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B.unless C.if【答案】C【解析】【詳解】句意:如果我們繼續(xù)玩手機(jī),我們的視力會(huì)越來(lái)越差。unless如果不,除非,引導(dǎo)條件狀語(yǔ)從句;when當(dāng)……時(shí)候,引導(dǎo)時(shí)間狀語(yǔ)從句;even though盡管,引導(dǎo)讓步狀語(yǔ)從句;so that以便,因此,結(jié)果,引導(dǎo)目的或結(jié)果狀語(yǔ)從句。17.It’s much easier for us to bee friends________ we share similar interests.A.unless B.when C.even though D.so that【答案】B【解析】【詳解】句意:當(dāng)我們分享相似的興趣愛(ài)好時(shí),對(duì)于我們來(lái)說(shuō)成為朋友更加容易一些。while后跟進(jìn)行時(shí)態(tài),主句時(shí)態(tài)是一般現(xiàn)在時(shí),可知while后面的從句時(shí)態(tài)用現(xiàn)在進(jìn)行時(shí)??疾榫渥訒r(shí)態(tài)。16.——Today’s young people can’t live without smart phones.——They keep their hands on the phones wherever they go, even while they meals.A.have B.a(chǎn)re havingC.were having D.will have【答案】B【解析】【詳解】句意:——今天的年輕人沒(méi)有智能手機(jī)無(wú)法生活。露西呆在家里沒(méi)有來(lái)是因?yàn)榘l(fā)高燒的原因。15.— Is everyone here today?— No, Lucy is at home ________ she has got a high fever.A.because B.if C.until D.unless【答案】A【解析】【詳解】句意:——今天大家都到齊了嗎?——沒(méi)有,露西因?yàn)榘l(fā)高燒呆在家里了。Not…until直到……才,是一個(gè)固定句型,所以選A。14.Mom, shall we have supper now?Oh, we won’t have supper_______ your dad es back.A.until B.since C.while D.a(chǎn)fter【答案】A【解析】試題分析:句意:媽媽,我們現(xiàn)在吃晚飯好嗎? 哦,直到你爸爸回來(lái)我們才可以吃晚飯。because因?yàn)?,引?dǎo)原因狀語(yǔ)從句;since自從,引導(dǎo)時(shí)間狀語(yǔ)從句;既然,引導(dǎo)原因狀語(yǔ)從句;if如果,引導(dǎo)條件狀語(yǔ)從句;unless除非,如果不,引導(dǎo)條件狀語(yǔ)從句。t leave her patients________she39??键c(diǎn):考查動(dòng)詞的時(shí)態(tài)。是的,但是如果下雨的話,我們將改去參觀博物館。 rains D.will you have。 will rain B.you will have。根據(jù)題意,故選B。我認(rèn)為在火車(chē)上我們可以欣賞一些美麗的景色。m free.So do I. I think we can enjoy something beautiful on the trainA. before B.when C. after D. though【答案】B【解析】【詳解】句意:當(dāng)我有空的時(shí)候,我通常選擇乘火車(chē)去旅行。本句是原因狀語(yǔ)從句,前果后因;根據(jù)句意結(jié)構(gòu)和語(yǔ)境,可知選A??疾檫B詞辨析。10.Today, many people are in subhealth(亞健康), why?Yes. They are so tired long time ________ they are busy with their work and exercise little every day.A.because B.until C.though D.or【答案】A【解析】【詳解】句意:——今天,許多人處于亞健康狀態(tài),為什么?——是的。 is invited【答案】D