Unit 9 When was it invented？一.单项选择（）1.If you _ carefully, you _ the report well. A.will listen; will understand B. will listen; understand C.listen; will understand D.listen; understand( ) 2.Must I finish the exercise this afternoon ? Yes,you _, but you _ finished now. A.must; mustnt B.must;dont have to C.may; neednt D.may; mustnt( ) 3.She didnt come to school yesterday,did she ?_,though she was not feeling very well. A.No,she didnt B.Yes,she was C.No,she wasnt D.Yes, she did( ) 4.Not only the children but also their grandma _ to read the picture book. A.want B.wants C.will want D.have wanted( ) 5.What happened to Billy? He _ because of his drink-driving. A.is caught B.was caught C.has caught D.had caught( ) 6.English is used _ a second language _ people in many countries. A.as;by B.as;for C.for;by D.by;for( ) 7.In many places in China, the old over 90_ not only by their family but also by the government A.is taking good care B.are taken good care of C.is taking good care of D.are taken good care( ) 8.You may play football when your homework _. A.is finished B.is finishing C.has finished D.finished( ) 9.Who was the book _ ? A.write B.wrote C.written D.written by ( ) 10.Columbus _ America and Edison _ lights. A.discovered; discovered B.invented; invented A.discovered; invented D.invented; discovered二.根据句意及首字母提示补全单词，完成句子三.用所给词的适当形式填空17.This is a _ table. Its made of _.(wood)18.Two of the riders _ (throw) off their horses in the second race.19.What do you think is _(helpful) invention of all?20.The number of the students in our school _ (be) 1200, and a number of them _ (be) hard-working.21.Quite a few drivers who drove too fast _ (stop) by the policeman.22.Tim was seen _ (get) out of the subway at the station on Centre Street.四.根据汉语记单词提示完成句子23.Be careful,or _(你会撞上别人的). (knock)24.We _ (不期而遇) at the airport yesterday. (by accident)25.Do you know _ (篮球是什么时候发明的) ？（when）26._ on Friday 20th,2011,the NBA all-star game _ in Los Angeles. (据报道，2011年NBA全明星赛于2月20日在洛杉矶进行) （report）27.Lemon _(太酸了我不能吃). (too)