Bài giảng Tiếng anh Lớp 8 - Unit 7, Lesson 2: A Closer Look 1

English 8UNIT 7 . POLLUTIONPERIOD 57: A CLOSER LOOK 2Welcome to our classGRAMMARIf we (cycle) .. more, we (help) .. the Earth.2. Factories (not dump) ......waste into rivers if the government (fine) ... ..them heavily.3. If people (travel) .. to work by bus, there (be) . fewer car fumes.4. We (save) . . thousands of trees if we (not waste) paper.5. If we (use) water carefully, more people (have) . fresh water.I. Conditional sentences type 1: review 1. Put the verbs in brackets into the correct form. recyclewill helpwill not/won’t dumpfinestravelwill bewill savedon’t wasteusewill haveIf- clause( mệnh đề if , Main clause (mệnh đề chính)If + S +V (simple present), S+ will/won’t + V (bare infinitive2. Combine each pair of sentences to make a conditional sentences type 1.1. Students are more aware of protecting the environment. Teachers teach environmental issues at school. 2. Light pollution happens. Animals change their behaviour patterns. 3. The levels of radioactive pollution decrease. We switch from nuclear power to renewable energy sources....................................................................................................................................................................................................................................................................................................................................................... Students will be more aware of protecting the environment if teachers teach environmental issues at school. If / When light pollution happens, animals will change their behavior patterns.4. The water temperature increases. Some aquatic creatures are unable to reproduce5. People get more diseases. The water is contaminated.The levels of radioactive pollution will decrease , if we switch from nuclear power to renewable energy sources. If the water temperature will increase, some aquatic creatures will be unable to reproduce. People will get more diseases if the water is contaminated.B. CONDITIONAL SENTENCES TYPE 2-The conditional sentence type 2 describes a thing which is not true or is unlikely to happen in the present or future.Example: If it wasn’t noisy here, I could hear you clearly. (But it’s very noisy in here)- The conditional sentence type 2 can be used to give advice.Example: I were you, I would see the doctor immediately.Note: We can use both was and were with I / He / She / It in the If clause.-> If + S + V( past simple), S+ would/ could/ might+ infinitive. If clause main clause3. Match an If clause in A with a suitable main clause in B.A B1. If I were you,a. What would happen?2. If Lan wasn’t ill, b. I’d look for a new place to live.3. If there were fewer cars on the roads,c. She would join our tree planting activity.4. If people really cared about the environment,d. There would be less pollution.5. If there was no fresh water in the world, e. They wouldn’t dump waste into the lake.4. Put the verbs in brackets into the correct form.If you (be) the president, what you (do) to help the environment?2. They get sick so often. If they (exercise) . more, they (be) .. healthier.3. If I (have) one million US dollars, I (build) .. more parks in our city.4. Ngoc’s mother is unhappy. If Ngoc (tidy) .. her room every day, her mother (not be) so upset. 5. There isn’t a garden at our house. If there (be) , we (grow) vegetables.werewould you doexercised would behadwould buildtidiedwouldn’t bewas / werewould grow5. Write a conditional sentence type 2 for each situation, as in the example.People throw rubbish in the street. The street doesn’t look attractive.->2. There are so many billboards in our city. People can not enjoy the view. ->3. There is so much light in the city at night. We can not see the stars clearly.->4. We turn on the heater all the time. We have to pay three million dong for electricity a month.->5. The karaoke bar makes so much noise almost every night. The residents complain to its owner->6. She has a headache after work every day. She works in a noisy office.-> If people didn’t rubbish in the street, it would look attractiveIf there wasn’t so many billboards in our city, people could enjoy the view.If there wasn’t so much light in the city at night, we could see the stars clearly.If we didn’t turn on the heater all the time, we wouldn’t have to pay threemillion dong for electricity a month. If the karaoke bar doesn’t make so much noise almost every night, the residents wouldn’t complain to its owner.She wouldn’t have a headache after work every day if she didn’t work in a noisy office.1. If I have the money,2. If you don’t drive,3. If you want to pass the exam,4. If the weather is warm,5. If I were you,6. If I became rich,7. If my dog could talk,I will buy a big house.I will be late for work.You must study harder.We may/might go to the park.I would buy that bicycle.I would spend all my time travellinghe would/could tell me what he wantsHomework:Learn by heart the grammarDo the exercises B5,6- 5 (Workbook)B3, 4- 4,5 (Exercise notebook)Prepare: Unit 7 (Communication+ Skills 1: Reading) new words, grammar)