IV. Find out one error/ mistake from A, B, C or D in each sentence below. (1.0p) 1. Water pollution(A) is the contamination of bodies(B) of water(C) such(D) lakes, rivers, oceans, and groundwater. 2. Polluted(A) water also cause(B) the death(C) of aquatic(D) animals like fish or crabs 3. If we didn't(A) do nothing(B) to stop global warming, we would(C) see big changes(D) in the future. 4. She told(A) her mother that she would go(B) to visit her grandmother in(C) the countryside the previous week(D) 5. After they have finished(A) their home assignment(B) , they went(C) out for(D) a walk.

Read the passage and choose the correct answer A,B or C for each gap.

Water pollution is the contamination of bodies of water such as lakes, rivers, oceans, and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution. Water pollution can have many different causes. Factories dump (21)……………….waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while (22)………………from storm water and the atmosphere result in ‘non- point source’ pollution. Water pollution can have dramatic effects. In many poor nations, there are frequent outbreaks of cholera and other diseases (23)………………..people drinking untreated water. Humans can even die if they drink contaminated water. (24)……………water also causes the death of aquatic animals such as fish, crabs, or birds. Other animals eat these dead animals and may also get sick. In addition, herbicides in water can kill aquatic plants and (25)…………..further damage to the environment. So what should we do to reduce water pollution?

21. A. industry B. industrial C. technology

22. A. pollutants B. pollution C. polluted

23. A. because B. because of C. so

24. A. Polluting B. Pollute C. Polluted

25. A. get B. has C. cause

Choose the letter A, B, C or D to complete the passage below

Water pollution happens __________ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

Question 1:

A. what

B. when

C. why

D. while

Choose the letter A, B, C or D to complete the passage below

Water pollution happens __________ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

Question 2:

A. both

B. only

C. well

D. either

Choose the letter A, B, C or D to complete the passage below

Water pollution happens __________ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

Question 4:

A. of

B. in

C. at

D. for

Choose the letter A, B, C or D to complete the passage below

Water pollution happens __________ (1) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (2) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (3) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (4) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain.

Question 3:

A. cause

B. caused

C. causing

D. causes

II. Circle the best word/phrase (A, B, C, or D) to complete the sentences below. (2.0pts)

1.Water................is the contamination of bodies of water such as lakes, rivers, oceans and groundwater

2. This animal, the………..…..is a symbol of Australia.

3. In summer, children often take part in a local or international…………....

4. I think there are more……………..disasters now than there used to be.

5. Debris…………..collapsed buildings was scattered across the whole area.

6. If we……………..soon, the pollution will get much worse.

7.If the teacher were here now, we’d ask him the difference…………….”science” and “technology”.

8. Dr. Nelson: In the future, students won’t go to school like now.

    Duong:……………………..

9. The man told his friend that he saw a UFO……………………

10. Ha asked me which planet………….the largest planet in the Solar System.

Choose the letter A, B, C or D to complete the passage below

Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes.

Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

Question 7:

A. both

B. only

C. well

D. either

Choose the letter A, B, C or D to complete the passage below

Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes.

Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

Question 8: 

A. cause

B. caused

C. causeing

D. causes