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Ⅰ.单句语法填空 1．Reading in bed will do harm ________ your eyes. 2．It is impossible for a cock to lay ________ (egg)． 3．(2015·浙江，16)If steel is heavier than water，why are ships able ________ (float)on the sea? 4．(2017·江西，阅读A)In his black and blue suit and with ________ oxygen tank fastened on his back，Larry dived from boats into the middle of the ocean. 5．(2017·福建，阅读B)The climate here ________ (be)quite pleasant，the temperature rarely，if ever，reaching 30℃ in summer. 6．Our success depends ________ whether everyone works hard. 7．(2015·陕西，阅读C)The destruction of such species could prevent researchers ________ (find)cures for certain diseases. 8．It was difficult for the helicopters ________ (get)close to the roof of the building because of the heavy smoke. 9．(2017·天津，6)We have launched another man－made satellite，________ is announced in today's newspaper. 10．Now that they have computers，it becomes ________ (easy)to deal with the problems. 答案 1.to 2.eggs 3.to float 4.an 5.is 6.on 7．finding 8.to get 9.which 10.easier Ⅱ.单句改错 1．If you put your heart into it，you'll succeed on time. | 
