3．favour C．n.农业

4．resource D．n.收入，收益

5．income E．n.资源

答案　1.C　2.B　3.A　4.E　5.D

[第二组]

6．frighten A．adv.从基因上，与基因相关

7．genetically B．vt.调整，修改；修饰

8．modify C．vt.插入，嵌入

9．insert D．vt.使惊吓，使惊恐

10．profit E．n.利润，收益

答案　6.D　7.A　8.B　9.C　10.E

[第三组]

11．catastrophe A．n.英亩

12．acre B．vi.&vt.获益；对......有用

13．profit C．n.灾难，灾祸

14．chain D．n.一系列，一连串(人或事)

15．permission E．n.准许，许可，批准

答案　11.C　12.A　13.B　14.D　15.E

Judge the following statements true (T) or false (F)．

1．Our natural resources have been made use of without harming nature to meet our needs.(　F　)

2．Many developed nations are now anxious about saving nature.(　T　)

3．Many poor countries are using up natural resources at a fast pace.(　T　)

1．People have harmed nature through all of the following activities EXCEPT .

A．fishing B．agriculture

C．tourism D．breathing

答案　D

2．According to this passage，all of the following statements are true EXCEPT that .

A．building new channels in the sea will do harm to the Earth

B．building factories on the land will further damage the Earth