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今天,許多人處于亞健康狀態(tài),為什么?——是的。他們長(zhǎng)時(shí)間很累,因?yàn)樗麄兠τ诠ぷ?,每天很少鍛煉??疾檫B詞辨析。because因?yàn)?,表原因;until直到,表時(shí)間;though盡管,表讓步;or或者,表轉(zhuǎn)折。本句是原因狀語從句,前果后因;根據(jù)句意結(jié)構(gòu)和語境,可知選A。12.He doesn39。t tell me when he_______ . I39。ll telephone you as soon as he______.A.will e。es B.will e。 will eC.es。 will e D.es。 es【答案】A【解析】試題分析:句意:他沒告訴我什么時(shí)間回來。他一回來我就告訴你。賓語從句中表示將來,用將來時(shí),而狀語從句中多用一般現(xiàn)在時(shí)表示將來時(shí);故選A??键c(diǎn):考查時(shí)態(tài)的用法。13.— Do you think Jack will catch up with us?— I believe he loses himself in puter games.A.If B.Unless C.Or D.But【答案】B【解析】【詳解】句意:—你認(rèn)為杰克會(huì)趕上我們嗎? —我認(rèn)為會(huì),除非他沉迷于電腦游戲。A. If如果;B. Unless除非;C. Or否則;D. But但是。根據(jù)本題語境,可知,回答為如果他不沉迷于電腦游戲,他就能趕上我們,如果不,即為除非。故選B。14.I won39。t go he es back.A.until B.while C.when D.why【答案】A【解析】句意:直到他回來,我才走。A. until 直到; B. while當(dāng)時(shí)候; C. when當(dāng)時(shí)候; D. why為什么;notuntil 直到才;故選A15.Now most families have only one child _____ our country’s onechild policy.A.so B.because C.because for D.because of【答案】D【解析】【詳解】句意:由于我們國(guó)家的獨(dú)生子女政策,現(xiàn)在大多數(shù)家庭只有一個(gè)孩子。so 所以;because 因?yàn)?,引?dǎo)原因狀語從句;because for 不符合英語表達(dá)習(xí)慣;because of因?yàn)?,由于,后面不能加句子,只能加詞或短語, 所以選D。16.Cathy is afraid of the dog. She will run away _______she sees it.A.ever since B.a(chǎn)lthough C.a(chǎn)s soon as D.so that【答案】C【解析】【詳解】句意:凱西害怕狗,她一看到狗就跑了??疾檫B詞辨析。A. ever since自從;B. although雖然、盡管;C. as soon as一…就;D. so that以便;所以。根據(jù)Cathy is afraid of the dog. 凱西害怕狗,可推知是她一看到狗就跑開了,結(jié)合選項(xiàng)可知C選項(xiàng)符合題意,故答案選C。17.Did you call Sara back ? I didn’t need to ,_____ we’ll have a meeting together tonight.A.though . B.unless C.because D.if【答案】C【解析】【詳解】句意:——你給薩拉回電話了嗎?——我不需要給薩拉回電話,因?yàn)槲覀兘裢硪黄鹩袀€(gè)會(huì)議??疾檫B詞辨析。though雖然,盡管;unless除非;because因?yàn)椋籭f是否,如果。根據(jù)句意可知前后句是因果關(guān)系,故選C。18.Has the meeting begun yet?Not yet. We have to wait everyone is here.A.a(chǎn)nd B.until C.or D.but【答案】B【解析】【詳解】考