一、选择题1．If you _______ someone, you invite them to flight or compete with you in some way. A．encourage B．challenge C．introduce2．—the water was cold , Wei Qinggang jumped into it to save others.A．Although B．When C．If D．Because3．________ haburgers are junk food, many children still like them.A．If B．Unless C．Because D．Although4．I watched the World Cup in a bar last night and I home 1:00 in the morning. A．go; until B．went; untilC．didn’t go; until D．won’t go; until5．You will never get anywhere you set a goal. So whatever we do, we should first have a goal.A．unless B．because C．though6．Jenny often eats a lot of fruit andvegetables_______she knows they are good for health.A．because B．but C．or7．Amy is_______ careful that she made_______ mistakes in her last exam.A．so; so few B．such; so little C．so; such few D．such; such little 8．—I’m afraid I can’t finish the job in such a short time.—Don’t worry. Can you do it if you_______ two more hours.?A．give B．are given C．will give D．will be given 9．— Would you please ask Tom to come to my office?—Sure, I will tell you about it as soon as he _______back tomorrow.A．will come B．came C．comes D．is coming 10．--______ will the discussion last?--______ we reach an agreement.A．How long; Not until B．When; Not untilC．How long, Until D．When, Until11．I don’t like science _______it’s difficult.A．but B．so C．because12．—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 it________tomorrow, I’ll go fishing.— May I go along with you?A．didn’t rain B．won’t rain C．doesn’t rain 14．Joan was walking in the street________ she saw the accident.A．when B．while C．after D．before 15．Sam won’t make any progress ______ he studies harder than before.A．if B．when C．because D．unless 16．—Are you going to Mary’s party tonight?—No, I won’t go__________ you go.A．because B．when C．unless D．though 17．—The air pollution is terrible.—It will be worse _____ everyone plays a part in saving the environment.A．If B．unless C．until18．The bus driver always says to us: “Don’t get off ______ the bus stops.”A．when B．whileC．until D．if19．It was________a difficult task that nobody can finish it on time.A．so B．too C．enough D．such 20．—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; rains21．—Why do you sell old books?—I sell them________ raise some money for the poor students.A．in order that B．in order to C．so that D．because of 22．The policeman asks the child not to cross the street ________ the traffic light turns green. A．when B．until C．because D．after23．It ________ heavily when I left the movie theater.A．rains B．was raining C．is raining D．will rain 24．—It’s raining heavily outside.—So stay here and don’t go out ______ it stops.A．when B．until C．if25．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 come【参考答案】***试卷处理标记，请不要删除一、选择题1．B【解析】句意：如果你挑战某人，你会邀请他们去战斗或者和他们在某方面竞争。
A. encourage鼓励；B. challenge挑战；C. introduce介绍。
根据句意：你邀请他们去战斗或者和他们在某方面竞争，可知是“如果你挑战某人”，“挑战”challenge。
分析题干可知这是if引导的条件状语从句，要遵循“主将从现”的原则，所以if从句要用一般现在时，故答案选B。
2．A解析：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．D解析：D【解析】句意：虽然汉堡包是垃圾食品，但是很多孩子们还是喜欢他们。
if如果，引导条件状语从句；unless除非，如果不，引导条件状语从句；because因为，引导原因状语从句；although虽然，引导让步状语从句。
根据句意可知，这两句话之间是转折的关系，故应选D。
4．C解析：C【解析】【详解】句意：我昨晚在一个酒吧看世界杯，直到凌晨1点才回家。
考查连词。
根据时间状语last night，可知用一般过去时，所以排除AD；根据句意，可知是not…until…引导时间状语从句，意为“直到……才……”，故选C。
5．A解析：A【解析】【详解】句意：除非你设定一个目标，否则你永远也到不了任何地方。
所以无论我们做什么，我们首先应该有一个目标。
考查连词。
unless除非；如果不； because因为；though尽管，虽然。
根据“You will never get anywhere”可知下文是unless引导的让步状语从句，此处是“除非你树立目标”，根据题意，故选A。
6．A解析：A【解析】【详解】句意：Jenny经常吃很多蔬菜和水果，因为她知道它们对健康有利。
本题考查连词。
A. because 因为，表原因； B. but但是，表转折； C. or或者，表示选择。
分析句子知，“Jenny经常吃很多蔬菜和水果”，是结果，“她知道它们对健康有利”表示原因；故选A。
7．A解析：A【解析】【详解】句意：艾米如此小心，以至于她上次考试很少出错。
so+形容词或副词+that从句，表示如此……以至于……；排除BD；few很少，修饰可数名词复数，表示否定意义；little很少，修饰不可数名词，表示否定意义；mistakes是可数名词复数；few很少，和so连用；so few mistakes表示如此少的错误；排除C；根据题意，故选A。
8．B解析：B【解析】【分析】【详解】句意：——我担心我不能在这么短的时间里完成工作。
——不要担心，如果再多两个小时，你做得到吗？考查if引导的条件状语从句。
give给，原形；are given被给，被动语态；will give将会给，将来时；will be given将会被给。
在if引导的状语从句中，用一般现在时代替一般将来时；主语you是动作的承受者，所以用被动语态。
故选B。
9．C解析：C【解析】【分析】【详解】句意：——你能叫汤姆来我办公室一趟吗？——当然，他明天一回到办公室我就跟他说。