15. You will take a flight to ………….Pacific Ocean and your first stop is in …………United States.

A. X/ the B. the/ the C. X/X D. the / X

16. ……….having a cold, she can’t take part in the camping trip.

A. Despite B. Because C. Because of D. Even though

17. Mary is ________ engineer, she works for _______ big company.

A. an/a B. a/a C. an/the D. Ø

18. These pictures were set ________ motion.

A. of B. on C. in D. at

______________ that he became famous.

A. It is not until B. It is not until 2008

C. It was not until that D. It was not until 2008

19. Hoa was _______ because of this film.

A. exciting B. excites C. excited D. excitedly

20. This student is very intelligent. I admire him very much.

A. This student who I admire him very much is very intelligent.

B. This student whom I admire very much is very intelligent.

C. This student , whom I admire very much, is very intelligent.

D. This student, that I admire very much, is very intelligent.

21. I like living in this house _______ it is old.

A. because B. although C. in spite of D. because of

22. Few businesses are flourishing in the present economic climate.

A. growing well B. setting up C. closing down D. taking off

1. Nam couldn’t pass the exam______ he was too lazy.

A. because                       B. because of       C. although            D. in spite of

2. I can’t finish my homework ______ the noise.

A. because of         B. although          C. despite             D. in spite of

3. ______ there is a lot of noise in the city, I prefer living there.

A. Despite         B. In spite of   C. Because of                           D. Although

4. Julie failed the exam ______ of not working hard.

A. though                   B. in spite             C.because of         D.because

5. He went to school ______ his headache.

A.in spite of           B. although                    C. because            D. because of

6. Despite ______, we arrived on time.

A. the heavy traffic                             B. of the heavy traffic

C. there was heavy traffic                   D. of there was heavy traffic

7. ______ it was very cold, she put on her coat.

A. Although           B. Though            C.Because            D. Because of

8. ______ rain or snow, there are always more than fifty thousand fans at the football games.

A. In spite of                   B. Although                   C. Because           D. Because of

9. John lost his job______ his laziness.

A. because of             B. because            C. in spite of        D. though

10. We understood him ______ he spoke very clearly.

A. because of           B. because                      C. though             D. despite

    River pollution occurs when pollutants are not removed from sewage and are discharged into the river. River water is a very important source of freshwater required to sustain life. We need a constant supply of fresh water for drinking, cooking and washing. Animals living near the river, as well as fishes and aquatic plants, also depend on clean river water.

       When heavy rainfall occurs, pollutants accumulated within the boundaries of the catchment area may be washed into river channels. These pollutants include a variety of agrochemicals like fertilizers and insecticides.

       Waste water containing cleaning detergents, oil and other pollutants like industrial waste may be discharged into the river channel through our drainage systems. Industrial waste may contain sulfur, resulting in increasing the acidity of the river water. Sometimes, rubbish such as plastic bags and bottles, are also washed into the river channel.

Answer the questions below:

1. When does river pollution occur?

       __________________________________________________________________________

2.    What is the important role of fresh water to humans and animals?

       __________________________________________________________________________

3.    What happens when heavy rainfall occurs in a polluted area?

       __________________________________________________________________________

4.    How may waste water be discharged into the river?

       __________________________________________________________________________

5.    What is the effect of industrial waste on the environment?

       __________________________________________________________________________

1. She has been worn down by ............ (poor) and illness.

2. This is a .......... (medicine) matter best left to doctors to decide.

3. About 60% of the country's .......... (electrify) is produced from coal.

4. The book is full of lovely pictures but it's .......... (use) as a guide.

5. Tom passed his final examination because he was very ........... (hard)

6. Their investment in this field of production was too .......... (risk).

7. An ........... (agree) with the employers was finally worked out.

8. Mary wants to .......... (wide) her knowledge of the subject.

9. The river burst its banks and .......... (flood) the valley.

10. Sales figures continue to show signs of .. . (improve).

11. Many modern ........... (farm) methods have been introduced.

12. London is always full of foreign ............. (tour) in the summer.

13. She takes great ........... (plense) in her work.

14 Discussion should be part of the ............. (decide) - making progress.

15. The main street in front of my house is closed for .......... (surface).

16. Clean air provides us with a ............. (health) supply of oxygen.

17. The machine in your office must be checked ............ (week).

18. We can find ............. (plenty) supplies of fresh fruit and vegetables here.

19. There are few household goods at a ............ (suburb) shop.

20. He is completely .............(interest) in anything to do with business.

giúp e bài này với

2. We have cut down so many trees that there are now vast areas of waste land all over the world. As a result, farmers in parts of Africa can’t grow enough to eat. In certain countries in Asia there is too little rice. Moreover, we do not take enough care of the countryside. Wild animals are quickly disappearing. For instance, tigers are rare in India now because we have killed too many for them to survive. However, it isn’t simply enough to talk about the problem. We must act now before it is too late to do anything about it. Join us now to save the earth. This is too important to ignore.

1. Since so many trees are cut down,………………………

 A. there is too little rice in Asia                B. tigers are rare

 C.   there are vast parts of wasteland        D. wild animals are quickly disappearing

 2.   Farmers in parts of Africa………………………

 A. kill so many tigers B. talk much about the problem C.     save the earth              D. can’t plant enough to eat

 3.   Tigers in India are rare because………………………….

 A. they don’t eat enough              B. we ignore them C.  many of them are killed                      D. we act

 4.   According to the reading, we must…………………………

 A. survive now                  B. act now to save the earth  C.          cut down trees D. talk about the problem

 5.   Tigers are classified as……………… A. rice B. farmers       C. wild animals                       D. trees

Read the passage below carefully, and then choose the best answer

Conservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.

Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.

Question: Which word in the reading means “living or growing in, happening in, or connected with water”?

A. necessar

B. major

C. fresh

D. aquatic

Read the passage below carefully, and then choose the best answer

Conservation conflicts arise when natural-resource shortages develop in the face of steadily increasing demands from a growing human population. Controversy frequently surrounds how a resource should be used, or allocated, and for whom. For example, a river may supply water for agricultural irrigation, habitat for fish, and water-generated electricity for a factory. Farmers, fishers, and industry leaders vie for unrestricted access to this river, but such freedom could destroy the resource, and conservation methods are necessary to protect the river for future use.

Conflicts worsen when a natural resource crosses political boundaries. For example, the headwaters, or source, of a major river may be located in a different country than the country through which the river flows. There is no guarantee that the river source will be protected to accommodate resource needs downstream. In addition, the way in which one natural resource is managed has a direct effect upon other natural resources. Cutting down a forest near a river, for instance, increases erosion, the wearing away of topsoil, and can lead to flooding. Eroded soil and silt cloud the river and adversely affect many organisms such as fish and important aquatic plants that require clean, clear freshwater for survival.

Question: What may bring water to agricultural irrigation?

A. a river

B. topsoil

C. erosion

D. a forest