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Read the passage carefully. Then decide whether each is True or False
- People pollute the environment by throwing litter or garbage all over the places every day. They also dump empty bottles or cans into the rivers, lakes and seas, making the water unclean. They also cut a lot of trees to get wood pulp for making paper. To protect the environment , everyone should classify and put the garbage in a certain bag for making compost and they should recycle waste paper to avoid cutting a lot of trees. We can protect our environment by doing like that. We also should plant more and more green trees because trees help to hold the soil, prevent us from floods and give us fresh air and shade in summer.
True or False ????
1. One of the factors leading to the water pollution is bottles and cans dumped into the rivers. T
2. We don't need to clarify garbage because It doesn't help protect the environment. F
3. In oder to prodect our environment, we have to plant more trees. T
4. Trees should not be cut down so as to prevent us from floods. T
Questions :
5. We should NOT......... so as to protect environment.
a. Classify and put the garbage in a bag for making compost.
b. Cut lots of trees to get wood pulp instead of recycling waste paper.
c. Plant more green trees.
d. All the correct.
6. What does the word " Classify " in the passage mean ?
a. Arrange things in groups according to their features.
b. Throw things in different directions.
c. Bring things together.
d. Reduce something
Choose the best answer for each of the fllowing sentences
1. ............ if you work harder, you will be sacked.
A. Whether B. If C. However D. Unless
2. I think you should stop smoking.
A. If I am you, I will stop smoking B. If I were you, I will stop smoking
C. If I were you, I would stop smoking D. If I had been you, I would stop smoking
3. If you take the ice out of the fridge, it ...........
A. vaporizes B. melts C. heats D. disappears
4. We should do something to protect water from being polluted ........... we will have nothing to drink in the future.
A. if B. whether C. or D. unless
5. Let's knock on their door to see .......... home.
A. if they're B. unless they're C. whether they were D. if they were
6. Unless we .......... more snow, we can't go skiing.
A. will have B. have C. have had D. had
7. You'll fail the exam ........... you start revising.
A. if B. until C. when D. unless
8. Unless you wash the car, you .............. not drive it at the weekend
A. would B. could C. have to D. may
9. If Peter ............... his car before the drive, he ................ the problem of out of petrol.
A. cheked / will not get B. had checked / would not have got
C. checks / will not have got D. would be checking / will not have got
10. He stepped on the mine, and it exploded.
A. If he doesn't step on the mine, it doesn't explode.
B. If he doesn't step on the mine, it won't explode.
C. If he didn't step on the mine, it wouldn't explode.
D. If he hadn't step on the mine, it wouldn't have exploded.
1. Climate changes will definitely cause sea levels to rise.
bound Sea levels …………will be bound to rise …………due to climate changes.
2. A number of animal species will soon face extinction.
verge A number of animal species ………………are on the verge of…………..……extinction.
3. If they hadn't helped, .the park wouldn't have been built.
help But……………for their help…………….the park wouldn't have been built.
4. The project on the Amazon rainforest will be complete by the end of week.
have The project on the Amazon rainforest ……..…will have been completed…..by the end of the week.
5. If we don't do more to prevent forest fires, there will be serious consequences for wildlife.
done There will be serious consequences for wildlife if…...nothing is done to........prevent forest fires.
Nowadays, more and more people are changing the way they use their televisions.Some years ago we (1)...used... to turn on TV and watch whatever there was.But now we choose the (2)...programs... we watch much more carefully because we have many (3)...other... interesting things to do.One result of this change is that we are also becoming (4)...more... careful about the actual television set itself. As we watch fewer programs, we want to be sure that we will (5)...have... a really good picture, with bright color and clear sound. Because it will be switched off (6)...most... of the time, we also want the television to look good when we are not watching it. So when we (7)...buy... or rent we look at the outside to make sure it is attractive and will look right (8)...with... other furniture.Of course we have to (9)...pay... more for high quality.However it seems that the number of (10)...people... who are content to do is increasing and this should have a good result because in the end all television will have better quality.
III. Complete the sentences with the correct form of the verbs in brackets.
1) If we DON'T RECYCLE ( not recycle) paper now, we'll need to cut down more trees in the future.
2) If the local people HAD (have)
fresh water, they wouldn't have to use polluted water.
3) What WOULD HAPPEN ( happen) if radioactive material was not handled properly?
4) If we recycle more household waste, there WILL BE ( be) less damage to the environment.
5) If we DIDN'T UNDERSTAND ( not understand) environmental ptoblems, we would not be able to do anything about them.
6) If the polar ice-caps melted completely, Sea levels worldwide WOULD RISE ( rise) about 60 metres.
7) The amount of plastic in the ocean WILL INCREASE ( increase) if we DON'T TAKE ( not take) action now.
8) These fish WOULDN'T DIE ( not die) if the factory DIDN'T DUMP ( not dump) its toxic waste into the river.
9) There WON'T BE ( not be) enough oxygen if we DON'T PROTECT ( not protect) the rain forests.
10) If I WERE ( be) the President, I WOULD BAN ( ban) billboards in cities in order to reduce visual pollution.
One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.
Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.
1. According to the writer, one environmental problem in the world today is ________ .
A. acid rain B. industrial pollution.
C. safe water shortage. D. population explosion .
2. Many sources of water are not drinkable because of _______ .
A. acid rain. B. industrial pollution.
C. garbage D. all A, B, C, are correct
3. What is serious problem of Lake Baikal in Russia?
A. It contains a rich variety of animals and plants.
B. It is polluted by massive volumes of industrial wastes discharged into it .
C. It has 1,300 rare species that do not exist anywhere else in the world .
D. The government did not have the power to enforce laws and regulations.
4. How many countries throw industrial waste into the Mediterranean Sea regularly?
A. nearly 16 B. exactly 16.
C. exactly 15 D. less than 15.
5. What is the message to the reader?
A. We should take action to protect our water resources.
B. We should take all water resources into account.
C. We should limit the use of water resources.
D. We should encourage people to use safe water.
Chúc bạn học tốt 
I.Put the verbs into the correct form:
1.If people (be)......were........fully aware of the dangers of air pollution,they (damage).........wouldn't damage...........the atmosphere this way
2.We (not be)...........won't............able to drink that water if it is not refined
3.If you (reduce)............reduce............the number of bulbs in your house,you (pay)..........will pay..........less money for the electricity bill next month
II.Fill in the blank with the correct form of the given word
1.Many people don't know about the..........danger..............of soil pollution (dangerous)
2.The river is seriously..........comtaminated..........by the factory's waste (contaminate)
3.The water color can show us how.......polluted...........the river is (pollute)
1.are
2.have
3.a
4.as
5.been