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Unit 4 Astronomy：the science of the stars Section ⅡLearning about Language 课时精练（人教版必修3，重庆专用） Ⅰ.短语填空 1．____________ cars while crossing the road. 2．A fire ____________ in the neighborhood last night. 3．____________！The news isn't too bad. 4．____________you have finished your work, you'd better have a rest. 5．You'd better ____________ what the teacher said and then do that. 答案 1.Watch out for 2.broke out 3.Cheer up 4.Now that 5.get the hang of Ⅱ.单项填空 1．My uncle's house in the downtown area is much smaller than ours, but it is twice ________ expensive. A．as B．so C．too D．very 答案 A [考查倍数的表达法。该题采用了“倍数＋as＋adj./adv.＋as”这一结构，expensive后面省略了上句相同的部分as ours，所以答案为A。] 2．The police often warn us to ________ the thieves in our neighborhood. A．find out B．look out C．point out D．watch out for 答案 D [考查动词短语。句意：警察经常提醒我们提防社区里面的盗贼。watch out for...“小心……；提防……”，符合题意。find out“找出；查明”；look out“小心；注意”，后面不能直接跟宾语；point out“指出”。] | 
