1.下列短语中包含化学变化的是( )
A.滴水成冰 B.光合作用 C.海市蜃楼 D.沙里淘金
1. Where do you think the music comes from?
你觉得这种音乐来自何处?
(1)此句子是由一个一般疑问句和一个特殊疑问句
混合而成，故称为混合疑问句。常用于这种结构的
动词有think, believe, guess, suggest, suppose,
hope, say, imagine等，此类句型常用来征询对方对
某事的看法、判断、意见、认识、猜测等，或者请求埘
方重述一遍。
What do you think Inade Mary so upset?
你认为是什么使玛丽如此不安?
Who do you suppose would believe that story?
你认为谁会相信那个故事?
How high do you,say this mountain is?
你说这山有多高?
[注意]此句型中一类的插入语还可以放在句尾，有
时还可以插入句中，用逗号隔开，在用法上基本相
同。
When do you think he will be back from abroad? (=
When will he be back from abroad， do you think?)
你认为他什么时候会从国外回来?
Which way, do you imagine, he went?
你能想出他走哪条路了吗?
(2) 这种混合疑问句以know, tell, ask, hear等作谓
语动词时，其后带一般疑问句的结构，以及答语不
同，后者可以用Yes...，No...来回答，而前者则不
行，请看下面的句子：
6. such…as…，such as，such…that…
(1) such...as...作“像……那样的”，“如……之类
的”解。such后面可跟可数名词，也可跟不可数名
词。名词前还可加其它形容词修饰。as是关系代
词，引导定语从句，as常在从句中作主语、宾语、表语
等。如：
I want t0 buy such books as are about science and
technology.
我想买科技方面的书。(as在从句中作主语。)
Don't read such books as you can't understand.
不要读你看不懂的书。(as在从句中作宾语。)
Such books as this are too difficult to beginners.
这样的书对于初学者来说是太难r。(as引导一个
省略的从句“as this(is)”，as在从句中作表语)
(2)such as 是短语连词，意为“诸如”，“例如”，引出的
是such前面的词的同位语。如：
John likes to make furniture，such as chairs and tables.
约翰喜欢做家具，如桌子和椅子之类。
(3) such…that…作“如此……以致……”解。that
是连词，引导结果状语从句。
The teacher asked such a difficult question that no one
could answer it. (结果状语从句)
老师问了一个如此难的问题以致没人能够回答。
[比较]
The teacher asked such a difficult question as no one
could answer. (定语从句)
老师问了一个没人能够答得上来的难题。(as在从
句中作宾语)
☆句型诠释☆
5. real, true
(1) real表示“真的”、“真实的”，“名符其实的”，指的
是事实上(客观上)存在而不是想像的。
Is this real gold?
这是真金吗?
I'm learning to skate on real ice.
我在真正的冰上学滑冰。
(2) true意为“真的、真正的”，表示的是和事实及实
际情况相符合。
It is quite true.
这是真实的。
He is true to his name.
他名不虚传。
[注意] ① true 还可作“忠实的”解。试比较：
true friend (comrade，friendship) 忠实的朋友(同志，友
谊)
real friend (comrade，friendship)真正的朋友(同志，友
② 在词组come true (实现) 和 be true 中，不能用real
来代替true。
4. power, strength, force
这三个名词都有“力”的意思，但使用范围不完全相
同。power“力”，含义最广，指政治力量或能力；
strength 指某人或某物所具有的内在力量，可指体
力、力气；force 也可指物质或精神力量。多指为做成
某事而使用的力量，也可指武力。
Knowledge is power.
知识就是力量。
The boy gathered his strength to get up.
那个男孩聚集力量站了起来。
It took him great force to lift the big stone.
举起那块大石头花费他很大的力气。
11. The chairman thought ____ necessary to invite
Professor Smith to speak at the meeting. (2005 全国)
A. that B. it
C. this D. him
[解析]选B it作形式宾语，代替不定式。
依赖、依靠、由于、因为”等意思。它引导的短语，可
以表达正面意思(近于原意“感谢”)，也可用于讽刺
口吻中(近于讽刺口吻的“感谢”。)它引导的短语在
句中用作状语时，大多放在句首，但也可以置于句
末。
Thanks to your help, passed the test.
幸亏有你的帮助，我测验及格了。(正面意思)
10. -- Dad, I've finished my assignment.
-- Good, and ____ you play or watch TV, you
mustn't disturb me. ( 2003 上海)
A. whenever B. whether
C. whatever D. no matter
[解析]选B whether...or...引导让步状语从句；=
no matter whether ... or
9. Although the working mother is very busy, she
still ____ a lot of time to her children. (NMET
2000)
A. devotes B. spends
C. offers D. provides
[解析]选A devote...to为固定搭配。
8. -- The cars give off a great deal of waste gas into
streets.
-- Yes. But I'm sure something will be done to
-- ____ air pollution.
A. reduce B. remove
C. collect D. warn
[解析]选A reduce pollution 减少污染。
7. The poor young man is ready to accept ____
help he can get. (2005 全国)
A. whichever B. however
C. whatever D. whenever
[解析]选C whatever引导的宾语从句。whatever
help = any help that...。