Unit 6 Disaster and hope 二-2025-2026学年高中英语必修第三册期末词汇复习（外研版）

期末词汇复习 必修第三册·外研版·Unit6Disasterandhope二 一、重点单词详解 1:crisis 一、核心考点 词性：名词(n.) 核心义：n.危机：危急关头 二、必记搭配与例句 economic/political crisis(经济/政治危机)：The country is facing a serious economic crisis. in crisis(处于危机中)：The company is in crisis because of poor management. face a crisis(面临危机)：We must face the crisis bravely 三、重点辨析 crisis vs.disaster:crisis指”危机，转折点”，强调需紧急应对的困难局面；disaster指 灾难，侧重自然或人为的严重破坏。 2:threaten 一、 核心考点 词性：动词(v.) 核心义：v.威胁：危及；预示（坏事） 二、必记搭配与例句 threaten to do sth.(威胁要做某事)：He threatened to quit the team. threaten sb.with sth.(用某物威胁某人)：The robber threatened the clerk with a knife threaten the environment(危及环境)：Pollution threatens the environment. 三、重点用法 主动表被动：The dark clouds threatened rain.（乌云预示要下雨。) 3:precisely 核心考点 词性：副词(adv.) 核心义：adv.精确地；恰好；正是 二、必记搭配与例句 speak precisely(精确地说)：Please speak precisely to avoid misunderstanding at precisely3o'clock（恰好在3点)：The meeting will start at precisely3o'clock. precisely because（正是因为)：He succeeded precisely because he worked hard. 三、重点辨析 precisely vs.exactly:均可表”精确地”，precisely侧重细节准确，exactly侧重与事实完 全一致。 4:billion 一、核心考点 词性：数词(num.) 核心义：nm.十亿；大量 、 必记搭配与例句 two billion people(二十亿人)：China has a population of over 1.4 billion people. billions of dollars(数十亿美元)：The project cost billions of dollars a billion times(十亿次)：I've told you a billion times to be careful 三、重点用法 英美差异：均表示”十亿”（基数词），无歧义；与million(百万)、trillion（万亿)构成 数量级序列。 5:otherwise 一、核心考点 词性：副词(adv.)、连词（conj.) 核心义：adv.否则；另外；在其他方面conj.否则 必记搭配与例句】 act otherwise(采取不同行动)：You should act othe1 wise in this situation. behave otherwise than expected(行为与预期不同)：He behaved otherwise than expected. Hyup,otherwise you'll be late.(快点，否则你会迟到。) 三、 重点辨析 otherwise vs.however:othe1wise表”否则；在其他方面，however表”然而”（转折)。 6:sufficient 核心考点 词性：形容词(adj.) 核心义：adj.足够的；充分的 二、必记搭配与例句 sufficient time/money(足够的时间/钱)：We have sufficient time to finish the project be sufficient for sth.（对某事足够)：The food is sufficient for all guests sufficient evidence(充分证据)：We need sufficient evidence to prove his guilt.. 三、重点辨析 sufficient vs.enough:均表”足够的，sufficient较正式，enough可作后置定语（如good enough),sufficient不可。 7:shelter 一、 核心考点 词性：名词(n.)、动词(v) 核心义：n.庇护；避难所；遮蔽物v.庇护；躲避 二、必记搭配与例句 a homeless shelter(无家可归者收容所)：The city built a new homeless shelter. take shelter from(躲避风雨等)：We took shelter from the rain under a tree seek shelter(寻求庇护)：Many birds seek shelter in trees during winter. shelter sb.from sth.(保护某人免受某事伤害)：Parents shelter their children from danger. 8:property 核心考点 词性：名词(n.) 核心义：n.财产；资产；性质：特性 二、必记搭配与例句 real estate property（房地产)：He invested in real estate property. personal property(个人财产)：Protect your personal property carefully. chemical properties(化学性质)：Water has unique chemical properties. public property(公共财产)：It's our duty to protect public property. 9:threat 、 核心考点 词性：名词（(n.) 核心义：n.威胁：构成威胁的人事 二、必记搭配与例句 pose a threat to(对…构成威胁)：Pollution poses a threat to human health a serious threat(严重威胁)：The hurricane was a serious threat to the coastal area nder threat(受到威胁)：Many species are under threat of extinction take threats seriously(认真对待威胁)：We must take threats seriously. 二、词汇巩固练习 (一)单项选择(10题) 1.The country is facing a serious economic_which affects millions of people A)crisis B)disaster C)threat D)property 2.The dark clouds in the sky to bring heavy rain this afternoon A)threaten B)shelter C)precise D)billion 3.The meeting will start at_3 o'clock,so please arrive on time. A)otherwise B)precisely C)sufficiently D)critically 4.The population of this city has grown to over two in the past decade A)billion B)billions C)billionth D)million 5.You must hand in your homework by Friday,_,you will lose points. A)however B)otherwise C)therefore D)besides 6.We needevidence to prove his guilt in the court A)sufficient B)enough C)adequate D)proper 7.During the storm,many families sought in the community center. A)shelter B)property C)threat D)crisis 8.The_of the new material include high strength and heat resistance. A)properties B)possessions C)shelters D)threats 9.Air pollution poses a great to the health of people living in cities. A)threat B)threaten C)threatening D)crisis 10.She behaves_than her sister,always thinking before acting. A)otherwise B)precisely C)sufficiently D)critically (二)根据提示补全句子(10题) 1.The company is in a (because of poor management.(crisis) 2.His_()to quit the team made everyone worried.(threat) 3.Please measure the length_(精确地)to avoid mistakes.(precisely) 4.The number of stars in this galaxy is estimated to be()of billions.(billions) 5.You should study hard,(否则)，you won't pass the exam.(otherwise) 6.We have()time to finish the project before the deadline.(sufficient) 7.The local government built a new_(避难所)for homeless people.(shelter) 8.The chemical()of water make it essential for life.(properties) 9.The forest fire was_()the lives of animals in the area.(threatening) 10.In times of_(危机)，people often show great courage.(crises) (三)首字母填空(10题) jeden.The economic chas led to high unemployment rates in many countries. 2.The boss t to fire anyone who is late for work again. 3.The experiment requires p measurements to get accurate results. 4.China has a population of over 1.4 bpeople. 5.Finish your homework first,o,you can't watch TV tonight. 6.We need s funds to build the new school library. 7.Many birds find s in the trees during cold winters. 8.Gold has the pofnot rusting easily. 9.The tof a hurricane forced people to evacuate the coastal area. 10.The team must work together,o_,they will lose the game. (四)答案与解析 1.单项选择答案：AA BABAAAAA 2.补全句子答案： 1.crisis 2.threat 3.precisely 4.billions 5.otherwise 6.sufficient 7.shelter 8.properties 9. threatening 10.crises 3.首字母填空答案： 1.crisis 2.threatens 3.precise 4.billion 5.otherwise 6.sufficient 7.shelter 8.property 9. threat 10.otherwise 英语词汇复习手册·必修第三册·Unit6 Disaster and hope二