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should make a contribution to protecting the environment. Playing puter games too much has a bad effect on health. …direction 按 /朝 …… 方向 . A motor bike hit a truck in the opposite direction. 12. work well 奏效;起作用 . The medicine worked well. 13 .as long as 只要; 長達 . You can go out to play as long as you finish your homework. have taught English as long as nine years. Grammar be made of 由某種物質做成 (看得出原材料,物理過程 ) be made from 由某種物質制成 (看不出原材料,化學過程 ) be made up of 由幾部分組成 be made in 在某地 /某時制造 be made by 由某人制造 be made into 被制成 be used for 被用來做 be used to do 被用來做 be used as 被用作 used to do sth. 過去常做 be used to doing sth. 習慣于做 1 2 3 4 be made + 介詞 結構 :助動詞 be+及物動詞的過去分詞 :主 語 +was /were+ :主語 +was/were + not+ : Was /Were+主語 + 式 :疑問詞 W/H+was/were+subject+ed 一般過去時的被動語態(tài) Ⅰ .單項選擇 ( ) workers made great contributions ______the tall building. A. to build B. to building C. build ( ) the students are playing outside, for it’s raining. A. No one B. None C. Someone ( ) policeman warns the boys ____ on the street. A. to play B. not to play C. don’t to play ( ) 4. The little boy _____when he saw his mother. A. cried any longer B. didn’t cry any more C. cry no more ( ) ____our friends. A. should be treated as B. treat as C. are treated by ( )6. We are ___ to hear the _____ news. A. surprised。 surprised B. surprising。 surprised C. surprised。 surprising B B B B A C exercise ( ) ___play puter games unless he finished his homework. A. was allowed to B. was not allowed to C. allow to ( ) all know that paper ___wood. A. is made of B. is made into C. is made from ( ) kind of machine ___in 2022. A. is invented B. is made C. was invented ( )(An)___is used for taking photos. A .Camera B. Lift C. MP3 player ( )11 .We should spend more time ___because it’s too important. A .to learn English B. learning English C. in English B C C A B exercise ( ) 12. A big supermarket _____in our city last year. A. is built B. were built C. was built ( ) you tell me who the radio ____ by? A. invents B. invented C. was