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3) Make nouns from the verbs by adding the correct suffix -tion, -sion, or -ation. Make changes in the word form, if necessary. 

ĐÁP ÁN 

4) Use the nouns in 3 to complete the sentences. Each noun is used once.

1.The  of fossil fuels has gradually increased in many countries which is concern for many environmentalists.

2.The increase in cases of skin cancer has been recorded in parallel with ozone layer .

3.Intensive pesticide and fertilizer sprays used in agriculture have resulted in the serious  of water, soil and air.

4.The  of this river has been proved by scientists to be caused by the dumping of untreated sewage.

5.Scientists are able to explain the consequences of habitat  now.

6.Every year about 15,000 acres of fertile topsoil are washed away in Haiti, which has resulted in massive soil .

7.The  of the environment from threats such as deforestation, the extinction of rare species, pollution and natural resource depletion is one of the WWF's missions.

8.The  caused during the 20^th century made the vegetation in this region, which was originally a vast forest refuge for innumerable species, disappear.

ĐÁP ÁN 

5) Read and underline the incorrect words in the following sentences. Correct them.

1. Scientists have tried to assess the impact of human activities on the environmental.

2. We should have deforestation plans to replace the trees cut down for farmland use in the region.

3. Oceanic oil spills become a major environment problem, chiefly a result of intensified petroleum exploitation.

4. The rhino habitat has been perfectly preservation in the region.

5. The students are somewhat confusion by the usage of the words

6. Many climatologists believe that the decline in mountain glaciers is one of the first observable signs of globe warming.

7. Rising sea levels can add to the erode of our coastlines.

ĐÁP ÁN

1. environmental → environment

2. deforestation → forestation

3. environment → environmental

4. preservation → preserved

5. confusion → confused

6. globe → global

7. erode → erosion

6) Change the following sentences in direct speech to reported speech.

1.Nam said (that), "The environment is severely affected by pollution."

...............................................................................................................................................................................

2.Mai said (that), "The burning of fossil fuels leads to air pollution."

...............................................................................................................................................................................

3.Peter said (that), "Intensive insecticide and pesticide sprays in agriculture make the soil contaminated."

...............................................................................................................................................................................

4.Tony said (that), "The disposal of untreated sewage in rivers and oceans leads to water pollution."

...............................................................................................................................................................................

5.Mary said (that), "Loud and annoying sounds from innumerable vehicles in the highway nearby cause noise pollution."

...............................................................................................................................................................................

6.Mai said (that), "The rising sea level is a product of global warming, a natural phenomenon. The only unnatural thing about global warming is the accelerated rate at which it is happening."

...............................................................................................................................................................................

7.Linda said (that), "Environmental pollution is an impact of human activities on the environment."

...............................................................................................................................................................................

ĐÁP ÁN

1. Nam said that the environment was severely affected by pollution.

2. Mai said that the burning of fossil fuels led to air pollution.

3. Peter said that intensive insecticide and pesticide sprays in agriculture made the soil contaminated.

4. Tony said that the disposal of untreated sewage in rivers and oceans led to water pollution.

5. Mary said that loud and annoying sounds from innumerable vehicles in the highway nearby caused noise pollution.

6. Mai said that the rising sea level was a product of global warming, a natural phenomenon. The only unnatural thing about global warming was the accelerated rate at which it was happening.

7. Linda said that environmental pollution was an impact of human activities on the environment.

7)  Put the following text into conversational form using direct speech.

The editor of the newspaper introduced Mai to Peter, an environmentalist, who said he was pleased to meet her. She replied that it was her pleasure, and that she hoped Peter was enjoying his visit to the country and the newspaper office. Peter said he had thought the office was a small one, but it wasn't. He said that he liked the friendly environment of the country and that he was going to fly to Hawaii the following week.

The editor:.................................................

Peter: ................................................

Mai: ................................................

Peter: ................................................

ĐÁP ÁN

Hi Mai, this is Peter. He is an environmentalist.

I am pleased to meet you, Mai.

It's my pleasure. I hope you're enjoying your visit to the country and the newspaper office.

I thought the office was a small one but it isn't. I like the friendly environment of the country. I'm going to fly to Hawaii next week.