答案：however/no matter how
3.A new supermarket was built there had once been a wasteland. 解析：where引导的地点状语从句。句意：一家新的超市将在那曾是废墟的地方建立。 答案：where
4. you've got such a golden chance，why not make the best of it？ 解析：此为since/now that引导的原因状语从句，since＝now that既然。句意：既然你得到一个如此宝贵的机会，为何不充分利用呢？ 答案：Since/Now that
5.A whole month had passed she fully recovered.
解析：此为before引导的时间状语从句，before还未……就……；不到……就……；……才……；趁；还没来得及。句意：一个月过去了，她才完全康复。 答案：before
6.I was having dinner I heard a knock at the door.
解析：when用作并列连词，其意义为“那时，这时”，相当于and at this/that time。句意：我正在吃晚饭，那时我听到敲门声。 答案：when
7.He had just finished the book supper was served.
解析：when用作并列连词，其意义为“那时，这时”，相当于and at this/that time。句意：他已经完成那本书了，那时晚饭端上来了。 答案：when
8.I won't tell him the correct answer even I know it.I don't like him.
解析：此为even though/even if引导的让步状语从句，even though/even if(即使)。句意：我不会告诉他正确的答案，即使我知道答案。我不喜欢他。 答案：if/though
9.He was talking as he knew everything about it.
解析：此为as if/as though引导的方式状语从句。其中as if或as though
引导的从句一般用虚拟语气，但如果从句中所陈述的情况很可能实现，也可用陈述语气。句意：他正谈论着，似乎他无所不知。 答案：if/though
10. I like Chinese food，I won't visit that restaurant today.I'd like to try a different one.
解析：此为although引导的让步状语从句。although尽管。句意：尽管我喜欢中国食物，但我今天不会去那家餐馆。我想试个不同的口味。 答案：Although
11.Roses need special care so they can live through winter. 解析：此为so that引导的目的状语从句。so that意为“以便……；为了……”，引导的状语从句中常用情态动词。 答案：that
12.You will succeed in the end you give up halfway.
解析：此为unless引导的条件状语从句，意为“除非”。句意：你最终会成功，除非你中途放弃。 答案：unless
13.Tom didn't go to bed his mother came back from work. 解析：此为until引导的时间状语从句。not...until直到……才。句意：直到他妈妈工作回来，Tom才上床睡觉。 答案：until
14.The baby may be saved he is sent to hospital in no time. 解析：此为if/so long as引导的条件状语从句。if如果；so long as只要。句意：那个婴儿可能会被救活，如果/只要他及时被送到医院。 答案：if/so long as
15.I found all the doors open and everything in disorder I arrived home.
解析：考查时间状语从句。as soon as/when/the moment常译为“一……就……”。句意：我一回到家就发现所有的门都开着，一切东西都乱七八糟的。
答案：when/as soon as/the moment
16. he is a newcomer，he has few friends around here. 解析：此为because引导的原因状语从句，意为“因为”。句意：因为他是新来的，他在这有很少的朋友。 答案：Because
17.I didn't know what happened.He had rushed out of the room I could ask him.
解析：此为before引导的时间状语从句。before在……之前；还没来得及。句意：我不知道发生了什么事情。我还没来得及问，他就已经冲出了房间。 答案：before
18.Please keep reading the poem you have remembered it. 解析：此为until引导的时间状语从句，意为“直到”。句意：请不断读这首诗，直到你记住它。 答案：until
19.It was not yet 7 o'clock he came back.
解析：此为when引导的时间状语从句。when当……的时候。句意：他回来时，还未到七点。 答案：when
20.Can you imagine how long it will be a new drug is invented for AIDS？
解析：此为before引导的时间状语从句。此为结构It will be＋时间＋before...；要过多长时间才…… 答案：before
21. you understand the rule，you will find it very easy to obey. 解析：once此处引导条件状语从句，意为“一旦”；从句意为一旦你理解了规则……。 答案：Once
22.I will take you shopping it doesn't rain this afternoon.
解析：句意：如果今天下午不下雨，我就带你去逛商店。if引导条件状语从句。
答案：if
23.He failed again just he didn't work hard at his lessons. 解析：此为because引导的原因状语从句。句意：他再次失败了，因为他没有努力学习。 答案：because
24.He was in such a hurry he forgot his keys.
解析：此为such...that引导的结果状语从句。such＋a/an＋名词＋that...如此……以致。句意：他走得如此匆忙，以致忘了钥匙。 答案：that
25.He wouldn't listen to me， I said.
解析：此为whatever/no matter what引导的让步状语从句。whatever/no matter what不管什么。句意：不管我说什么，他都不会听我的。 答案：whatever/no matter what Ⅳ.语法填空
Experiments have proved that children can be instructed in swimming at a very early age.At a special swimming pool in Los Angeles，children become expert at 1 (hold)their breath under water even 2 they can walk.Babies 3 two months do not appear to be reluctant to enter the water.It is not long 4 they are so accustomed to swimming 5 they can pick up weights from the floor of the pool.A game that is very popular with these young 6 (swim)is the underwater tricycle race.Tricycles are lined up on the floor of the pool seven feet under water.The children compete against each other to reach the other end of the pool.Many pedal their tricycles， 7 most of them prefer to push or drag them.Some children 8 cover the whole length of the pool 9 coming up for breath even once.Whether they will ever become future Olympic champions，only