Tailieumoi.vn xin giới thiệu đến các quý thầy cô, các em học sinh đang trong quá trình ôn tập tài liệu "Lý thuyết, bài tập Unit 7 tiếng anh lớp 8" , tài liệu bao gồm 16, đầy đủ lý thuyết, phương pháp giải chi tiết và bài tập có đáp án (có lời giải), giúp các em học sinh có thêm tài liệu tham khảo trong quá trình ôn tập, củng cố kiến thức và chuẩn bị cho bài thi môn tiếng anh học kì I sắp tới. Chúc các em học sinh ôn tập thật hiệu quả và đạt được kết quả như mong đợi.

Mời các quý thầy cô và các em học sinh cùng tham khảo và tải về chi tiết tài liệu dưới đây:

Unit 7. Pullution

1. VOCABULARY

1. GRAMMAR
2. ĐỊNH NGHĨA CÂU ĐIỀU KIỆN.

1. ÔN TẬP CÂU ĐIỀU KIỆN LOẠI 1 (CONDITIONAL SENENCES TYPE 1)

BÀI TẬP VẬN DUNG CƠ BẢN

Bài 1. Khoanh tròn phương án đúng để hoàn thành các câu sau.

1. If the weather is fine, we (goes/ will go) camping tomorrow.
2. My parents will give me a gift if I (will pass/ pass) the final exam.
3. If you are polite to others, they (will be/ are nice to you).
4. Unless James (studies/ will study) hard, he will fail the exam.
5. My parents won’t allow me to go out if I (don’t finish/ won’t finish) my homework.
6. If the cable TV (doesn’t/ won’t) work, we will rent a DVD.
7. If you don’t want to stay at home, you (go/ can go) with me to the supermarket.
8. If you (will be/ are) a good listener, you will gain many friends.
9. James won’t attend the meeting if he (won’t/doesn’t) want to.
10. You can’t have this job unless you (have/will have) long working experience.
11. What (you will do/ will you do) if it snows tomorrow?
12. You (will be/ are) able to understand it you practice every day.
13. We will eat out today if there (will be/ is) nothing left in the fridge.
14. If it (will be/ is) too cold outside, we will stay home.
15. If she (isn’t/ won’t) careful, she will make many mistakes.

Bài 2. Hoàn thành các câu sau sử dụng dạng đúng của động từ trong ngoặc.

1. The manager (be) ________________ very angry if I am late for work.
2. You will have to work very hard if you (take)______ this course.
3. I (go) ________ to see the doctor if I don’t feel well tomorrow.
4. They can’t hear you unless you (speak) ______ louder.
5. If Peter (forget) _____________ to write his essay, the teacher (give) _____________ him a low mark.
6. If they (win) ___________ this match, they will ne the champions.
7. We (have) _________ plenty of time if we (arrive) ______ there early.
8. The zookeeper (punish) ____________ you if you (feed) ___________ the animal.
9. What ________ (Jane/ say) if Jim (tell0 _______ her the truth.
10. The boys (shiver) _____________ with cold if they (swim) ________ in this lake.
11. The door (not lock) ____________- unless you (press) ____ the green button.
12. Jim won’t be late if he (take) _______________ the bus at 6 o’clock .
13. Mary isn’t home, but if you (want) _____ to leave her a message, I (give) ________ it to her.
14. If jack (clean) ________ the floor, I (do) __________ the washing.
15. the children (be) _____ happy if you (give) _______ them some sweets.

Bài 3.Nối cột A với cột B để tạo thành câu hoàn chỉnh.

1. ____ 2. __________                     3. _______                4. ____________
2. ____ 6. __________ 7. _______                8. ____________

Bài 4. Dựa vào từ cho sẵn, viết câu hoàn chỉnh.

1. If/people/ not/ stop/ dumping/ waste/ into/ rivers/,/pollution/ increase/.

_____________________________________________________________________________

2. If/ polar/ ice caps/ melt/ ,/huge landmasses/ be/ under/ water.

_____________________________________________________________________________

3. If the air/ in/ city/ be/polluted/ ,it/can/ cause/ people’s/ respiratory/ problems.

_____________________________________________________________________________

4. If/smog/ be/ frequently/ formed/ in/ city/,/it/ cause/ difficulty/ in/ breathing/ headache/ even/ lung cancer.

_____________________________________________________________________________

5. If/ carbon monoxide/ concentrate/ in/ great/ amounts/, /it/ be/ harmful/.

_____________________________________________________________________________

6. The climate/ change/ if/ more trees/ be/ cut/ down/ for/ hardwood/.

_____________________________________________________________________________

7. If/ we/ not/ control/ pollution/ soon/,/it/ be/ too/ late/.

_____________________________________________________________________________

8. If/we/ not/ protect/ frontier/,/we/ suffer/ many/ from/ natural/ disasters.

_____________________________________________________________________________

Bài 5. Viết lại câu với “” if/unless” sao cho nghĩa của câu không thay đổi.

1. I can’t finish this task you don’t give me a hand.

-> _____________________________________________________________________________

2. You will run out of money if you don’t stop wasting it.

-> _____________________________________________________________________________

3. Don’t call me unless it is an emergency.

-> _____________________________________________________________________________

4. James will not pass the test unless he studies harder.

-> _____________________________________________________________________________

5. If Jane finishes her work before 6 pm, she will dine out with her friends.

-> _____________________________________________________________________________

6. My brother won’t go travelling this summer if he doesn’t find a companion.

-> _____________________________________________________________________________

7. It is not easy to do these exercises unless you listen attentively to the teacher.

-> _____________________________________________________________________________

8. If Jim doesn’t submit his essay before Tuesday, he will be punished by the teacher.

-> _____________________________________________________________________________

III. CÂU ĐIỀU KIỆN LOẠI 2 (CONDITIONAL SENTENCES TYPE 2)

BÀI TẬP VẬN DỤNG CƠ BẢN

Bài 6. Khoanh tròn vảo phương án đúng.

1. I (would buy/ bought) a new house if I had enough money.
2. If he (would try/ tried) his best, he might be successful.
3. If I (lived/ would live) in Japan, I could speak Japanese well.
4. If someone gave you a dress, which color (would you want/ you would want) it to be?
5. I would repaired the roof myself if I (would have/ had) a longer ladder.
6. You would be more comfortable now if you (didn’t/ wouldn’t) wear high heels.
7. I (wouldn’t/didn’t) buy things on the Internet if I were you.
8. If you (met/ would meet) your favorite author Mark Twain, what wouldn’t you ask him?
9. His parents would be very proud if he (wouldn’t be/ weren’t) so naughty.
10. If Jane had more money, she (would treat/ treated) herself to a decent meal.
11. If you were a billionaire, what (would you do/ did you do)/
12. If Kate owned a computer, she (would spend/ spent) most of her free time on it.
13. If I (would know/ knew) his address, I would give it to you.
14. She would look much better if her hair (didn’t look/ wouldn’t look) so unkempt.
15. If I were in your situation, I (would/ will) let the nature take its course.

Bài 7. Hoàn thành các câu sau, sử dụng dạng đúng của động từ trong ngoặc.

1. More tourists would come to our country if we (provide) ______________ better services.
2. If I studies abroad, _____________ (we/keep) in touch with each other?
3. If someone (give) ______________ you a camera, what would you do with it?
4. If I (win) _________________ a big prize in a lottery, I (donate) _______________ apart of it and (spend) _______________ the rest for myself.
5. What ___________ (you/do) if you found a wallet in the street?
6. I could watch foreign TV program without subtitles if I (know) _________ English.
7. He might be obese if he (not stop) __________________ taking in fat and sugar.
8. If he knew that it was dangerous, he (not do) _______________ it.
9. If you (see) ________________ someone drowning, ________________ (you/save) him?
10. She (be) __________________ happier if her parents (not get) ________________ divorced.
11. If you (sleep) _____________ under a mosquito net you (not be) _______________ bitten so often.
12. I (get) _________________ a job easily if I (have) ______________________ a degree.
13. If whe (have) _________ another hair style, she (look) ___________ younger.
14. if the weather (not be) _______________________ severe, out crops (grow) _______________ faster.
15. I (keep) _____________ a horse if I could afford it.

Bài 8. Viết câu điều kiện loại 2 cho các trường hợp sau.

0/ They don’t have enough money. They cannot buy a new car.

->If they had enough money, they could buy a new car.

1. There isn’t a library in my neighborhood. I cannot borrow books.

__________________________________________________________________________________

2. My health is not good. I don’t play extreme sports.

__________________________________________________________________________________

3. We cannot go for a picnic because it is pouring with rain.

__________________________________________________________________________________

4. I don’t have much free time. I cannot come to your party.

__________________________________________________________________________________

5. Jim doesn’t have any siblings. He feels lonely sometimes.

__________________________________________________________________________________

6. My father is very busy at work. He rarely has time for me.

__________________________________________________________________________________

7. This camera is expensive. I can’t buy it.

__________________________________________________________________________________

8. You don’t try your best. Your result will not be good.

__________________________________________________________________________________

BÀI TẬP TỔNG HỢP NÂNG CAO.

Bài 9. Hoàn thành các câu sau, cho dạng đúng của động từ trong ngoặc.

1. We (be) ____________ happy if air pollution were the only problem.
2. They would be disappointed if you (not go) _____________ to their party.
3. If we (use) _______ this kind of light bulb, we can save energy.
4. Peter should go to sleep early if he (not want) ____________ to be tired the next morning.
5. If you (take) _______________ more exercises, you would be more resistant to diseases.
6. You may have car accident unless you (drive) ________________ more carefully.
7. If I travel to London, I (visit) ____________ its museum.
8. If they offer me the job, I think I (accept) _________________ it.
9. Many people (be) ____________ out of work if the local factory closed down.
10. What (happen) _________________ if that red button was pressed?
11. I’d be absolutely astonished if Mary and James (get) _____________ married.
12. They won’t let you in unless you (show) _____________them your identity card.
13. My best friend gave me this book. She (be) ________________ very upset if I lost it.
14. Would you mind if I (turn) ________________ up the radio.
15. I’m sure she (forgive) ______________ you if you sincerely apologize to her.

Bài 10. Đánh dấu ütrước câu đúng, đánh dấu x trước câu sai và viết lại cho đúng.

______ 1. Pollution can be reduced if we joined hands to prevent it.

_________________________________________________________________

______ 2. If farmers would make use of pesticide more wisely, the soil would not be poisoned.

_________________________________________________________________

______ 3. I won’t believe it unless you showed me the evidence.

_________________________________________________________________

_____ 4. Unless you don’t tell me the truth, I won’t help you.

_________________________________________________________________

_____ 5. If James is more outgoing, he would have more friends.

_________________________________________________________________

_____ 6. I think the show would be successful if he were one of the organizers.

_________________________________________________________________

______ 7. If you paid more attention to what I said, you didn’t make so many mistakes.

_________________________________________________________________

______ 8. If children are taught about environmental issues, they might change their attitudes towards pollution.

_________________________________________________________________

______ 9. You would be punished if you park your car here.

_________________________________________________________________

_____ 10. If you could win the competition, we will have a celebration.

_________________________________________________________________

Bài 11. Hoàn thành các câu sau, chọn và cho dạng đúng của các độn từ cho sẵn.

1. If we use less vehicles, we _________ the amount of carbon dioxide into the air.
2. If you __________ the president, what you do to prevent air pollution.
3. If there were no fresh water left, what ____?
4. If people (not) ________________ rubbish in the street, it would look better.
5. if there wasn’t so much light in the cities at night, we __________ the starts more clearly.
6. If the water is contaminated, people ________ from many diseases.
7. If chemicals from factories are dumped into rivers and lakes, they ______ water pollution.
8. If people want to protect their planet, they should ________ their habit of using plastic bag for convenience.
9. If we recycle paper, we ________ 1000 trees a day.
10. If people were more aware of the negative consequences of pollution, they might ______ actions to prevent it.

Bài 12. Khoanh tròn phương án đúng.

Consequences of water pollution

Water pollution is a matter of concern nowadays because of its negative effects on the environment and human. The first problem is that water pollution kills (1) ________ organism. Dead fish, crabs, birds and sea gulls, dolphins, and many other animals have been killed by (2) ____________ in their habitat. Moreover, pollution (3) _______ the natural food chain as well. Pollutants such as lead and cadmium are eaten by tiny animals. Later, these animals are consumed by fish and shellfish, and the food chain continues to be disrupted at all high levels. Eventually, humans are (4) ___________ by this process as well. People can get (5) ______ such as hepatitis by eating seafood that has been (6) ______________. In many poor nations, there is always outbreak of cholera and diseases as a (7) ______ of poor drinking water treatment from contaminated water. (8) ________ people don’t prevent pollution, not only the environment but also their health will be put at risk.

1. A. aquatic B. atmosphere C. underground                    D. soil
2. A. pollutes B. Pollution C. polluted                            D. pollutants
3. A. changes B. disrupts C. pollutes                             D. clears
4. A. affect B. affected C. affecting                           D. effect
5. A. illness B. sickness C. diseases                            D. healthiness
6. A. cleaned B. poisoned C. processes                          D. prepared
7. A. outcome B. effect C. way                                    D. result
8. A. If B. Unless C. When                                 D. In case     

Bài 13. Đọc đoạn văn sau và trả lời câu hỏi.

Light pollution

Most of us are familiar with air, water, and land pollution, but did you know that light can also be a pollutant? Not many people know about this kind of pollution. Light pollution is the inappropriate or excessive use of artificial light and it can have serious environmental consequences for humans, wildlife, and our climate. Light pollution is a side effect of industrial civilization. Its sources include building exterior and interior lighting, advertising, commercial properties, offices, factories, streetlights, and illuminates sporting venues.

The fact is that much outdoor lighting used at night is inefficient, overly bright and, in many cases, completely unnecessary. This light, and the electricity used to create it, is being wasted by spilling into the sky, rather than focusing on the actual objects and areas that people want illuminated. For three billion years, life on Earth in a rhythm of light and dark that was created solely by the illumination of the Sun, Moon, and Stars. Now, artificial lights overpower the darkness and our cities glow at night. It disrupts the natural day-night pattern and shifts the delicate balance of our environment. Light pollution has negative impacts. It increases energy consumption, disrupts the ecosystem and wildlife and harms human health. Fortunately, concern about light pollution is rising dramatically. A growing number of sciences, homeowners, environmental groups and civic leaders are taking actions to restore the natural night.

1. What source of light does not contribute to light pollution?
2. moonlight B. streetlight
3. offices D. advertising
4. What is NOT true about light pollution according to the passage?
5. People are so familiar with it.
6. Is has many bad effects on humans and the environment.
7. It is the inappropriate or excessive use of natural light.
8. It is a side effect of industrial civilization.
9. What disrupts the natural day-night pattern as mentioned in the passage?
10. artificial light B. darkness
11. our city D. night
12. Which is NOT mentioned as the negative impact of light pollution?
13. increasing the use of energy
14. disrupting the ecosystem.
15. badly affect human health
16. balancing the ecosystem