★ 注意：For和because用法区分
For引导的从句并不说明主句行为发生的直接原因，只是提供一些补充说明，且不可位于主句前。 当for从句表示原因时，有时可与because互换，所不同的是because分句的位置可前可后，而for分句只能后置，这时，for前往往须用逗号或分号与主句分开，引起的从句对主句加以解释。有时，for引起的从句并不表示原因，而是表示一种推断或解释，而because则不能。 Someone in the house must be ill, for a doctor has just come out. ★ 练习：
1. Liquids are like solids they have a definite volume. A A. in that B. for that C. with that D. at that 2. nobody was very interested in it, they decided to cancel the trip. D
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A. Even though B. As soon as C. While D. Seeing that 3. our country has so many good table-tennis players，we have to decide on the best ones to take part in the game. B A. Although
B. Since
C. If
D. While
4. Not that John doesn’t want to help you, it’s beyond his power. A A. but that B. for that C. and that D. in that
5. Animals suffered at the hands of man their habitats were destroyed by people to make way for agricultural land to provide food for more people. D A. in which B. for which C. so that
D. in that
6. Tom has no interest in piano, there is no point pushing him to learn it. A A. Now that B. In case C. Even if D. As if
7. A man cannot smile like a child, a child smiles with his eyes, while a man smiles with his lips alone. D
A. so B. but C. and D. for
★ 注意：区分where引导的状语从句和定语从句 Where there is a will, there is a way.(状)
We shall go where working conditions are difficult. （状）
We shall go to the place where working conditions are difficult. （定） ★ 练习
1. You’d better not leave the medicine kids can get at it. C
A. even if B. which C. where D. so that 2. If you are traveling the customs are really foreign to your own，please do as the Romans do.D A. in which B. what C. when 3. In peace，too，the Red Cross is expected to send help A. whoever
B. however
D. where
there is human suffering.D
D. wherever
C. whatever
1. The visitor asked to have his picture taken ____stood the famous tower. D A. that B. what C. when D. where 2. There were dirty marks on her trousers ____she had wiped her hands. A A. where B. which C. when D. that
3. I have kept that picture _____I can see it every day, as it always reminds me of my happy days in my summer holidays. B A. which B. where C. whether D. when 4. To support his family, the young man went ______he could find work. D A. every place B. to the city which C. the place where D. wherever 8. The great scientist was brought up ______he was born and in his 30s he came to Nanjing. C A. when B. in which C. where D. wherever
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★ 练习
1. they are inexperienced, they have done a good job. A A. Given that B. On condition that C. provided that 2. The men will have to wait all day the doctor works faster. B
D. As long as
A. if B. unless C. whether D. that
3. America's car industry will continue to break down some progress is made to close the gap. C A. since
B. because
C. unless
D. though
4. Shh! I’d be grateful comments during the concerts. B A. unless you made B. if you didn’t make C. provided you made D. so long as you made 5. I don't think Maria will be disappointed at the news，but I will see her she is. C A. as if
B. so that
C. in case
D. even though
6. The public library will have to close _____the local government ______to give extra money. C A. until; will agree B. when; will agree C. unless; agrees D. if; agrees 7. My parents don’t mind where I live______I am happy. C A. even though B. as soon as C. as long as D. as though 8. ______he has made up his mind to do something, nothing will stop him. A A. Once
B. Before
C. Although
D.
As
soon
★ 练习
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