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r【答案】 B 10.Yesterday morning AsAlthoughButso that【答案】 D 9.___________three fourths of the Earth39。thoughifbecauseD.becauseB.ifD.afterB.whilebecause【答案】 C 6.How can we improve our environment a lot C.whetheruntil【答案】 D 5.—Mom, I want to be an engineer when I grow up. —Son, your dream will not e true _____ you keep trying your best.A.whenafterbecausenor【答案】 B 4.Some people won39。butandor but also【答案】 A 3.Giveme your address, _______I39。C.Both。Neither。弄清所給連詞意思,然后根據(jù)上下文的聯(lián)系確定所使用的連詞。根據(jù)常識(shí)可知在夏天食物放在冰箱才不會(huì)馬上變質(zhì),此處是unless引導(dǎo)的條件狀語從句,故選B。when【答案】 B 【解析】【分析】句意:在夏天,食物會(huì)很快的變質(zhì),除非我們把它放進(jìn)冰箱里。as soon asunlessif英語連詞專題練習(xí)(及答案)含解析一、初中英語連詞1.In summer, food will go bad quickly we put it into a fridge. A.B.C.D.if 如果;unless除非;as soon as一……就……while當(dāng)……的時(shí)候。 【點(diǎn)評(píng)】此題考查連詞辨析。2.—My parents are crazy about Running Man. How about your parents? —_________ my dad _________ my mum likes it. Instead, they prefer The Voice of China.A. norB. andNot only。ll send you the form. A.B.C.D.t realize the importance of their health ____ they lose it. A.B.C.D.whenB.unlessD.each of us does something useful for it? A.untilC.unless【答案】 D 7.The situation is being more serious ________________ we do something to save the Earth. A.whenC.unless【答案】 D 8.She got up very early that day __________ she could catch the first train. A.B.C.D.s surface is covered with wat