Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

Ex1:Complete the second sentence so that it has similar meaning to the first sentence
1>The soil is poisoned because,farmers use too many pesticides and herbicides.
-If.............................famers used too many pesticides and herbicides, the soil would be poisoned ...............................................................................................
2>I can't help you unless you tell me what's wrong.
-If....................................you don't tell me what's wrong , I can't help you ......................................................................................
3>Many people have stomachache due to the contaminated food.
-The food..............................is contaminated so many people have stomacchache ....................................................................
4>Stop swimming in that lake,or you will have skin rashes.
-If...................................you don't stop swimming on that lake, you will have skin rashes........................................................................
5>John lives in the area affected by air pollution,so he has breathing problem.
-Because....................................John lives in the area affested by air pollution, he has breathing problem........................................................................
-If.................................John didn't live in the area affected by air pollution, he wouldn't have breathing problem........................................................................................
6>We use eco-friendly products and we can protect environment.
-It we...........................................use eco-friendly products, we can protect environment.......................................................................
7>I think you should volunteer to clean the beach.
-If I were....................................you, I would volunteer to clean the beach.............................................................
8>The air is polluied,so there are breathing problems(leads).
-> The air pollution leads to breathing problems
9>Their children have birth defects because the parents were exposed to radiotion(so)
-> The parents were exposed to radiotion so their children have birth defects

II.Rewrite the following sentences, using the conditional sentences, type 1 and 2
1. The soil is poinoned because farmers use too many pesticifes and herbicides. (If)
=>If farmers didn't use too many pesticides and herbicides,the soil wouldn't poisoned.
2. Many people have stomachache due to the contaminate food. (If)
=>If the food wasn't contaminated , many people hadn't stomachache.
3. Stop swimming in that lake, or you will have skin rashes. (If)
=>If you stop swimming in that lake , you won't have skin rashes .
4. Lan lives in the area affected by air pollution, so she has breathing problem. (If)
=>If Lan doesn't live in the area affected by air pollution,she won't have breathing problem.
1,If famers didn't use too many pesticifes and herbicides, the soil wouldn't poinoned
2,If the food wasn't contaminate, many people hadn't stomachache
3,If you stop swimming in the lake,you won't have skin rashes
4,If Lan didn't live in the area affected by air pollution, she wouldn't have breathing problem

II. Read the passage and complete the sentences. True (T) or false (F).
Air pollution is a serious problem in many cities. Motor vehicles, factories and other sources create so much air pollution that it may hang in the air like dirty fog. Air pollution threatens the health of the people who live in cities. City wastes cause water pollution when they are poured into the waterways. These wastes kill fish and make some areas unfit for swimming. In addition, many large cities have difficulties in disposing of their garbage. The amount of garbage grows each year, but places to put it are quickly filling up. Citizens, governments, industries, scientists, and business people must work together in different ways to gradually reduce pollution. For example, most cities have introduced recycling programmes.
¨ 1. Motor vehicles and factories are among some sources of air pollution. T
¨ 2. Air pollution doesn’t endanger people’s health in some cities. F
¨ 3. Air pollution is the only problem of the environment mentioned in this passage.F
¨ 4. Garbage disposal is a problem in many large cities.T
¨ 5. Everyone must cooperate to reduce pollution.T
6. We can reduce pollution by recycling programmes only. F

1. The air in John's area is polluted , so he has breathing problem. ( if / because / because of / make / lead )
=>If the air in John's area weren't polluted,he wouldn't have breathing
=>Because The air in John's area is polluted , he has breathing
=>John has breathing because of the polluted air in his area
=>The polluted air in John's area makes him breath
2. The soil is posoned because farmers use too many pesticides and herbicides . ( so )
- If farmer ..didn't use too many pesticides and herbicides,the soil wouldn't be posoned................
=>Farmers use too many pesticides and herbicides,so the soil is posoned
3. Turn off all the lights and you will not pay more money - If you Turn off all the lights,you will not pay more money ..............
Unless you Turn off all the lights,you will pay more money .............. .........................
4. Be careful or you may have an accident -
If .you are careful,you may not have an accident........................
Unless you are careful ,you may have an accident.............................
5. He can't understand what she has said because he doesn't know English . ( If / so / because of )
=>If he knew E,he could understand what she has said
=>he doesn't know E,so He can't understand what she has said
=>Because of not knowing E,he can't understand what she has said
6. Many people have stomachache due to the contaminated food ( because / so / if )
=>Because the food is contaminated,many people have stomachache
7. There is sewage in the lake , so the aquatic animals die . ( because / result / due to / make if )
=>Because there is sewage in the lake,the aquatic animals die
=>Ban lm tg tu nhes
A. If people breathed contaminated air, they had breathing problems.
B. If people breathed contaminated air, they would have breathing problems.
C. If people breath contaminated air, they have breathing problems.
D. If people breath contaminated air, they will have breathing problems.
Đáp án: D
DGiải thích: câu điều kiện loại 1 “If + S V(s/es), S will V”
Dịch: Nếu mọi người hít thở không khí ô nhiễm, họ sẽ có vấn đề về hô hấp.
Question 2: Many/ people/ this area/ have/ cholera/ because/ they/ drink/ untreat/ water.
A. Many people in this area have cholera because they drink untreated water.
B. Many people on this area have cholera because they drink untreated water.
C. Many people on this area have cholera because they drink untreating water.
D. Many people in this area have cholera because they drink untreating water.
Đáp án: A
Giải thích: in + địa điểm: ở nơi nào
Have cholera: bị bệnh tả
Untreated water: nước thải chưa qua xử lý
Dịch: Nhiều người ở khu vực này bị bênh tả vì uống nước chưa qua xử lý.
Question 3: The street/ not/ look/ attractive/ because/ there/ be/ a lot of/ rubbish.
A. The street not look attractive because there’s a lot of rubbish.
B. The street not look attractive because there’re a lot of rubbish.
C. The street doesn’t look attractive because there’s a lot of rubbish.
D. The street don’t look attractive because there’re a lot of rubbish.
Đáp án:C
Giải thích: chủ ngữ số ít đi với động từ số ít
Dịch: Con đường trong chẳng đẹp vì có nhiều rác quá.
Question 4:The music club/ be/ make/ so/ much noise/ that/ the residents/ require/ them/ turn/ the music/ down
A. The music club is making so much noise that the residents require them to turn the music down.
B. The music club is make so much noise that the residents require them to turn the music down.
C. The music club be make so much noise that the residents require them to turn the music down.
D. The music club be making so much noise that the residents require them to turn the music down.
Đáp án: A
Giải thích: cấu trúc “be + so + adj + that + S V”: quá…đến nỗi mà…
Require sb to V:yêu cầu ai làm gì
Dịch: Câu lạc bộ âm nhạc làm ồn quá đến nỗi mà cư dân phải yêu cầu họ nhỏ tiếng lại.
Question 5:Visual/ pollution/ prevent/ us/ see/ far/ away.
A. Visual pollution prevents us from seeing far away.
B. Visual pollution prevents us with seeing far away.
C. Visual pollution prevents us on seeing far away.
D. Visual pollution prevents us of seeing far away.
Đáp án: A
Giải thích: cấu trúc “prevent sb from doing st”: ngăn ai khỏi việc làm gì
Dịch: Ô nhiễm tầm nhìn khiến chúng ta khó khăn trong việc nhìn xa.
Rearrange the sentences to make meaningful sentences
Question 6: What/ pollution/ to/ is/ types/ the/ of/ most/ human/ harmful?
A. What pollution of types is the most harmful to human?
B. What types of pollution is the most harmful to human?
C. What the most types of pollution is harmful to human?
D. What is types of pollution harmful the most to human?
Đáp án: B
Giải thích: cụm từ “type of N”: loại gì
Be harmful to sb: có hại với ai
Câu so sánh nhất với tính từ dài: “Be the most + adj dài”
Dịch: Loại ô nhiễm nào có hại nhất đối với con người?
Question 7: poison/ Sewages/ lakes/ from/ such/ and/ water/ factories/ bodies/ as/ rivers
A. Sewages as rivers from factories poison water bodies such and lakes.
B. Sewages and lakes from factories poison water bodies such as rivers.
C. Sewages from factories poison rivers and lakes such as water bodies.
D. Sewages from factories poison water bodies such as rivers and lakes.
Đáp án: D
Giải thích: poison: gây độc, đầu độc
Dịch: Nước thải từ các nhà máy làm độc hại các vùng nước như hồ, sông,…
Question 8: of/ are/ Plas/ of/ source/ the/ main/ bags/ one/ pollution.
A. Plas bags are the one of main source of pollution.
B. Plas bags are one of source of the main pollution.
C. Plas bags are one of the main source of pollution.
D. Plas of bags are one pollution of the main source.
Đáp án:C
Giải thích: cấu trúc “one of the + Ns”: một trong những…
Dịch:Túi nilon là một trong những nguồn chính gây
Question 9: in/ food/ Soil/ results/ contamination/ unsafe
A. Soil food results in unsafe contamination.
B. Soil contamination results in unsafe food.
C. Soil unsafe results in food contamination.
D. Soil results in contamination unsafe food
Đáp án: B
Giải thích: cụm từ “result in”: gây ra
Dịch: Ô nhiễm đất gây ra thực phẩm không đảm bảo an toàn.
Question 10: If there were more trees in the area, the air would be fresher.
A. If there were more trees in the area, the air would be fresher.
B. If were there more trees in the area, the air would be fresher.
C. If there would be more trees in the area, the air were fresher.
D. If the air were more trees in the area, there would be fresher.
Đáp án: A
Giải thích: cấu trúc there + be + N: có…
Câu điều kiện loại 2
Dịch: Nếu có nhiều cây hơn ở khu này, không khí sẽ trong lành hơn
Rewrite sentences without changing the meaning
Question 11: It’s very wasteful to apply lights in almost everything at night.
A. Apply lights in almost everything at night is very wasteful.
B. To apply lights in almost everything at night is not wasteful.
C. Almost everything is wasteful at night.
D. It’s interesting to apply lights in almost everything at night.
Đáp án:A
Giải thích: cấu trúc “it’s + adj + to V”: thật là như thế nào khi làm gì
Dịch: Thật là lãng phí khi lắp điện ở hầu hết mọi thứ vào buổi tối.
Question 12: The soil is poisoned because farmers use too many pesides and herbicides.
A. Famers use too many pesides and herbicides, but the soil is poisoned.
B. Famers use too many pesides and herbicides, for the soil is poisoned.
C. Famers use too many pesides and herbicides, so the soil is poisoned.
D. Famers use too many pesides and herbicides, or the soil is poisoned.
Đáp án: C
Giải thích: so + mệnh đề: vì vậy
Dịch: Đất đai bị ô nhiễm vì nông dân dùng quá nhiều thuốc trừ sâu và diệt cỏ.
Question 13:If you don’t stop swimming in that lake, you will have a rash.
A. Unless you don’t stop swimming in that lake, you will have a rash.
B. Unless you stop swimming in that lake, you will have a rash.
C. If you don’t keep swimming in that lake, you will have a rash.
D. Unless you keep stop swimming in that lake, you will have a rash.
Đáp án:B
Giải thích: Unless = if…not…: nếu không, trừ phi
Stop Ving: ngừng làm gì <> keep Ving: cứ tiếp tục làm gì
Dịch: Nếu bạn không ngừng bơi ở cái hồ đó, bạn sẽ bị nổi mẩn ngứa đó.
Question 14: The polluted water results in the death of many aqua animals and plants
A. The polluted water causes in the death of many aqua animals and plants.
B. The polluted water leads to the death of many aqua animals and plants.
C. The polluted water causes to the death of many aqua animals and plants.
D. The polluted water leads in the death of many aqua animals and plants.
Đáp án: B
Giải thích: lead to = result in = cause: gây ra cái gì
Dịch: Nước ô nhiễm gây ra cái chết của nhiều loài thuỷ sinh.
Question 15:People use a lot of vehicles. The air is polluted.
A. If people don’t use too many vehicles, the air won’t be polluted.
B. If people won’t use too many vehicles, the air don’t be polluted.
C. If people wouldn’t use too many vehicles, the air didn’t be polluted.
D. If people didn’t use too many vehicles, the air wouldn’t be polluted.
Đáp án: D
Giải thích: Câu điều kiện loại 2: If + S +Ved, S would V
Dịch: Nếu con người không dùng quá nhiều phương tiện giao thông, không khí sẽ không bị ô nhiễm.