EX1:

1/ Emission (n): Khí thải.

2/ Infectious (a): Lây nhiễm.

3/ Ecological (a): Sinh thái.

4/ Environmentalisht (n): Nhà môi trường học.

5/ Extinction (n): Sự tuyệt chủng.

6/ Numerous (a): Nhiều.

7/ Disrupt (v): Gây cản trở.

8/ Capture (v): Bắt.

9/ Absorb (v): Hấp thụ.

10/ Famine (n): Nạn đói.

          EX2:

1/ was accused

2/ giving

3/ having received

4/ having asked

5/ having switched

6/ breaking

7/ dumping

8/ promoting

          EX3:

1/ Having drunk too much

2/ Having seen the photograph of the place

3/ After having fallen from the horse back

4/ having realized that he was a liar.

5/ having realized the dangers of chemical fertilizers.

1/ Emission.

2/ Infectious.

3/ Ecological.

4/ Disruption.

5/ Extinction.

6/ Appearance.

7/ Diversity.

8/ Significantly.

9/ Lawmakers.

10/ Deforestation.

          EX4:

1/ He was accused of having stolen the money.

2/ She stood up suddently, upsetting a glass of wine.

3/ Suspecting nothing, he walked right into the trap.

4/ Having finished all his homework, he went to bed.

5/ Having seen the film before, I didn't went to go to the cinema.