p261-265

Question 1

obligation

Answer 1

n义务,责任

Question 2

put sb on the right track

Answer 2

走上正轨

Question 3

irreversible

Answer 3

adj不能倒逆的,不能翻转的,(决议等)不能撤回的,不能取消的(变更的)

Question 4

exhaust

Answer 4

耗尽,vt 使精疲力尽;耗尽, n排气装置;废气(液)

Question 5

dispose

Answer 5

vt 排列;倾向于 vi 去掉;处理

Question 6

renewable

Answer 6

adj 可再生的;可更新的;可继续的.n 可再生资源

Question 7

make optimal use of

Answer 7

最理想利用

Question 8

deterioration

Answer 8

n恶化,退化,堕落

Question 9

aggravate

Answer 9

v恶化, vt 加重剧,使恶化;激怒,使恼火

Question 10

depletion

Answer 10

消耗;损耗;放血

Question 11

cure-all

Answer 11

万能良药

Question 12

unbridled

Answer 12

adj (马)解开缰辔;不受抑制的,无束缚的,放纵的,蛮横的

Question 13

discharge

Answer 13

vt 释放;排出. vi排出,放电 n释放;排出

Question 14

barren

Answer 14

adj 贫瘠的;不生育的,没有结果的

Question 15

tackle

Answer 15

vt 对付,交涉

Question 16

water disposal

Answer 16

污水处理

Question 17

virgin materials

Answer 17

纯净原材料

Question 18

virgin

Answer 18

处女,未婚女子 adj 处女的,纯洁的;未经利用的,处于原始状态的

Question 19

spontaneous commitment

Answer 19

自发的贡献

Question 20

preserve

Answer 20

维护,维持;保存

Question 21

contamination

Answer 21

污染

Question 22

substitute

Answer 22

n代用品,代替者 v代替

Question 23

exploit

Answer 23

vt 剥削;利用

Question 24

detrimental

Answer 24

adj 有害的,不利的

Question 25

pose a threat to

Answer 25

造成威胁

Question 26

spoil

Answer 26

损坏;溺爱

Question 27

devastate

Answer 27

vt破坏

Question 28

urban sprawl

Answer 28

城市扩张

Question 29

throw-away

Answer 29

adj丢弃的;一次性的

Question 30

salvage

Answer 30

vt 抢救,营救

Question 31

scarcity

Answer 31

n缺失,不足,稀少

Question 32

curb

Answer 32

vt控制,约束 n 控制

Question 33

contaminate

Answer 33

vt 弄脏,污染