一、选择题1．Sam won’t make any progress ______ he studies harder than before.A．if B．when C．because D．unless2．—the water was cold , Wei Qinggang jumped into it to save others.A．Although B．When C．If D．Because3．We always don't realize time goes by, ________we're playing games.A．while B．although C．unless D．if4．___________ many people may surf the Internet for the latest news, it is impossible that the newspaper will disappear.A．Beacause B．Though C．Since D．Unless5．He offered________valuable suggestions ________ few people disagreed.A．such, that B．very, that C．so, that D．too, that6．________decision you make, you must be prepared for the worst.A．Whoever B．Wherever C．Whenever D．Whatever 7．—________ will the conversation begin?—________ six o’clock.A．How long; Not until B．How long; UntilC．How soon; Not until D．How soon; Until8．I’ll finish the task, ________ how long it takes.A．even though B．so that C．no matter9．When he , I’ll tell him the news. But I don’t know when he .A．comes; will come B．will come; comesC．comes; comes D．will come; will come10．________ they are sisters, they don’t look the same.A．Though B．Because C．But11．--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 look so sleepy. What’s the matter with you , Carmen?—I’ve been working for ten hours. I am__________tired ___________ I want to sleep.A．so ; that B．such; thatC．between; and D．neither; nor13．If you _______ someone, you invite them to flight or compete with you in some way. A．encourage B．challenge C．introduce14．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．since15．Our teachers have been with us for nearly three years we came to junior high school. We should thank them for what they have done for us.A．until B．before C．since D．while16．__________ what he explains to you, just don’t believe him.A．However B．Even though C．But D．No matter 17．Tim is ______ his twin brother. They are both 180 centimeters tall.A．taller than B．shorter than C．as tall as D．not so tall as 18．— When shall we start?—Let’s wait ________ the rain stops.A．if B．as C．until D．since19．You can’t watch TV ________ you finish your homework.A．after B．if C．when D．until 20．Mother was cooking in the kitchen________ Jack was watching TV in the room.A．if B．as C．when D．while21．I didn't accept his help ________ I wanted to try it myself.A．because B．thoughC．until D．unless22．The policeman asks the child not to cross the street ________ the traffic light turns green. A．when B．until C．because D．after23．Mr.Green doesn’t have any hobbies________ you call watching TV a hobby.A．though B．unless C．because24．Linda was just going out shopping________the telephone rang.A．while B．when C．after D．because25．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．A【解析】【详解】本题主要考查连词辨析，句意：尽管水很冷，但是魏青刚跳进去救别人。
因此用although 引导让步状语从句；When当……时候；If如果；Because因为，故选A。
3．A解析：A【解析】【详解】句意：当我们打游戏的时候，我们总是无法意识到时间的流逝。
考查从属连词以及状语从句。
while当……时，时间状语从句；although尽管，让步状语从句；unless除非，如果不，条件状语从句；if如果，条件状语从句。
当我们玩游戏时候，我们意识不到时间过得很快。
时间状语从句，故选A。
4．B解析：B【解析】句意：尽管许多人通过网络获取最新消息，但是很可能报纸不会消失。
Because 因为，引导原因状语从句；Though尽管，引导让步状语从句；Since自从，引导时间状语从句；Unless除非，引导条件状语从句。
根据两句话之间的逻辑关系可知应选B。
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．D解析：D【解析】【分析】【详解】句意：无论你做什么决定，你必须做好最坏的打算。
考查从属连词词义辨析。
A. Whoever无论谁；B. Wherever无论哪里；C. Whenever无论何时；D. Whatever无论什么。
让步状语从句中根据句意表示无论什么决定。
故选D。
7．C解析：C【分析】【详解】句意：——对话多久后开始？——直到六点才开始。
考查特殊疑问词词组。
how long多长时间，提问一段时间，谓语动词要用延续性动词；begin是瞬间动词，故排除A、B项。
how soon多久以后，经常和一般将来时连用； until 直到……，当主句动词是瞬间动词时经常用否定句，即not.. until。
根据对话可知第二句指直到六点才开始，故选C。
【点睛】how soon多久以后，用“in+一段时间”回答；how long多久，多长时间，用“for+一段时间回答”； how much多少，提问价格；how far多远，提问距离。
how often多久一次，提问频率；how many times多少次，提问次数。
特殊疑问词组的选择主要根据答语来判断。
8．C解析：C【解析】【分析】【详解】句意：我会完成这个任务，无论它花多久的时间。
考查从属连词词义。
even though即使；so that为了；no matter无论。
根据句意表示无论，no matter可以引导让步状语从句。
故选C。
9．A解析：A【解析】试题分析：句意为：他来了我会告诉他这个消息，但是我不知道他什么时候会来。
根据语境可知，第一个when引导的是时间状语从句，主句用一般将来时，从句应用一般现在时；第二个when引导的是宾语从句，表示的是一个即将发生的动作，应用一般将来时。