5. My dad says he doesn’t mind a little bit of pollution, as long as it means people have jobs.

4. What if we run out of space?

3. …each speaker’s speech is meant to convince you.

2. The world’s population has grown to more than six times what it was in 1800.

1. This will have lasting effect on the number of fish ….

14. prohibit sb. (from) doing sth. / one’s doing sth.

13. reverse　 reversed the car / the paper

reverse the judgment

12. account　　　 read an account of …

n.　 on account of = because of

on no account

　　　　　　　　 take … into account

11. occur　 Sth occur to sb.

　　　　　 It occurs to sb. to do sth / that ….

　　　　　 happen / hit upon

　　　　　　 vt.　 account sb. + adj. / n.

account for = explain

10. conclude　　 conclude that …

　　　　　　　 n ：conclusion：arrive at / come to / draw / reach / make a conclusion

　　　　　 occur - occurred – occurred - occurring