Date: 07/09/2007 Period 3+4: ADVERB CLAUSES OF REASON I.Kiến thức cơ bản: Giúp học sinh nắm được cách sử dụng mệnh đề trạng ngữ chỉ lí do với: because, as, since Ba is tired / because he stayed up late watching TV Main clause adverb clause of reason Mệnh đề trạng ngữ chỉ lí do có thể đứng trước hoặc đứng sau mệnh đề chính Ex: I didn’t go to the cinema last night because I was tired. Because I was tired, I didn’t go to the cinema last night. Ngoài cách dùng “because” ùchúng ta còn sử dụng as, và since trong mệnh đề trạng ngữ chỉ lí do.Tuy nhiên cần chú ý đến 1 số điểm khác biệt nhau: -Chúng ta dùng “ because” chứ không dùng as khi trả lời câu hỏi WHY Ex: Why did you go? I went because Tom told me to go - Khi lí do trở nên rõ ràng hoặc đã được biết từ trước, người ta thường sử dụng AS Ex: As you are here. You can give me some help II. Bài tập mẫu: a. I didn’t go to the cinema last night .I was tired - I didn’t go to the cinema last night because I was tired b. He gets bad marks . He is not good at literature - He gets bad marks because he is not good at literature. c. He is poor. He can’t afford send his children to a good school. - As he is poor, he can’t afford send his children to a good school d. He isn’t allowed to drive a car. He is too young. - He isn’t allowed to drive a car since he is too young III. Vận dụng: * Bài tập bám sát: Combine these pairs of sentences. Use because,since or as e. The water is highly polluted. We cannot swim in this part of the river. f. The company does not produce recycled paper. It is more expensive to produce them regular paper g. We want people to be aware of the problem of pollution. We have “ a green week” three times a year. h. The area around the beach is full of trash . No one wants to go swimming or sunbathing there. i. It started to rain. We could not keep on cleaning the beach j. Mr. Minh is admired. He dedicates all his life to protecting the Environment. *Bài tập nâng cao: 1. Match the sentences in column A with the sentences in column B use “because” A B 1. She walked carefully 2. He is now 17 years old 3. I had no idea how it worked 4. They were going to have a party a.He can learn to drive b. “ Hello, again”, was an old thing to say c. The prices at home were high d. The streets were covered in ice 5. They had to buy the machine abroad 6. They had never met before e. They had been married for ten years f. I had to ask for help 2. Make complete sentences using the cues. Then combine the two sentences with because / as / since a. He / must / punish / polite. He / drive / too / fast. b. Tom / try / learn / English. He / want / travel / England. c. My class / happy. We / win / football / match / last Saturday. d. Her parents / extreme / worried. She / can / not/ pass / entrance exam. e. Air / pollute / serious. People /not / know / protect / forests. IV. Củng cố: Giáo viên nhắc lại cách sử dụng because, as, since cho học sinh nghe V. Hướng dẩn bài tập về nhà: - Làm hoàn chỉnh các bài tập vào tập - ôn bài thật kỷ cách sử dụng mệnh đề chỉ lý do RÚT KINH NGHIỆM . . . . . . Date: 07/ 09/ 2007 Period 3+4: ADVERB CLAUSES OF REASON I.Kiến thức cơ bản: Giúp học sinh