译林版9年级英语上册教案课件-第5课-Unit5-Grammar精品教学案.doc

Unit5 Grammar精品教学案【课前导学】1. 预习P70-71后，翻译下列句子：1）We stayed at home because it rained.2）Why didn’t he come? Because he was ill.3）My stomach hurts because I have eaten too many apples.4）---Why do you love her? ---Because she is kind.5）He walked to the company because his bike was broken.6) Since I know very little Japanese, I can’t catch what you said.7) As Mingming was not ready, e went without him.8) Since the outbreak of the Ebola in West Africa, many people are afraid to travel to Africa.【课堂学习】1. Check the answers.2. Lead-inAsk the question “why do you come to school?”3. PresentationA. Giving reasons with because1) 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 you’re eating too much.(2) Have you ever walked into a room and felt relaxed? 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 can’t come because 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 months, 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, let's 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.as和since的用法大体相同，表示附带说明的“双方已知的原因”或者理由不是很重要，但语气更弱，没有since正式，常译为“由于，鉴于”As it is raining, you’d 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 4. Exercises1) 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) Why do you like English? _____________ it’s 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 don’t need to get up early.(8) ___________you broke his glasses, you should say sorry to him.2) 根据汉语完成句子（1）我喜欢唱歌，因为它能使我快乐。

I like singing______________________________________________________________.(2) 由于她擅长舞蹈，她就为我们跳了一曲 _______________________________________, she danced for us.(3) 由于她起迟了，她气喘吁吁赶到学校she got up late, she hurried to school ____________________.(4) 因为他工作努力，他的老板对他很满意5) 王先生不能出国，因为他丢了护照Mr Wang cannot go aboard _____________________ he has lost his passport.(6) 由于我口渴，我想先喝点水I was thirsty, I wanted to have something to drink..3）选择填空( ) 1.Tony never spends money on books ______ he doesn’t like reading. A. but B. because C. though D. until( ) 2.____ everyone is here, let’s start our meeting. A. Since B. If C. But D. As( ) 3._____the girl is 22, she takes care of her mother and cooks meals every day. A. If B. But C. Though D. As【课后拓展】一、 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二、填空1. ----Why are you late? ----________(因为) I missed the early bus.2.______________(因为）illness , my uncle didn’t 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.三、完成句子1. 因为他太忙，所以他没去开会。

he was very busy, he didn’t _________ the meeting.2. 既然大家都在这儿，咱们就开始讨论这个话题吧 everyone is here, let’s _______ ______________ the topic.3. 由于我不擅长唱歌，我就没有参加歌舞表演 I was not good at singing,, I didn’t take part in the song and dance show.4. 既然Tom病了，他今天就不跟我们去钓鱼了 Tom is ill, he is not going__________ with us today.四、根据首字母提示完成短文“China Dream” is a hot topic of this year. Many Chinese young people are inspired by the China Dream. Everyone has their o_____ dream. They give us courage and confidence to keep us going t_________ difficulties. Here is some advice on how to r__________ our beautiful dreams. Never g______ up is the key to make our dreams come true. We may fail from time to time, but we can learn from failure, correct our mistakes and try again until we。