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2.If our government pay attention to the safety of food, our health in danger.A.isn’t。 is B.doesn’t。 will beC.won’t。 is D.isn’t。 will be【答案】B【解析】【詳解】句意:如果我們的政府現(xiàn)在不注意食品安全,我們的健康就會(huì)出于危險(xiǎn)之中。結(jié)合語境可知,本句主語描述的是將來某時(shí)進(jìn)行的動(dòng)作,故用一般將來時(shí)態(tài)。當(dāng)主句描述將來時(shí)態(tài),if引導(dǎo)的條件狀語從句中用一般現(xiàn)在時(shí)態(tài)表示將來動(dòng)作,結(jié)合語境可知選B。13.I didn39。t realize he was a famous scientist you told me.A.until B.because C.since【答案】A【解析】句意:直到你告訴我,我才知道他是一位出名的科學(xué)家。A. until到…為止;B. because 因?yàn)椋籆. since既然,因?yàn)?。本題考查固定句式not…until…直到……才。其用法是如果(主)句中的謂語是終止性動(dòng)詞,應(yīng)采用“not…until”結(jié)構(gòu),意為“到……時(shí)候才” 根據(jù)句子結(jié)構(gòu),結(jié)合選項(xiàng),故選A。14._______riding shared bikes is an easy way to travel, it also causes some problems.A.Although B.If C.Until【答案】A【解析】【詳解】句意:雖然騎共享單車是一種簡單的旅行方式,但也會(huì)引起一些問題。A. Although盡管,雖然;B. If如果;C. Until直到。根據(jù)下文it also causes some 。根據(jù)題意,故選A。15.___________ she couldn’t see his face, she could tell by his voice that he was young.A.Unless B.If C.Because D.Though【答案】D【解析】【詳解】句意:雖然她看不見他的臉,但是她能夠通過聲音分辨出他很年輕。A. Unless除非;B. If如果;C. Because因?yàn)?;D. Though盡管。根據(jù)語境以及上下文,本題考查的是連詞的用法。結(jié)合句意可知,在這里兩個(gè)句子之間存在一個(gè)相反的讓步關(guān)系,though/although/even though雖然;盡管,引導(dǎo)讓步狀語從句,符合句意。故答案選D。16.—Tom, you look tired this morning. What’s wrong?—I was so busy that I didn’t go to bed _____ 12 o’clock last night.A.until B.when C.though D.unless【答案】A【解析】本題符合notuntil的結(jié)構(gòu),表示直到才,故選答案為A17.—I hear Music and Art will enter the Entrance Examination for the high school.— Yes. but don’t worry. Nothing will be difficult if more attention _____ to them.A.will pay B.will be paid C.is paid D.pays【答案】C【解析】句意:——我聽說音樂和藝術(shù)將進(jìn)入高中入學(xué)考試。——是的。但別擔(dān)心。如果對(duì)他們給予更多的關(guān)注,就不會(huì)有困難??疾楸粍?dòng)語態(tài)。本句是if引導(dǎo)的條件狀語從句,需用一般現(xiàn)在時(shí)態(tài)代替一般將來時(shí)態(tài);從句主語more attention是單數(shù)第三人稱,又是動(dòng)詞pay的受動(dòng)者,需用被動(dòng)語態(tài),即is+paid結(jié)構(gòu);根據(jù)句意語境,可知選C。18.—____ the workers are very tired, _____they keep