21. admit=acknowledge=confess=to tell the truth 承认 v.
22. be similar to=like=resemble=bear a resemblance to=akin to 相似 v. 23. result in=lead to=cause=give rise to=bring about 引发，导致 24. sophisticated=advanced=high-tech=complex=complicated 复杂的 25. address=solve=deal with=handle 处理 v.
26. imitate=copy=impersonate=follow one's example 模仿 v. 27. maintain=continue=carry on=keep up=preserve 维持 v. 28. feed=eat=have=chew=swallow=consume 喂食 v. 29. illustrate=show=demonstrate=make clear=reflect 说明 v. 30. memorise=learn=commit something to memory 记忆 v. 31. conventional=traditional=conformist=conservative 传统的 v. 32. notice=see=spot=be aware of=be conscious of 注意到 v. 33. retain=keep=save=hold on to 保持 v.
34. convince=persuade=win sb. over=satisfy 使确信 v.
35. spectacular=impressive=imposing=striking=grand 壮观的 adj. TEST 2
1. interior=inner=inside 内部的 adj. 2. change=shift=alter=transfer 改变v. 3. establish=build=found=set up=start 建立 v. 4. official=authority=leader=supervisor 官员 n.
5. isolated=inaccessible=distant=remote=faraway 隔离的, 边远的 adj. 6. collapse=fall=fall over=fall down 倒塌 v.
7. destroy=devastate=wreck=obliterate 毁灭 v. 8. absorb=digest=take in=assimilate 吸收 v. 9. severe=serious=stiff=heavy 严重的 adj. 10. purify=refine=distill 净化 v.
11. hidden=disguised=concealed=veiled 隐藏的 adj. 12. decline=decrease=reduce=fall=drop 下降 v. 13. deteriorate=get worse=go down=decline 变坏 v. 14. recognize=know=identify=pick out 认出 v.
15. conclude=summarize=come to/reach the conclusion 得出结论 v. 16. adapt to=get used to=become accustomed to=adjust to 适应 v. 17. initiate=start=launch=open=set in motion 开始，发起 v. 18. refer to=mention=allude to=touch on 提到 v. 19. identify=name=recognize=diagnose 确定，认同 v. 20. request=demand=claim=petition=appeal 要求 n.
21. be divided into=separate=split=break up=break down 分开 v. 22. consist of=be made up of=be composed of=comprise 由…组成 23. hinder=hamper=impede 阻碍 v.
24. objective=aim=purpose=goal=target 目标 n.
25. implement=carry on=execute=put sth. Into practice 实行 v. 26. promote=encourage=help=aid 促进 v. 27. warn=caution=alert=give sb. a warning 警告 v. 28. observation post=watchtower 瞭望塔 n.
29. access=entrance=entryway=way in 通路，进入 n. TEST 3
1. cause=reason=factor=origin=root 原因 n. 2. measure=weigh=time=take=read 测量 v. 3. route=motorway=highway=expressway 车道 n. 4. exclude=omit=miss out=leave out=drop 排除在外 v.
5. renewable=sustainable=recycling=environmentally friendly 可再生的 adj. 6. exist=there is/are=be found=occur 存在 v. 7. limit=restrict=constrain=confine=keep to 限制 v. 8. boundary=border=edge=outskirts=frontier 边界 n. 9. allow for=make sth. Possible 使…成为可能
10. proposal=suggestion=recommendation=proposition 提议 n. 11. urban=city=town=municipal 城市的 adj. 12. odour=smell=stench=stink 味道 n. 13. find one's way=navigate 导航 v. 14. bearing=position=standing 方位 n. 15. exchange=share=distribute 分享 v.
16. waste=unwanted materials=rubbish=garbage=trash 废物 n. 17. dental=teeth 牙齿的 adj.
18. priority=preferential=the most important=overriding 优先 n. 19. encourage=promote=help=support=be supportive 鼓励 v. 20. explore=look for=discuss=think 探索 v.
21. factor=cause=reason=root=origin 因素 n. 22. cultivate=grow=raise 培养 v.
23. convert=modify=transfer=adapt=customize 转变 v. 24. digest=take in=absorb=assimilate 消化 v.
25. preserve=protect=keep=store=keep sth. In storage 保存，保护 v. 26. monitor=watch=keep an eye on 监视 v.
27. allocate=distribute=apportion=grant=confer 分配 v. 28. decline=decrease=reduce=fall=drop 下降 v. 29. fragile=weak=delicate=breakable=feeble 脆弱的 adj.
30. upgrade=improve=make sth.better=make improvements 改进，提高 v. 31. advanced=developed=sophisticated=high-tech 先进的 adj.
32. sustainable=renewable=recycling=environmentally friendly 可持续的 adj. 33. evidence=proof=documentation 证据 n.
34. long-standing=lengthy=long-running=lasting 长期的 adj. TEST 4
1. large numbers of=tens of thousands of=many 大量的 2. large=massive=huge=enormous=vast 巨大的 adj. 3. resemble=look like=alike=much the same=akin to 相像 v. 4. foe=enemy=adversary=hostile 敌人 n. 5. more than=exceed=over=in excess of 超过 v. 6. decrease=crash=reduction=fall=drop 下降 n. 7. stop=halt=come to a halt 停止 v.
8. sufficient=abundant=enough=adequate 充足的 adj. 9. establish=found=build=set up 建立 v.
10. be Successful=prosper=do well=succeed=thrive 成功 11. recognize=certify=accept=acknowledge承认 v. 12. label=display=call=brand=hail 贴标签，命名 v.
13. adapt=adjust=get used to=become/grow accustomed to 适应 v. 14. mistake=error=fault=slip=mix-up 错误 n.
15. keep a check on=monitor=watch=keep an eye on 监视 v. 16. unexpected=unpredictable=unforeseeable 不可预见的 adj.
17. generally=in general=in the whole=all in all=all things considered 大体上的 adv. 18. previously=before=earlier=formerly 先前 adv. 19. apply=use=make use of=exercise=utilize 应用 v.
20. due to=because=since=owing to=thanks to=as a result of 因为 21. raise=lift=lift up=pick up=scoop up 使…上升 v.
22. in addition=besides=additionally=too=also=as well 除此之外 23. inhabitant=resident=population=citizen=local 居民 n. 24. collapse=failure=fall 崩塌，失败 n. 25. set up=establish=found=start=open 建立
26. ensure=make sure=make certain=see to it that 保证 v. 27. assist=help=aid=give a hand=do sth. For 协助 v. 28. deny=refuse=withhold 否认 v.
29. permit=allow=let=agree to=authorize 许可 v.