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這里是if引導(dǎo)的條件狀語從句,遵循主句用一般將來時,從句用一般現(xiàn)在時態(tài),根據(jù)題意,故選C。30.Our eyesight will bee poorer and poorer we keep playing with phones.A.though B.unless C.if【答案】C【解析】【詳解】句意:如果我們繼續(xù)玩手機,我們的視力會越來越差。A. unless除非,引導(dǎo)條件狀語從句;B. until直到……才……,引導(dǎo)時間狀語從句;C. since由于,引導(dǎo)原因狀語從句;D. although盡管,引導(dǎo)讓步狀語從句。29.“A white elephant” means something that is useless, ___________ it may cost a lot of money.A.unless B.until C.since D.a(chǎn)lthough【答案】D【解析】【詳解】句意:“白象”指的是無用的東西,盡管它可能要花很多錢。不才 從…以來。C. when當 直到…才。本題考查連詞。28.We don39。(引導(dǎo)讓步狀語從句);(引導(dǎo)原因狀語從句);(引導(dǎo)條件狀語從句);,但是(后加逗號)。故選C。26. Tom failed in the exam ag ain ______ he tried his best.A.if B.unless C.though D.because【答案】C【解析】試題分析:句意:盡管他盡了最大努力,湯姆在考試中又不及格。根據(jù)句意可知,這是一個條件狀語從句,故應(yīng)選C。是的,只要我們勇敢的走出去,我們就會發(fā)現(xiàn)它并不是這么難??键c:考查連詞的用法。such+(a/an)+(形容詞)+名詞,但名詞前有few,little,many,,故排除A,such…that…如此的……以至于……。24.It was ______ lovely weather ______ we decided to spend the day on the beach.A.such a; that B.such; that C.such; as D.so; that【答案】B【解析】試題分析:句意:是那么好的天氣,以至于我們決定在沙灘上度過那一天的時光??疾閯釉~時態(tài)。23.Today’s young people can’t live without smart phones. They keep their hands on the phones whenever they go, even while they_______meals.A.had B.will haveC.a(chǎn)re having D.were having【答案】C【解析】【詳解】句意:今天的年輕人沒有智能手機就活不下去。分析句意可知,他們雖然很累,但很快樂,前半句是讓步狀語從句,用Although。考查連詞辨析。故選B。她說的那么快以至于我聽得不是太清楚。A. if 如果; B. though 盡管 C. for 因為,為了; D. since自從;根據(jù)Little Jack has learned to do lots of things on his own , 和he is only four years ,所以用 though 引導(dǎo)讓步狀語從句;故選B21.Did you catch what the teacher said?No. She spoke so fast _______ I couldn’t hear her very clearly.A.which B.that C.when D.since【答案】B【解析】考查從句的連接詞。考點:考查連詞辨析。A.unless如果不,除非;引導(dǎo)條件狀語從句;B.once一旦……,引導(dǎo)條件狀語從句;C.when當……時,表示兩個動作同時發(fā)生,主句一般使用過去時,從句使用過去進行時;D.while當……時,表示兩個動作同時發(fā)生,后跟延續(xù)性動詞,從句一般使用進行時態(tài),表示一段時間。如:They got up early so that they could catch the early bus. 為了能趕上早班車,他們早早就起床了。2) He ran so fast that I couldn’t catch up with him. 他跑得那么快,我沒趕上他?!军c睛】so…that…引導(dǎo)結(jié)果狀語從句,so后面加形容詞或副詞,其意為“如此……以至于……”。as+形容詞或副詞原級+ as意思是“與……一樣”,用于原級比較?!彝饽?