一、选择题1．Sam won’t make any progress ______ he studies harder than before.A．if B．when C．because D．unless 2．Li Lei didn’t go to bed his mother came back last night.A．after B．until C．because3．I couldn’t avoid making _______noise, _______I tried my best.A．so much; although B．so many; althoughC．so much; so that D．so many; so that4．—Do you know________the meeting will last?—________the agreement is reached.A．how long; Not until B．when; Not until C．how long; Until D．when; Until 5．He offered________valuable suggestions ________ few people disagreed. A．such, that B．very, that C．so, that D．too, that 6．If it ________ tomorrow, we ________ to have a picnic at the lake.A．doesn’t rain; go B．won’t rain; will goC．doesn’t rain; will go D．won’t rain; go7．I don’t like nuts ________ they are too hard.A．if B．after C．when D．because 8．— What shall we do now?—__________ it’s raining hard, let’s stay at home.A．So B．Since C．Though D．Otherwise 9．一Mom, I took my partner's math book home by mistake. What should I do?一Well, you should call her you can say sorry to her.A．as if B．so thatC．even though D．ever since10．I don’t like science _______it’s difficult.A．but B．so C．because11．--Do you know when ____? I miss him very much.--Don't worry. I will tell you as soon as ____.A．will he come, he comes B．he will come, he comesC．he comes, he will come D．he will come, he will come12．______ you go to Sheshan, you’ll see a famous church and an observatory. A．Although B．What C．If D．Because 13．Now most families h ave only one child _____ our country’s one-child policy. A．so B．because C．because for D．because of 14．___my cousin was practicing the guitar, his elder sister came into the room. A．Since B．While C．Though D．Because 15．I felt very happy, ___________ I didn't win the singing competition.A．though B．if C．so D．because16．The bus driver always says to us: “Don’t get off ______ the bus stops.”A．when B．whileC．until D．if17．Mother was cooking in the kitchen________ Jack was watching TV in the room.A．if B．as C．when D．while18．It was________a difficult task that nobody can finish it on time.A．so B．too C．enough D．such 19．—How’s the weather tomorrow?—I don’t know if it ___________ tomorrow.—Well, if it ___________, I won’t go out with you.A．will rain; will rain B．rains; rainsC．rains; will rain D．will rain; rains20．The policeman asks the child not to cross the street ________ the traffic light turns green. A．when B．until C．because D．after21．Mr.Green doesn’t have any hobbies________ you call watching TV a hobby.A．though B．unless C．because22．Her only problem, ________ you can call it a problem, is that she expects to be successful all the time.A．if B．because C．though D．since23．—My son hardly even eats vegetables________ it’s good for his health.— Not a good habit.A．and B．but C．so D．although 24．There are fewer and fewer tigers in India. The situation will continue _______ humans stop hunting them for their fur and bones.A．if B．unless C．because D．since25．It was ____ bad weather ____ I had to stay at home.A．too, to B．so, that C．such, that D．as, as【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【详解】句意：Sam不会取得任何进步，除非他比之前更努力的学习。
考查连词辨析。
if如果；when当……时；because因为；unless除非。
结合上下句的含义可知此句是unless引导的条件状语从句。
故选D。
2．B解析：B【解析】【详解】句意：李雷昨晚直到他妈妈回来才睡觉。
考查连词辨析。
after在……以后；until：直到；because因为。
连词短语not…until：直到……才……；结合句意可知选B。
3．A解析：A【解析】【详解】句意：尽管我尽力了，但我还是不能避免发出这么大的声音。
考查so many和so much的区别和从属连词辨析。
so many如此多，后面接可数名词复数；so much如此多，后面接不可数名词；although虽然；so that为了，根据第一个空后面的noise是不可数名词可知，应该用so much修饰，排除B和D，由句意可知，although最符合语境，排除C，故选A。
4．C解析：C【解析】【详解】句意：——你知道这场会议将会持续多长时间？——直到达成协议。
考查疑问词辨析以及连词。
How long多长时间；when什么时候，until直到；not until放在句首时，句子要倒装，根据第一个空后面的the meeting will last可知，应该是多长时间，排除B和D，由第二个后面的句子the agreement is reached可知，应该用的是until直到，用来表示时间段，排除A，故选C。
5．A解析：A【解析】【分析】【详解】句意：他提出了如此有价值的建议，很少有人反对。
考查结构状语从句。
such如此的、这样的，是形容词，修饰名词；so如此、这样，是副词，修饰形容词，副词。
句意：他提出了如此有价值的建议，很少有人反对。
故需从选项A和C中选择。
valuable suggestions中心词是名词suggestions，故第一个空要用such，与之搭配的that就填在第二个空格。
故选A。
6．C解析：C【解析】【分析】【详解】句意：如果明天不下雨，我们就去湖边野餐。
考查主从复合句。
根据If it ___ tomorrow, we ___ to have a picnic at the lake.可知此题考查if 引导的条件状状语从句，遵循主将出现的原则，即主句用一般将来时，从句用一般现在时；根据句意：如果明天不下雨，我们就去湖边野餐。
从句用否定形式，rain为实意动词根据it可判断，需要加否定助动词 doesn't，动词用原形 rain，排除B、D选项；主句用一般将来时，即will+动词原形，排除A选项；故答案选C。
7．D解析：D【解析】【分析】【详解】句意：我不喜欢坚果，因为他们太硬了。
考察原因状语从句。
if表示如果，after表示在….之后，when当….时候，because因为。
根据句意，这里表示因果关系，所以选D。
8．B解析：B【解析】【分析】【详解】句意：——我们现在该做什么？——既然雨下得这么大，就让我们呆在家里吧。
考查原因状语从句。
A. so 因此，所以，表示结果；B. since 既然，由于，自……以来，表示原因或时间；C. though虽然，尽管，引导让步状语从句；D. otherwise 否则。