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　单元语法小专题
Ⅰ.用适当的从属连词填空
1.I will tell the news to her 　　　　I see her.
2.We’ll cause more pollution 　　　　we find ways to recycle more rubbish.
3.　　　　 he was very tired,he continued working in his office.
4.You’ll be late for class 　　　　you don’t hurry.
5.I felt sorry 　　　　I broke the cup.
Ⅱ.根据汉语意思完成句子
1.——你为什么喜欢中文
——因为它很重要。现在有许多人说中文。
—Why do you like Chinese
— 　　　　 　　　　 　　　　 　　　　.Now there are many people speaking Chinese.
2.随着时间的推移,情况似乎变得更糟糕了。
　　　　 　　　　 　　　　,things seemed to get worse.
3.我挂断电话之后才想起来原本想说的话。
　　　　 　　　　 　　　　 　 　　I remembered what I’d wanted to say.
4.不要做出承诺,除非你能遵守它。
Don’t make a promise 　　　　you can keep it.
5.即使不能发现一个新的行星,也值得一试。
Well,it’s worth a try,　　　　 　　　　you don’t find a new planet.
Ⅲ.用适当的词填空
Summer vacation is coming.One of the best ways to cool off on a hot summer day is to jump into a swimming pool.Swimming is great exercise,and a trip to a pool or a beach is a good way to have fun with friends.1.　　　 　 swimming can also be dangerous.2.　 　　　 it’s important to stay safe
3.　　　　 you do it.Here are a few things to do to swim safely.
●Swim only in areas set for swimming.
Don’t swim 4.　　　　 there is a lifeguard on duty.5.　　　　 you are on a beach near the ocean, this is more important.In some places,fast currents(急流) can sweep swimmers away without warning.So if a sign says“no swimming”,please take care.
●Be careful 6.　　　　 diving into the water headfirst.
Most pools have deep ends where diving is safe.In natural water,don’t dive 7.　　　　you know that the water is deep enough.8.　　　　 you could hit your head on the bottom.
●Make sure you have a partner with you.
Nobody knows what will happen 9.　　　　 you are swimming.10.　　　　 something goes wrong,you can get help from that person as quickly as possible.In this situation,a few seconds can make a big difference.
Follow the rules above,and you can swim safely.
【详解答案】
语法精练
Ⅰ.1.when　2.unless
3.Though/Although　4.if　5.because
Ⅱ.1.Because it’s very important
2.As time passed　3.After I hung up
4.unless　5.even if/though
Ⅲ.1.But　2.So　3.when　4.unless
5.If　6.while　7.unless　8.Because
9.while　10.If

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