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,引導條件狀語從句; that以便,以致于,引導目的解析:D【詳解】句意:那些想減肥的人必須每天鍛煉,否則他們可能會再次發(fā)胖。本題考查并列連詞。本題考查并列連詞。15.D【詳解】句意:Jimmy很早就動身去機場了,否則他將趕不上飛機。解析:D【詳解】句意:皮特先生必須盡快振作起來,否則他會徹底輸掉比賽。14.D【詳解】句意:皮特先生必須盡快振作起來,否則他會徹底輸掉比賽??疾檫B詞。so因此;or否則;but但是;and和。祈使句+and/or+陳述句。but但是,表示前后是轉折關系;or否則,表示前后是選擇關系;and和,表示前后是并列關系;so所以,表示前解析:B【詳解】句意:——快點,湯姆,否則我們看電影要遲到了。故選C。and而且,表示遞進關系;because因為,表示因果關系,but但是,表示轉折關系。根據句意可知,天氣熱是原因,所以想去游泳。考點:考查連詞辨析10.C【解析】試題分析:句意:今天真熱,因此我們想去河里游泳。根據題意故選C。前后句表示因果關系,故答案為A。A. so 因此;B. but但是;C. for 為了; D. or否則,或者??疾檫B詞辨析。7.B【詳解】句意:我今天早上沒吃早飯,所以我現在很餓。——是的,但是學生們通過獨立學習提高了他們的能力?!堑?,但是學生們通過獨立學習提高了他們的能力。but但是,表轉折;so因此,表因果;or或者,表選擇;and和,表順承;上句“他們認為李做不了這項工作”解析:B【詳解】句意:他們認為李做不了這項工作,所以他決定向他們展示他的能力。句意:我感覺很餓,因此我給自己買了一個三明治。考點:考查連詞的基本用法4.B【解析】試題分析:but但是;so因此;or或者,否則;because因為。3.A【解析】試題分析:根據語境可知此句的含義是對于那些住在上海的人們來說,上海的外貌發(fā)生了很大的變化,但是上海的靈魂依然相同。解析:B【詳解】句意:你最好6點半的時候喊醒Tom,否則他比賽就要遲到了。2.B【詳解】句意:你最好6點半的時候喊醒Tom,否則他比賽就要遲到了。句意:人們砍伐了太多的樹木,因此溫室效應變得越來越嚴重。re no different from anybody else.A.and B.or C.but D.Though40.The dress is very nice, ________ it doesn’t look good on me.A.or B.but C.so D.until【參考答案】一、選擇題1.A【解析】試題分析:so 因此;because 因為;although雖然,盡管; if是否,如果。八年級英語連詞and,or,but的用法專項練習附答案一、選擇題1.People cut down too many trees, _____ the greenhouse effect bees more and more serious.A.so B.because C.although D.if2.You’d better wake up Tom at 6:30, he will be late for the match.A.if B.or C.and D.but3.To some people living in Shanghai, the face of Shanghai may have changed, ________ the heart of it remains the same.A.but B.and C.so D.or4.I was feeling hungry, ______ I bought myself a sandwich.A.but B.so C.or D.because5.They don’t think Lee can do the job, ________ he has decided to show them he can.A.but B.so C.or D.and6.— Some people think students may waste time while studying at home. —It is true, ________ students have improved their ability through learning independently.A.but B.so C.or7.I didn’t have breakfast this morning, ________ I am very hungry now.A.but B.so C.or D.and8.It was very dark outside, ___________ we had to feel our way slowly.A.so B.but C.for D.or9.Liza speaks English very well,_______she doesn’t know Chinese.A.and B.so C.but D.Because10.It’s hot today, ______we want to go swimming in the river.A.though B.but C.so D.or11.Cindy likes bananas, ______ she doesn’t like pears.A.and B.because C.but12.—Hurry up, Tom, we’ll be late for the movie.—Ok, I will.A.but B.or C.and D.So13.Follow the teachers39。d like to, ________I have to look after my baby sister.A.because B.as C.but D.if34.Would you like to go to the museum with me?I’d love to, __