去那。
I’d love I like to help you study English.
我很愿意帮你学英语。
此句式还可以扩展为:
would like / love sb. to do sth.
“喜欢/想让某人做某事。”
I’d like you to stay here.
我想让你留在这。
I’d like them to help me.
我想让他们帮助我。
对某人来说做某事…例:
It’s dangerous for children to play football in the street.
对孩子来说在街上踢足球是很危险的。
It’s good for us to take more exercise.
对我们来说多运动是有益的。
It’s very kind of you to say so.
你这样说真是太好了。
It’s very kind of you to help me.
你真好,肯帮我。
该句式中,引导动词不定式的逻辑主语的介词用for还是of,主要取决于前面的形容词。如果形容词是描述动词不定式的行为者的性格、品质的。如:kind, good, nice, wrong, right, clever, careless, foolish等,应用of;如果形容词仅仅是描述事物,不是对动词不定式的行为者的品质进行评价的,就用for. 常见这类形容词有difficult, easy, hard, important, dangerous等。
It’s wrong of you to do it.
你做这件事是错的。
It’s hard for you to be a lawyer.
对你来说做律师很困难。
He is always ready to help others.
(他总是乐于帮助别人)
I’m always ready to make new friends.
我总是乐于结交新朋友。
(某人、某物)足够(不能)做某事。例:
The boy is old enough to go to school.
这个孩子到了上学年龄。
I’m tall enough to reach the top of the tree.
我够高能够到树顶。
*1. 此句是肯定句时,可以用主+be+so+adj.+that的句型(即so…,that…表示的结果状语从句)来替换。
The boy is so old that he can go to school.
I’m so tall that I can reach the top of the tree.
2. 此句是否定句式时,既可以用so…that…引导的结果状语从句来替换,还可以用too…to…句式替换。例:
He is not old enough to go to work.
他太小不能去上班。
He is so young that he can’t go to work.
He is too young to go to work. 再如:
The box is not light enough for me to carry.
这个箱子太重我搬不动。
The box is too heavy for me to carry.
The box is so heavy that I can’t carry it.
It’s time for sth. / doing sth. 例:
It’s time to go to school. 该上学了。
(It’s time for school.)
It’s time to get up. 该起床了。
(It’s time for getting up.)
此句可以扩展为:It’s time for sb. to do sth.
是某人做某事的时间了。
for sb. to do sth. 是动词不定式的复合结构。例:
It’s time for me to work.
到我工作的时间了。
It’s time for you to go to school.
到你们上学的时间了。
3. How long will it take them to finish the work?
完成那项工作需要花费他们多少时间?
在使用该句式要注意的是:sb. 如果代词表示用宾格;take随时态改变;句中的时间用段时间,对此提问用how long。
例:It takes us more than two hours to do our homework every day.
It took us more than two hours to do our homework yesterday.
It will take us more than two hours to do our homework tomorrow.
How long did it take you to do your homework yesterday?
2. It took me ten yuan to buy the book last week.
上周我花了10元买那本书。
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