TIẾNG ANH 8 - UNIT 7

If the temperature ______ rising, the polar ice caps will melt. 

• kept

• keeps

• has kept

• will keep

Because of .................. pollution, the bicycle may someday replace the automobile.

• water

• air

• noise

• soil

Students should learn some practical ways that help to .................. pollution.

• save

• cure

• reduce

• shorten

.................................. she left the party, Jenny said goodbye to the host.

• Before

• After

• As soon as

• Until

People think that global warming ....................... lots of problems in the future.

• cause

• is causing

• will cause

• has caused

We saw many beautiful birds while we ............... in the lake.

• fished

• would fish

• are fishing

• were fishing

Environmental protection refers to activities that ............... or restore the quality of the environment.

• maintain

• participate

• concentrate

• involve

Public education is probably the most important activity in wildlife ......................

• conservation

• prevention

• treatment

• stopping

The environment won't help us if we ................it.

• annoy

• worry

• alarm

• disturb

A: ................................... by the 3Rs?

B: They are Reduce, Reuse, and Recycle.

• What are they

• What do you mean

• When do you use

• What does it stand