【正文】 。故選：B。A. and連詞，和、又，表示并列關(guān)系；B. or連詞，或者，通常表示選擇，在固定句型中表示轉(zhuǎn)擇關(guān)系；C. but連詞，但是，表示轉(zhuǎn)擇關(guān)系； ，所以，表示結(jié)果。and連接并列結(jié)構(gòu)；or用于句型祈使句+or+陳述句”中，表示在以祈使句為條件下的相反假設(shè)，意為“否則，要不然”；but但是，轉(zhuǎn)折連詞；so所以，引導(dǎo)結(jié)果狀語(yǔ)從句。A. though 盡管，引導(dǎo)讓步狀語(yǔ)從句；B. if如果，引導(dǎo)條件狀語(yǔ)從句； that以便，以致于，引導(dǎo)目的狀語(yǔ)從句；D. or否則，連接表示轉(zhuǎn)折的并列句。A. 否則，或者；；；。A. 否則，或者；；；。句意：我感覺(jué)很餓，因此我給自己買(mǎi)了一個(gè)三明治。11．B【解析】試題分析：but但是；so因此；or或者，否則；because因?yàn)?。句意：人們砍伐了太多的?shù)木，因此溫室效應(yīng)變得越來(lái)越嚴(yán)重。10．A【解析】試題分析：so 因此；because 因?yàn)?；although雖然，盡管； if是否，如果?？疾檫B詞辨析。A. so 因此；B. but但是；C. for 為了； D. or否則，或者。8．A【解析】試題分析：句意：外面很黑，因此我們必須慢慢摸著路行走?！癐 had a fever”是“I went to see a doctor.”的原因，故選D7．D【解析】句意：把你的書(shū)放在抽屜里，這樣他們就不會(huì)丟失了?！癐 had a fever解析：D【解析】句意：我發(fā)燒，所以我去看了醫(yī)生。6．D【解析】句意：我發(fā)燒，所以我去看了醫(yī)生?？疾檫B詞辨析題。5．A【解析】句意：音樂(lè)太吵了，所以我拒絕了。A. for連詞，因?yàn)?，表示原因；B. or連詞，或者、否則，通常表示選擇，有時(shí)也表示轉(zhuǎn)擇；C. as連詞，引導(dǎo)原因狀語(yǔ)從句解析：D【解析】句意：馬丁沒(méi)有把他要的所有食物都吃光，所以他把其余的都拿走了。so所以，or否則，for因?yàn)?，but但是。結(jié)合句意，大點(diǎn)聲說(shuō)，結(jié)果每個(gè)人都能聽(tīng)明白你，用連詞so。A．And和； B. So因此； C. But但是； D．Or否則，根據(jù)句意是“否則”的意思，故選D。故選B。解析：B【詳解】句意：遵照老師的指示做，否則你在運(yùn)動(dòng)的時(shí)候會(huì)受傷?？疾檫B詞。 or B．a(chǎn)nd 。八年級(jí)初中英語(yǔ)連詞and,or,but的用法完整歸納一、選擇題1．Follow the teachers39。d like to, ________I have to look after my baby sister.A．because B．a(chǎn)s C．but D．if22．The dress is really beautiful，__________ it is too small for me.A．or B．but C．so D．a(chǎn)nd23．—Would you like to go to the cartoon show with me?—It sounds like fun, ________ I’m too busy.A．so B．or C．for D．but24．Going to the movies is good, ______ I really only like listening to music.A．a(chǎn)nd B．but C．so D．or25．He studies hard all the time, _________ he has made rapid progress in many ways.A．so B．because C．but D．yet26．It’s not always safe to pay over the Internet, you should be careful.A．so . B．a(chǎn)fter . C．because . D．a(chǎn)s soon as27．It was raining heavily, _____ we decided to stay at home and watch TV.A．but B．or C．because D．so28．A snake bit him ___________ he went to see a doctor at once.A．if B．where C．because D．so29．— 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．or30．Romantic edies have not received a lot of love at the box office lately, ____ that could change last weekend with Crazy Rich Asians.A．if B．when C．unless D．but31． Do you like reading history books when you are free? No! I like story books _ _ I almost read them every day.A．a(chǎn)nd B．but C．or D．then32．The F1 driver is hugely talented, ________ he still works hard to achieve his goals.A．so B．but C．if D．though33．Mike recently got a package, ________ he didn’t remember buying anything.A．so B．or C．for D．but34．（江蘇省無(wú)錫市錫北片2017屆九年級(jí)下學(xué)期期中考試）— Are you willing to buy something big like a house from online shops?— It sounds great ______________ I won’t do that.A．but B．unless C．though D．since35．I’d love to go to the theatre tonight, _________ I