Bài tập nâng cao Tiếng Anh Lớp 8 Global Success - Chương trình học kì 2 (Có đáp án)

 protect (n) /prəˈtekt/ bảo vệ
E.g. We should protect the environment. Chúng ta nên bảo vệ mơi trường.
release (n) /rɪˈliːs/ thải ra, làm thốt ra
E.g. Coal power stations release sulfur dioxide into the air. Các nhà máy điện than giải phĩng lưu 
huỳnh đi-ơ-xít vào khơng khí. 
resident (n) /ˈrezɪdənt/ người dân, dân cư
E.g. She’s a resident here. Cơ ấy là một cư dân ở đây.
single-use (n) /ˌsɪŋɡl ˈjuːs/ để sử dụng một lần
E.g. Sales of single-use cameras fell by 2% last year. Doanh số bán máy ảnh dùng một lần đã giảm 2% 
trong năm ngối.
species (n) /ˈspiːʃiːz/ giống, lồi động thực vật
E.g. Many species disappeared during the Ice Age. Nhiều lồi đã biến mất trong Kỷ băng hà.
substance (n) /ˈsʌbstəns/ chất
E.g. Some frogs produce toxic substances in their skin. Một số lồi ếch sản sinh ra các chất độc hại 
trong da của chúng
toxic (n) /ˈtɒksɪk/ độc hại
E.g. Many pesticides are highly toxic. Nhiều loại thuốc trừ sâu cĩ độc tính cao.
B. WORD FORMATION
 Word Related words Transcription Meaning
endangered (adj) /ɪnˈdeɪndʒəd/ trong tình trạng bị đe doạ
 endanger(v) /ɪnˈdeɪndʒər/ gây nguy hiểm
 endangerment (n) /ɪnˈdeɪndʒərmənt/ tình trạng bị đe doạ
 endangerer (n) /ɪnˈdeɪndʒərər/ người hoặc vật gây ra mối đe doạ
 endangering (adj) /ɪnˈdeɪndʒərɪŋ/ tình trạng bị de dọa
extinction (n) /ɪkˈstɪŋkʃn/ sự tuyệt chủng, tuyệt diệt
 extinct (adj) /ɪkˈstɪŋkt/ tuyệt chủng
habitat (n) /ˈhỉbɪtỉt/ mơi trường sống
 habitable (adj) /ˈhỉbɪtəbl/ cĩ thể sống được
 habitation (n) /ˌhỉbɪˈteɪʃn/ sự cư trú, nơi cư trú Mệnh đề trạng ngữ chỉ thời gian là những mệnh đề bắt đầu bằng các liên từ chỉ thời gian như: when 
(khi, vào lúc), while, as (trong khi), until, till (cho đến khi), as soon as, once (ngay khi), before, by the 
time (trước khi), after (sau khi), as long as, so long as (chừng nào mà), since (từ khi)...
E.g. I hope to pay him a visit before I go away.
 (Tơi hy vọng đến thăm được anh ấy trước khi tơi đi.)
 When we were in New York, we saw several plays.
 (Khi chúng tơi ở New York, chúng tơi đã xem một vài vở kịch.)
 As soon as you are ready, we shall go.
 (Ngay khi cậu sẵn sàng, chúng ta sẽ đi.)
 We stayed there until it stopped raining.
 (Chúng tơi đã ở đĩ cho đến khi trời ngừng mưa.)
- Mệnh đề trạng ngữ chỉ thời gian cĩ thể đứng đầu hoặc cuối câu. Nếu mệnh đề trạng ngữ chỉ thời 
gian đứng ở đầu câu sẽ ngăn cách với mệnh đề chính bằng dấu phẩy.
2.2. Cách sử dụng
a. Diễn đạt 1 hành động đang xảy ra thì hành động khác xen vào
 Main clause Conjunction Adverb clause of time
S + V-ed while S+ was/ were + V-ing 
(quá khứ đơn) as (quá khứ tiếp diễn)
S + was/ were + V-ing when S + V-ed 
(quá khứ tiếp diễn) (quá khứ đơn)
E.g. We were having dinner when she came.
 (Khi cơ ấy tới, chúng tơi đang ăn tối.)
 As I was walking home, it began to rain.
 (Khi chúng tơi đang đi bộ về nhà thì trời bắt đầu mưa.)
b. Diễn tả hai hành động diễn ra song song
 Main clause Conjunction Adverb clause of time
S+ is/am/are +V-ing while S+ is/am/are +V-ing 
S + was/ were +V-ing S + was/ were +V-ing 
(chia ở thì tiếp diễn) (chia ở thì tiếp diễn)
E.g. I was cooking dinner while my husband was reading a book.
 (Tơi đang nấu bữa tối trong khi chồng tơi đang đọc sách.) (Khi John đến, chúng tơi sẽ gửi cho anh ta bức thư của cậu.)
D. PRONUNCIATION
Clusters: /bl/ and /kl/
1. /bl/
/bl/ = /b/ + /l/
/b/: mím nhẹ hai mơi lại và nâng phần ngạc mềm để chặn luồng hơi trong 
khoang miệng, rồi mở miệng bật hơi từ phía trong ra. Khi phát âm, dây thanh 
sẽ rung lên.
/l/: để đầu lưỡi chạm vào lợi của hàm răng trên. Khi phát âm, luồng hơi sẽ đi 
qua khoảng trống giữa lưỡi và khoang miệng ra ngồi.
E.g.
blue blink black bleed
blossom blur blend blanch
2. /kl/
/kl/ = /k/ + /l/
/k/: mở miệng, cuống lưỡi co lại, chạm vào phần ngạc mềm hay là phần trong 
cùng của vịm miệng để chặn luồng khí trong miệng. Sau đĩ bật mạnh luồng 
khí ra khỏi miệng mà khơng làm rung dây thanh trong cổ họng.
/l/: để đầu lưỡi chạm vào lợi của hàm răng trên. Khi phát âm, luồng hơi sẽ đi 
qua khoảng trống giữa lưỡi và khoang miệng ra ngồi.
E.g.
clock bicycle eclipse
circle clause classic
3. Sự khác nhau giữa /bl/ và /kl/ 3. The blizzard covered the entire town with snow.
4. The audience started to clap when the musician finished playing.
5. She covered herself with a warm blanket in a cold winter night.
6. The cut on his hand was deep and started to bleed.
7. The water in the lake is so clear that you can see the fish swimming.
8. Don’t blame me for your mistakes.
9. The tropical climate in this region is hot and humid.
10. Sarah is in the 5th grade class at her school.
Exercise 3. Complete the sentences with the words in the box.
 stations endangered carbon extinction environment
 combine ecosystem fisherman absorb participate
1. Pandas are on the margin of ________________.
2. The ________________found a rare dugong in the water.
3. I hope everyone will ________________in this discussion.
4. We should protect the ________________.
5. Coal power ________________release sulfur dioxide into the surrounding air.
6. Hydrogen and oxygen ________________to form water.
7. Trees ________________carbon dioxide and produce oxygen.
8. We need to reduce our ________________footprint. 
9. This bay has a very complex ________________. 
10. Mountain gorillas are an ________________species.
Exercise 4. Put each type of pollution with its description.
 noise pollution thermal pollution
 radioactive pollution light pollution
 water pollution soil pollution
 visual pollution air pollution
 Description Type of pollution
1. Too much use of electric lights
2. Caused by the smoke and harmful gases from vehicles and factories. do to reduce the negative effects (3) ________________ our actions and how we can make the planet 
safe for our children’s children to live in. One consequence (4) ________________ this debate has 
been to improve the level of “green” education in schools and this should result (5) 
________________ greater awareness of this difficult issue in the long term. However, in the short 
term there still remains much to be done. The reason (6) ____________ this is that we need to 
address causes (7) _____________ the immediate problem.
Exercise 7. Complete the sentence with the words in the box.
 contaminated untreated dead pollutant radioactive
 effects dumped aquatic sewage poison
1. ________________ or wastewater should be treated before it is discharged into the river or ocean.
2. More and more waste and ________________ are poured into the water, the soil and the air.
3. The ________________ material is stored in a special radiation-proof container.
4. Oil spills can cause the death of ________________ animals such as fish.
5. ________________ sewage can spread disease and contaminate drinking water sources.
6. Cholera is transmitted through ________________ water.
7. The health ________________ of air pollution include heart disease, lung cancer, and asthma.8. 
Carbon dioxide is a dangerous air.
9. Over 150,000 tonnes of waste are ________________ annually along the coastline.
10. Up to 100.000 fish were found ________________ along the river last week.
Exercise 8. Choose the best option to complete the sentence.
1. She ________________ lunch by the time we arrived. 
A. finished B. has finished C. had finished D. finishing
2. Bob will come soon. When Bob ________________, we will see him. 
A. come B. will come C. will be coming D. comes
3. I will get home at 5:30. After I get home, I ________________dinner. 
A. will have B. will be having C. had D. have
4. As soon as the taxi ________________, we will be able to leave for the airport. 
A. arrives B. arrive C. will arrive D. arrived
5. I will go to bed after I ________________ my work. 
A. finish B. finished C. will finish D. Finishes
6. I ________________ here when you arrive tomorrow. 1. I will call you before I ________________ over. 
A. come B. will come C. will be coming D. came
2. After she graduates, she ________________ a job. 
A. got B. will get C. had got D. get 
3. When I ________________ him tomorrow, I will ask him. 
A. saw B. have seen C. will see D. see
4. As soon as it ________________ raining, we will leave. 
A. stops B. stop C. had stopped D. stopped
5. By the time he comes, we will have ________________ already.
A. leave B. leaving C. left D. leaves
6. Whenever I ________________ her, I say hello. 
A. see B. will see C. will have seen D. saw
7. The next time I go to New York, I am going ________________ a ballet. 
A. seeing B. see C. saw D. to see 
8. I will never speak to him again so long as I ________________. 
A. lives B. will live C. am living D. live
9. By the time Bill ________________to bed tomorrow, he will have had a full day and will be ready 
for sleep. 
A. had gone B. will go C. goes D. went
10. As soon as I finish my report, I will call you and we ________________ out for dinner. 
A. went B. will go C. will have gone D. go
11. By the time I return to my country, I ________________ away from home for more than three 
years. 
A. would be B. will have been C. will be D. am
12. After he ________________ breakfast tomorrow, he will get ready to go to work. 
A. will have had B. has C. will be having D. have
13. As soon as he finishes dinner, he ________________ the children for a walk to a nearby 
playground. 
A. will take B. takes C. will be taking D. took
14. When Bill gets home, his children ________________ in the yard. 
A. played B. will play C. will be playing D. play producing a large amount of dust and poisonous air. Especially in developing countries, people don’t 
pay much attention to the air treatment process which makes the air pollution even worse. Secondly, 
because of the increasing urbanization, it can be easily seen that there is always a lot of traffic in rush 
hour and dust on the road these days. The smoke from vehicles and manufacturing exhaust increases 
the amount of carbon dioxide in the air which makes US feel really hard to breathe. The 
consequences are very bad. Smog and dust can do serious harm to our health, especially our lungs. 
We have thousands of asthma and adult respiratory distress cases each year which raise concern 
about the air quality. Moreover, acid rain is becoming more and more popular which damages crops 
and fields. Many people believe that air pollution is also causing global warming and it is difficult to 
improve the air without the efforts of all countries around the world.
1. According to the passage, where do a large amount of dust and poisonous air come from?
___________________________________________________________________________________
2. Do developing countries take the air treatment process into careful consideration?
___________________________________________________________________________________
3. Why is it difficult for us to breathe when travelling on the roads or streets?
___________________________________________________________________________________
4. Which particular part of our body is seriously affected by smog and dust?
___________________________________________________________________________________
5. What is the harmful effect of acid rain?
___________________________________________________________________________________
6. According to the passage, if all countries in the world ignore the air pollution condition, will it be 
easy to make the air fresher?
___________________________________________________________________________________
Exercise 13. Read the passage, and choose the correct answer A, B, C or D for each question.
 Saving the Environment: One Home at a Time
Pollution can be seen not only throughout the world, but also in our own homes. It comes from 
household chemicals, the amount of water people use and the waste people produce and throw 
away. What can be done to stop this pollution? Surprisingly, a person can help save the environment 
by doing simple things. A. I walking home from B. walking home from
C. walked home from D. walking homework
2. Before _____________, I brushed my teeth. 
A. left my house B. I leaving my house 
C. leaving my house D. my house leaving 
3. I feel asleep _____________ TV. 
A. while I watch B. while watching 
C. while watched D. during I was watching
4. While _____________ about adverb clauses, a mild earthquake shook the classroom. 
A. the teacher lecturing B. the teacher was lecturing 
C. lecturing D. lectured 
5. _____________, a dog chased us down the street 
A. While running B. While we were running 
C. We were running while D. While running we were
6. Since _____________ to New York, Linda has made many friends. 
A. coming B. come C. she coming D. she comes to
7. Peter went back to school _____________ the phone. 
A. after john calling him on B. John had called him on 
C. after John had called him on D. after John had called him
8. _____________ yesterday, we saw many deer. 
A. While we hiking through the woods B. Hiking through the woods 
C. During hiking through the woods D. Hiking through the woods we
9. _____________ the necessary qualifications, she was not hired for a job. 
A. Lacked B. When lacking C. Lacking D. Because lacking
10. Unable to run the entire 42 kilometers, she decided to drop out of the race, _____________ her a 
heat stroke. 
A. the fatigue from the intense heat almost gave
B. the fatigue from the intense heat having almost given 
C. which the fatigue from the intense heat having almost given 
D. the fatigue from the intense heat had almost given
11. _____________ the age of 21, he was able to gamble in Las Vegas.