问题 填空题

家中的洗衣机如果不平,洗衣机工作时声音很大.如果洗衣机的底脚垫上橡胶垫,可以减小洗衣机工作时的______,从而减小洗衣机工作时的噪声.这是从______处减小噪声.

答案

如果洗衣机的底脚垫上橡胶垫,可以减小洗衣机工作时的振动,从而减小洗衣机工作时的噪声.这是从声源处减小噪声.

故答案为:振动;声源.

改错题

下列各句中均有一处错误,找出错误处并改正在题后的横线上。

小题1: Meet my teacher, after all thirty years in Boston, was an unforgettable

moment for me, one I will always treasure.                        __________

小题2: From the puzzling look on the students’ faces, I know they didn’t

understand me clearly.                                         __________

小题3: The government is trying hard to have the people’s living standard risen.. __________

小题4: I will not go to the party unless being invited.                      __________

小题5:Mum promised to buy an English-English dictionary to me as a present.  __________

小题6:All the neighbors admire this family that the parents are treating their

child like a friend.                                          __________

小题7: The factory produces half a million pairs of shoes every year, 80% of

them are sold abroad.                                           _________

小题8:–Come on in. I have a gift for you.

--Oh, that’s so nice of you! I never thought you will give me a gift.       _________

小题9: I’ll appreciate that if you can phone me to tell me the exact time.       ._________

小题10: What was reported in the newspaper that fewer traffic accidents

happened this year.                                             _________

问答题