1 . Look at the underlined word(s) in each sentence and choose the most similar meaning.
1. Mass extinction is caused by hunting, habitat loss, and pollution.

A．huge

B．most

C．common

2. Our planet’s wildlife is dying out at an alarming rate.

A．price

B．speed

C．interest

3. What measures are being taken to help them?

A．efforts

B．amounts

C．signs

4. The authorities are under pressure to build elephant parks.

A．organisations

B．experts

C．government departments

5. This is why we’re here — to observe Tibetan antelopes.

A．notice

B．follow

C．carefully watch

6. The antelope population has recovered.

A．returned to its earlier level

B．become well again

C．got back money

7. The government does not intend to stop the protection programmes.

A．pretend

B．try

C．plan

8. Without variety, our planet cannot survive.

A．numbers

B．differences

C．shows