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Unit 3 Language in use再识再识if从句从句 在上一模块我们结识了在上一模块我们结识了“if条件状条件状语从句语从句 + 祈使句祈使句”结构。今天我们继结构。今天我们继续学习续学习if从句，请看下面的例句。从句，请看下面的例句。A. You must see the doctor if you are ill. 如果你生病了，你必须去看医生。如果你生病了，你必须去看医生。B. I will go there with you if it doesnt rain tomorrow. 如果明天不下雨如果明天不下雨, 我将和你一起去那。我将和你一起去那。C. If you dont study harder, you wont pass the exam. (= Study harder, and you will pass the exam.) 如果你再努力些，你就会通过考试。如果你再努力些，你就会通过考试。D. If you dont hurry, youll miss the plane. (= Hurry up, or youll miss the plane.) 如果你不快点儿如果你不快点儿, 你就赶不上飞机了。你就赶不上飞机了。【归纳【归纳】一、从呼应中看时态一、从呼应中看时态 1. 如果主句是一般现在时如果主句是一般现在时(包括含有情包括含有情态动词态动词can, may, must等等), 从句也可用一从句也可用一般现在时。般现在时。 2. 如果主句是一般将来时如果主句是一般将来时, if条件状语条件状语从句不用将来时态从句不用将来时态, 而要用一般现在时。而要用一般现在时。二、从转换中看同义二、从转换中看同义 “祈使句祈使句 + and / or + 简单句简单句”是一个是一个固定结构，这里祈使句相当于一个由固定结构，这里祈使句相当于一个由if 引导的条件状语从句。用引导的条件状语从句。用and引导的简引导的简单句常表示一个较好或理想的结果；单句常表示一个较好或理想的结果；用用or 引导的简单句常表示一个不愉快引导的简单句常表示一个不愉快或不理想的结果；简单句中的谓语动或不理想的结果；简单句中的谓语动词常用一般将来时。词常用一般将来时。【运用【运用】I. 请用括号内所给动词的适当形式填空。请用括号内所给动词的适当形式填空。1. If she _ (study) harder, she will catch up with us soon. 2. Sally _ (see) a film if she _ (be) free next Sunday. 3. If you _ (drive) too fast, you may have an accident.drive studieswill seeisII. 同义句转换同义句转换, 每空一词。每空一词。1. If you cross the bridge, youll find the park. _ _ _ , _ youll find the park. 2. If you dont take a taxi, youll miss your plane. _ _ _ , _ youll miss your plane.orCross the bridgeandTake a taxiREWRITE THE SENTENCES, USING IF.Example:Listen in class, or you wont understand what to do. If you dont listen in class, you wont understand what to do.1. Eat some breakfast, or youll get hungry at school. _ _2. Hurry up! Well be late! _If you dont eat some breakfast, youll get hungry at school.If you dont hurry up, well be late.3. Read the instructions carefully. Then youll know what to do. _If you read the instructions carefully,you will know what to do.COMPLETE THE SENTENCES. GIVE ADVICE WITH THE CORRECT FORM OF THE WORDS.Example:- I want to get high scores.- If you work hard, you will get high scores. (work hard/ get high scores)1. -How can I remember my friends birthdays? - If _ _. (keep a note in your diary/not forget) you keep a note in your diary, you wont forget2. - Its late, but I dont want to go to sleep. - If _ _. (not get enough sleep/ feel tired at school) you dont get enough sleep, you will feel tired at school3. - I dont like speaking English outside the classroom. - If _ _. (not practice/ not improve) you dont practice, you wont improve4. -Should I tell my teacher I dont understand the work? - If _ _ (not tell her/ she not able to help you) you dont tell her, she wont be able to help you.5. - Is it OK if I watch TV for six hours? - If _ _. (you watch too much TV/ eyes hurt) you watch too much TV, your eyes will hurt.COMPLETE THE SENTENCES SO THAT THEY ARE TRUE FOR YOU.1. Ill be really happy if _.2. Well do well in English if _.3. My parents will be disappointed if _.4. If it rains next Saturday, _.5. If I get some money for my birthday, _.Complete the conversation with the words and expressions in Activity 4.Answers:1. _ 2. _3. _ 4. _ 5. _ 6. _ 7. _ 8. _terriblepocket moneyproblemrefusedkeepproudmendhonestComplete the passage with the correct form of the phrases in Activity 5.Answers:1. _ 2. _3. _ 4. _ 5. _ 6. _ 7. _angry withgood atspend timeAt leastbe proud ofat the end ofAfter all1. feel sorry for sb. 同情某人同情某人2. find+sth.sb.+adj. 发现发现怎么样怎么样3. copy ones homework 抄作业抄作业4. instead of 代替代替5. see sb. doing 看到某人正在做看到某人正在做6. steal sth. from sb. / sp. 从某人从某人/某地偷某地偷7. tidy up 整理整理Choose one of the problems and write a reply. Say what will or wont happen in each possible situation.Possible answer for problem C.You are quite right when you say that copying is dishonest and you shouldnt let Peter copy your work for that reason.However, there is another good reason for not doing it: if Peter really is yourfriend and you really do want to help,copying will do the opposite. He will learn nothing and never get any better at maths. If you want to help him, why dont you spend some time explaininghow to do the problems, and helping him to work them out? You say he workshard help him to do so in the right way, and your friendship will be stronger, and you will respect each other more.Listen to the conversations. Do the speakers give the same advice as you?What do the speakers think will happen if1. Kate doesnt tell the manager about the boy stealing?Shell lose her job.2. The manager finds out that Kate was doing her homework instead of tidying the shelves?3. Susan tells the teachers what Linda wants her to do?The manager will be angry.Linda will lose her part and Susan will lose her friend.4. Susan refuses the biggest part in the play?Shell lose the chance to make her parents proud of her.5. Helen lets Peter copy her work?6. Helen tells Peters parents about his problem?Shell be dishonest herself.Theyll be able to help him.1. An “agony aunt” is a helpful person.2. In the past, an “agony aunt” was usually an old woman.请阅读请阅读Around the world部分，判断下部分，判断下列各句正列各句正(T)误误(F)。TT3. An “agony aunt” only appears on magazines or newspapers.4. Actually, all the problems and answers are not real.5. Readers can help each other by giving advice on the Internet now.TFFExercisesI. 请根据句意用括号内所给单词的适请根据句意用括号内所给单词的适当形式填空。当形式填空。1. I had a bad day yesterday because someone_ (steal) my purse.2. If you want to say somebody is not honest, you can use the word “ _ (honest)”.stoledishonest3. Put the books back onto those _ (shelf) if you have finished reading them.4. My shoes were _ (break) when I fell down from my bike. 5. If you dont tell him the truth, he will be even _ (angry) with you.angriershelvesbrokenII. 连词成句。连词成句。1. Linda, make, refused, friends, him, to, with _2. if, forget, notes, soon, you, dont, you, will, take, it _ _Linda refused to make friends with him.If you dont take notes, you will soon forget it.3. a, pity, that, pass, you, the, didnt, its, exam _4. my, virus, computer, goes, has, because, it, a, wrong _Its a pity that you didnt pass the exam.My computer goes wrong because it has a virus. 请用请用 if 合并下列句子。合并下列句子。1. We will have a picnic tomorrow. It wont rain tomorrow. _2. You are not tired. Lets go for a walk._We will have a picnic if it doesnt rain tomorrow.If you are not tired, lets go for a walk.3. Hurry up! You will be late. _4. He will leave for New York. It will be fine tomorrow. _If you dont hurry up, you will be late. He will leave for New York if it is fine tomorrow. 5. You sleep late tonight. You will feel tired tomorrow. _ _If you sleep late tonight, you will feel tired tomorrow.Writing a problem page for a magazine Work in pairs. Think of and write a problem. Work in groups. Read your problem to the group. Discuss advice for each problem.
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