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发表于 2016-7-23 01:29:08
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(4)thanks to 这一短语介词,含有“幸亏、多亏、亏得、
-- Do you know bow much the room costs?
你知道这房间花费多少吗?
-- Yes, I do. / No, I don't.
知道。/不知道。
-- How much do you think the room costs?
你认为这房间会花多少钱?
-- I think the room costs 300 dollars.
我认为会花300美元。
2. You want to buy a CD for your friend's birthday but
you are not sure what to buy.
你想为朋友的生日买一张CD,但你拿不准该买什
么。
be sure 后可接不定式及从句。如:
John is sure to pass the exam.
约翰一定能通过考试。
He is sure that the party will be a success.
他确信这次聚会能获得成功。
[注意] be sure 后接名词、代词、动名词时需用介词of
或about。如:
You may be sure of his honesty.
你可以确信他是诚实的。
I think he lives at No. 23 West st., but I'm not sure
about the number.
我认为他住在西大街23号,但对这个号码我不能肯
定。
[比较]be sure to do 与 be sure of doing
John is sure to pass the exam.
说话人确信约翰能通过考试。
John is sure 0f passing the exam.
约翰本人确信自己能通过考试。
[提示] be not sure后常用whether / if, what, when,
where 等引起从句,有时也用that。如:
I'm not sure whether / if he will come to see me.
我拿不准他是否会来看我。
I was not sure what I ought to do.
我拿不准该干什么。
[辨析] sure 与 certain
certain 一般可与sure换用,但在It is certain that...
中不用sure。如:
It is certain that our team will win the game.
我们队肯定能赢得这场比赛。(不用sure)
3. You want t0 find a good song to dance to.
你想找一首好歌来伴舞。
① to dance to 是不定式作定语,修饰名词song,并与
之形成动宾关系,这时的不定式应为及物性的,若动
词不及物,则应加上适当介词。如:
New York is a nice place to visit.
纽约是个游览的好地方。
Could you find me a chair to sit on?
能给我找把椅子坐吗?
② dance to中的to表示“伴随,按照”。如
He likes to sing to the piano.
他喜欢钢琴伴唱。
Please add salt to taste.
请按口味加盐。
The map was drawn to scale.
这地图是按比例绘制的。
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