1UnitUnit 5 5 GrammarGrammar学校_ 班级_ 姓名_ 家长签字_一一 教学目标教学目标1.掌握 because,since,as 引导的原因状语从句的用法，并能熟练、准确地使用；2.能运用所学完成相关的语法练习；3.通过合作学习，培养团结互助的团队精神。教学重点、难点教学重点、难点1. 掌握文中四会词汇以及相关的短语和句型；2. 能灵活运用原因状语从句解决实际问题；二、词汇、短语二、词汇、短语1think highly of 高度评价2be open to 对开放3out of breath 上气不接下气 breath n./breathe v.4last for 持续5One and a half hours=one hour and a half 一个半小时3 3、句型（语法）句型（语法） 1.I like listening to music because it makes me feel relaxed.2.Since he had no musical instruments then, he made music with common objects like stones and paper.3.As he likes the sounds of nature, Tan uses them a lot in his music.2九年级上册九年级上册 UnitUnit 5 5 GrammarGrammar 学案学案学校_ 班级_ 姓名_ 家长签字_【课前导学课前导学】一、翻译下列短语一、翻译下列短语1.世界著名的作曲家_ 2.高度评价_3.拉小提琴 _ 4.对开放_5.上气不接下气_6.持续一个半小时_7.学生艺术展_ 8.急忙进入_ 二、翻译下列句子1.We stayed at home because it rained._2.He walked to the company because his bike was broken._3. Since I know very little Japanese, I cant catch what you said._4. As Mingming was not ready, we went without him._【课堂学习课堂学习】Step 1. One-minute talk. Step 2. Watch and find Ask students to find more sentences using as, since ,because, because ofStep 3. Discuss and work out the rules A.A. Giving reasons with becausebecause1) because 语气最强，表直接原因，回答 why 的问题。通常放在主句之后，可单独使用。如：Why do we learn English? We learn it because we want to have a better future.2) because 可引导表语从句等。1.It is because youre eating too much.32.Have you ever walked into a room and felt relaxed?3. It could be because the walls were painted blue.3) because of 也可表达直接的原因，只不过其后接名词、代词或动名词。(1) He cant come b ecause of his illness.(2) He is here because of you.4) because 习惯上不与 so 连用汉语习惯上说“因为所以” ，但英语习惯上却不能将 so 与 because 连用：因为我病了半年，所以把工作丢了。误：Because I was ill for six months, so I lost my job.正：Because I was ill for six months, I lost my job.正：I was ill for six mont hs, so I lost my job.B. Giving reasons with since and assince 侧重主句，意思是“既然；由于；因为” ，表示已知的、显然的理由，since 比 as 语气稍强，且比 as 略微正式，它们引导的从句通常放在主句之前，有时也放在主句之后。不表示直接原因。Since 可用于省略句，而其他连词不行。 （见例 2）1. Since everyone is here, lets start2. Since so, I have nothing to say.3. Since you are wrong, you should say sorry.as 鉴于主从并重，从句说原因，主句说结果 。1. As it is late. I must go 2. As you were not there, I left a message.asas 和和 sincesince 的用法大体相同，表示附带说明的的用法大体相同，表示附带说明的“双方已知的原因双方已知的原因”或者理由不是很重要，但或者理由不是很重要，但语气更弱，没有语气更弱，没有 sincesince 正式，常译为正式，常译为“由于，鉴于由于，鉴于” 。As it is raining, youd better take a taxi. 既然在下雨，你最好乘出租汽车。As you are tired, you had better have a rest. 既然累了，你最好休息一下。 Step 4. Practice：1) 用 as, since ,because, because of 填空(1) Mary missed the train_ she arrived late.(2) It will rain, _ the sky is dark.(3) _ we live near the river, we can often go swimming in summer.4(4) Why do you like English? _ its so interesting.(5) _ a good teacher, he worked very hard.(6) _ the heavy rain, we had to stay inside.(7) _ it is Sunday today, you dont need to get up early.(8) _you broke his glasses, you should say sorry to him.【课后拓展课后拓展】一、填空1. -Why are you late?-_(因为) I missed the early bus.2._(因为）illness , my uncle didnt go to work.3._ (由于）the water here is polluted, even animals cannot drink it.4._(既然）you are sick, you should have a good rest at home.二、选择题（ ）1.Why was he late for school? _ he got up too late. A. Because B. Since C. As D. For （ ）2.“Is David at school today？“No, he is at home _he has a bad cold.“ A. because B. since C. as D. for （ ）3.It rained last night, _ the ground is wet. A. because B. since C. as D. for （ ）4. _ you are wrong, you should say sorry to him.A. As B. Since C. because D. For（ ）5._ everybody knows about it, I dont want to talk any more.A. For B. Even C. Since D. Because（ ）6.I like Han Mei_ she is kind and helpful.A. so B. since C. because D. as（ ）7. My Chinese teacher is very knowledgeable _ she reads lots of books.A. but B. so C. because D. although（ ）8. _ you are unable to answer， perhaps we should ask someone else.A. Because B. Before C. Since D. After（ ）9 _ we are both tired, lets just grab a takeaway(叫外卖).5A. / B. When C. Because D. As ( )10.Tony never spends money on books _ he doesnt like reading.A. but B. because C. though D. until( ) 11._ everyone is here, lets start our meeting.A. Since B. If C. But D. As( )12._the girl is 22, she takes care of her mother and cooks meals every day.A. If B. But C. Though D.