2.　　　 Many species are ________________ due to climate changes and human activities.

1.　　　 Generally speaking. new things __________________ young people.

10. Nowadays, what __________(标准) do we use to judge beauty?

9.　　　 When I was aboard, I felt _______________ (思乡的) for my hometown.

8.　　　 Did he really see a ghost or was it only a(n) ______________(主观的) impression?

7.　　　 We tried in ____________(白费心机) to make him change his mind.

6.　　　 The bear was _____________ (诱捕) by the hunter for its fur.

5.　　　 It is e_____________ to us all that he has no experience in this job.

4.　　　 When Mary saw her favorite singer in person, it gave her a big t____________.

3.　　　 My father r__________ himself to smoking two cigarettes a day.