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Choose the best answer
1. all / must / aware / importance / environment / we.
A. We must be aware of the importance of environment.
B. We all must be aware of the importance of the environment.
C. We must be aware the importance of the environment.
D. We must be aware of importance of the environment.
2. we / now / faced / problem / deforestation.
A. We are now faced with problem of deforestation.
B. We are now faced with the problem of deforestation.
C. We now faced with the problem of deforestation.
D. We now faced with problem of deforestation.
3. erosion / result / when / forests / cut / carelessly / soil.
A. Soil erosion result when forests are cut down carelessly.
B. Soil erosion results when forests cut carelessly.
C. Soil erosion results when forests are cut down carelessly.
D. Soil erosion results when forests are cut carelessly.
4. erosion / occur / soil / other / land / debris / wash / As / rivers.
A. As erosion occurs, soild other land debris wash into our rivers.
B. As erosion occur, soild and other land debris wash into our rivers.
C. As erosion occurs, soild and other land debris wash into our rivers.
D. As erosion occurs, soild and other land debris are washed into our rivers.
5. Our rivers, / streams, / and / seas / being dirtied / activities / land
A. Our rivers, sreams, and seas is being dirtied by activities on land.
B. Our rivers, sreams, and seas are being dirtied by activities on land.
C. Our rivers, sreams, and seas is being dirtied by activities land.
D. Our rivers, sreams, and seas are being dirtied activities on land.
6. air / be / also / the / pollute.
A. The air was also pollute. C. The air is also polluted.
B. The airs are also pollute. D. The air is also pollution.
7. Human / action / can / lead / greenhouse / effect.
A. Human action lead to the greehouse effect.
B. Human action can lead to the greehouse effect.
C. Human action can lead to greehouse effect.
D. Human action can lead to the greehouse effect.
8. I / glad / you / can / come.
A. I am glad that you could come. B. I am glad that you can come.
C. I am glad you can come. D. I am glad that you come.
9. I / tired / because / I / sat up / late / watching / TV.
A. I’m tired because I sat up late watching TV.
B. I’m tired because I sat up late watch TV.
C. I’m tired because I sat up late to watch TV.
D. I was tired because I sat up late watching TV.
10. Remember / turn / light / before / leaving room.
A. Remember to turn the light before leaving the room.
B. Remember to turn off light before leaving the room.
C. Remember turn off the light before leaving the room.
D. Remember to turn off the light before leaving the room.

Wikipedia is an encyclopaedia that is available on the Internet and what people love about it is that it can be edited by absolutely everybody . When and how did it start ? It was founded in 2001 by a guy called Jimmy Wales . It started as a fancy idea , a kind of a hobby and everybody is surprised how popular it has become and how many computer scientists it has attracted . It has got a collection of about 1.8 mln articals , the majority of which are in English ; however , one can find some articles in over 200 languages . If it aws a business , it would earn lots of money .
How is it possible that articlest hat can be changed by anyone are correct ? The Wikipedia is based on wikis – a special software which lets everyone modify a wbpage and it is true that anyone can change the information on the page if they think it is incorrect . But , the Wikipedia has a team of over 13,000 people who are experts in different fields and who correct any accurate information sent by people . Is it error – free ? One may say so . Rcently , for example , the Bristish journal Nature looked at the scientific information in Wikipedia and confirmed it was very reliable and that they did not find many errors . It was very good news for the founder as well as for all the users .
Why is it becoming so popular ? Like the whole idea of the Internet , it is also quick and available to everyone . The greatest thing of all is that it is free . Some people also stress that it’s fun to be able to add what you know to the information on the net . IT specialists believe it has a bright future and most claim it is the most brilliant invention ever .
Questions :
1. Wikipedia ___________ :
A. was created by a team of computer scientists .
B. began as a business idea
C. became popular as soon as it started
D. started as one man ‘s passion .
2. Articles in Wikipedia are ________ :
A. mostly about science
B. mostly in english
C. translate into 200 languages
D. very interesting
3. Wikipedia remains accurate as much as possible because _________ :
A. all people who write for it are experts
B. it has a special type of software programme
C. there are people who monitor it for mistakes
D. not everybody can change the information
4. the text comes from __________________ :
A. a leaflet
B. a speech
C. a magazine
D. a scientific article
5. The best advantages of Wikipedia is that...........
A. you don't have to pay for it.
B. everyone can use it
C. it is created bu ordinary people
D. is quick and reliable.

Read the passage carefully, then choose the correct answers.
A tsunami is a natural disaster more devastating than earthquakes, tornadoes or any other disaster you can think of. Tsunami is a Japanese word that means harbor wave. A tsunami happens when huge waves are formed after something under the ocean occurs to make these large waves form. Erupting volcanoes can also cause tsunamis to occur. The waves start in one area but they move quickly in all different directions once the tsunami begins. Tsunamis begin as an under the water earthquake. The force of the earth moving causes the water to move and produce huge waves. Waves from tsunami cam travel through the water as fast as 500 miles per hour. As they approach the coast, they continue to grow in size before smashing down on the cities and towns along the coastline. These waves can often be as high as 100 feet, causing much destruction.
32. What is a tsunami?
a. A series of huge waves c. A sudden gust of wind b. A storm with strong winds d. A violent shaking of earth's surface
33. Which is the most diastrous, according to the passage?
a. Earthquake b. Tornado c. Tsunami d. hurricane
34. Which can cause a tsunami to occur?
a. Droughts b. Floods c. Hurricanes d. Volcanic eruptions
35. What happens to a tsunami as it approaches the coast?
a. It changes direction.
b. It decreases the height.
c. It grows in size.
d. It moves more quickly
36. What happens when a tsunami hits land?
a. It devastates coastal regions.
b. It causes underwater earthquake.
c. It blows everything out to sea.
d. It sucks up everything in its path.

#Continued_Exercise
#I'll_kill_it
Combine the two sentences by using a suitable relative clause.
15. I bought a new typewriter. It costs me a lot of money.
___ I bought a new typewriter which costs me a lot of money__
16. Tom is one of my closest friends. He is very intelligent.
__Tom who is very intelligent is one of my closest friends ___
17. This is the newspaper. I want you to buy it.
___This is the newspaper which I want you to buy. ___
18. Have you ever spoken to the people? They live next door.
___Have you ever spoken to the people who live next door?___
19. It’s the book. It will interest children of all ages.
__ It’s the book which will interest children of all ages.__
20. The Pikes keep having all-night parties. They live next door.
__The Pikes who live next door keep having all-night parties _
21. Where are the eggs? They were in the fridge.
____Where are the eggs which were in the fridge?____
22. Vietnam exports rice. Vietnam is in south-east Asia.
___ Vietnam which is in south-east Asia exports rice ____
23. I am talking to Russ. His land is in the region.
___I am talking to Russ whose land is in the region.___
24. The man and animals were from China. You saw them on TV.
__The man and animals that you saw on TV were from China ___
Fill in each gap with a suitable word in the box below.
--died – killed – prevented – occured – began – cooking –
oke ->broke – caused--
Almost a hundred thousand people were ___killed____(53) and half a million homes destroyed as a result of an earthquake in Tokyo in 1923. The earthquake ___began___(54) a minute before noon when the inhabitants of Tokyo were __cooking___(55) their midday meals. Thousands of stoves were overturned as soon as the earth began to shake. As a result, small fires ____broke___(56) out everywhere and quickly spread. The fires engines were ___prevented__(57) from going to help because many of the roads had cracked open. It was impossible to use fire fighting equipment as most of the water pipes had burst. Consequently, over ninety percent of the damage was ___caused___(58) by fire rather than by the collapse of the buildings. Most of those who ___died__(59) were not killed in the earthquake itself but in the fires, which followed. If the earthquake had __occured____(60) at night while people were sleeping, far fewer would haved died.
------THE END------
Grade 9 UNIT 9: NATURAL DISASTERS THE SECOND TERM
Give the co
ect form of the words in
ackets.
1. According to the weather forecast, it will be __sunny______________tomo
ow. (sun)
2. A ______tropical__________storm hit the city last night. (tropic)
3. The vocalno is one of the largest ______eruptions__________in the world. (erupt)
4. A _______tidal_________wave can only occur in that case. (tide)
5.The most ____disastrous________earthquake in Japanese history damaged Tokyo and Yokohama. (disaster)
6. _______Scientists_________have warned the local people of the disaster. (science)
Give the co
ect form of the ve
s in
ackets.
7. Tom suggested ___going_____________to a nea
y restaurant. (go)
8. What about _____traveling___________by bus? (travel)
9. But I like ______watching__________them, dear. (watch)
10. If we pollute the water, we _______won't have_________no fresh water to use. (have)
11. We haven’t met each other since we ______left__________ school. (leave)
12. Trang ____has just won____________the first prize in the english speaking contest. (just win)
13. Rice ________is grown________in tropical countries. (grow)
14. This exercise must ___be done_____________carefully. (do)

III. Read the passage below and answer each of questions
Tropical rain forests are found in Amazon region of south America, central America, Africa, and South and Southeast Asia. Rain forests are very important to the world’s climate. The Amazon rain forest alone receives about 30 to 40 % of the total rainfall on the earth and products about the same percentage of the world’s oxygen. Some scientists believe that the decreasing size of rain forests will affect the climate on the earth, making it uncomfortable or even dangerous for life. Saving our rain forests is an international problem. One country, or even a few countries can not solve the problem alone. The nations of the world must work together to find a solution before it is too late
1. Where are the rain forests found?
They are found in Amazon region of south America, central America, Africa, and South and Southeast Asia.
2. How much percent of the would's oxygen do the Amazon rain forest produce?
It produces about 30 to 40 percent of the world's oxygen.
3.How will the decrreasing size ò rain forests afect the climate on the earth?
It will make the climate on the Earth uncomfortable or even dangerous for life.4.Is saving our rain forests only a national problem?
No, it isn't.

III.Choose A, B, C or D that best fits the blank space in the following passage( 1,5 pts)
When you plant a tree, you are (19)....... your environment in many ways. Your tree will provide a home and food for other creatures. Birds may build nests in the branches. The flowers will provide honey for bees and the fruit or nuts may (20 )…….. birds and other small animals. Your tree will (21) ………the soil in place.This will help stop erosion. (22)……… addition, your tree will provide shade in summer. You can watch your tree (23 )…….. and some day you (24)……… your children, or even grandchildren the tree you planted
19. A keeping B. helping C. creating D. taking part
20. A. affect B. do harm to C. feed D. clear up
21. A. keep B. make C. help D. hold
22. A. By B. To C. In D. On
23. A. grow B grow up C. grow down D. grow on
24. A. introduce B. show C. explain D. show up
The destruction of the rainforests is a pressing problem of our times (61) ___but____ not one that is regarded equally seriously by everyone. The more affluent nations regard the issue as (62) ___necessity____ of
preservation; deforestation must stop. When it comes to the poorer countries, the issue is not so cut and dried. (63) ___To____ these people, the rainforests represent a source of economic prosperity, a point that obviously takes precedence over ecological concern. A solution must be found before the damage caused by the deforestation that is destroying the rainforests becomes irrevocable. Deforestation is carried out by (64) ___workers____ involved in the timber industry and also by migrant farmers. The latter occupy an area of land, strip it, farm it (65) __until_____ its natural mineral supply is used up and then move on. The land is left useless and exposed and a process of erosion comes into effect, washing soil into rivers thereby killing fish and blocking the water’s natural course.
The land is not the (66) ___only____victim. Rainforests are a richly populated habitat. In the rainforests of Madagascar there are at (67) __least_____150,000 individual species of plants and animals which are found nowhere (68) __else__ in the world, and more are being discovered all the time . Furthermore, approximately 50% of all endangered animal species live in the world’s rainforests. The destruction of the forests effectively represents a complete removal of all these plants and animals. Deprived (69) ___of____ their natural environments, they will disappear altogether. Again, this process is irreversible. Man, no (70) ___matter___ how powerful he considers himself, does not have the power to re-establish the species he is so wilfully destroying.