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Till【答案】 C 【解析】【分析】句意:——會(huì)議會(huì)持續(xù)多久?——直到我們達(dá)成協(xié)議。C. 【點(diǎn)評(píng)】考查連詞辨析,注意unless的用法。Because【答案】 B 【解析】【分析】句意:雖然他贏得了5億英鎊的獎(jiǎng)金,但他仍然住在一套小公寓里。 【點(diǎn)評(píng)】考查連詞辨析和短語(yǔ)辨析,注意平時(shí)識(shí)記because、since、as和because of的區(qū)別。——越來(lái)越多的人想去那里做生意。B.as【答案】 B 【解析】【分析】句意:——你更喜歡哪個(gè)科目?——我喜歡科學(xué),盡管它很難。C. 【點(diǎn)評(píng)】考查連詞辨析,注意識(shí)記連詞的詞義,理解句意。根據(jù)but I would like to be a ,因此表示我的父母想要我要么成為一名工程師,要么成為一名科學(xué)家。B.;;。untilt leave here _______________ I finish it. A.C.根據(jù)句意此處應(yīng)是直到布萊克先生回來(lái),我們才可以做決定,not…until…,直到……才……,故選C。whilet make a decision D.unlessD. has 根據(jù)語(yǔ)境可知,此處表選擇,用or?!热荒阒皇O乱粡埰?,要么我妹妹要么我和你一起去。C. andUnless。If。13.The environment will be much worse ______everyone has a sense of protecting it. A.if【答案】 A 【解析】【分析】句意:一個(gè)近來(lái)的調(diào)查顯示44%的美國(guó)人想要使用無(wú)人駕駛車,盡管34%的人相信它們會(huì)讓道路更加危險(xiǎn)。B.D.D.D.ififift realize the importance of their health ____ they lose it. A.andB.so。C.D.whenas long as【答案】 A 【解析】【分析】句意:你最好隨身攜帶地圖,以便你不會(huì)迷路。B.;……就;;。although【答案】 C 3.They waited ____ it was dark before leaving, ____ they didn39。B.unless。 because【答案】 B 4.He knows a lot, ________ he is just a child. A.thoughbecauseC.C.unless【答案】 D 9.I don39。C.unless【答案】 D 10.___________three fourths of the Earth39。However【答案】 B 11.A recent survey shows that 44 percent of Americans want to use selfdriving cars, _________ 34 percent believe that they will make the roads mote dangerous. A.becauseA. 盡管;B. 因?yàn)椋籆. 如果,根據(jù)兩句的關(guān)系可知是讓步狀語(yǔ)從句,although:盡管,故選A。C.unlessB. raise raiseneither?!叮艺娴暮鼙?