最新高中英语必修三第四单元重点
高一英语必修三知识点总结：Unit4
以下是为⼤家整理的关于《⾼⼀英语必修三知识点总结：Unit4》，供⼤家学习参考！ Unit 4 Astronomy: the science of the stars 1. be fundamental to… 对……是基本的，必需的This is fundamental to a true understanding of the book. 这对真正理解这本书⼗分重要。
2. in sb’s presence 当着某⼈的⾯，有某⼈在场 She asked them not to discuss the matter in her presence. 她要求他们不要当着她的⾯讨论这个问题。
3. be harmful to… 对……有害的 = do harm to…The air here is harmful to our health. 这⾥的空⽓对我们有害。
4. There is no harm in doing sth. 不妨做某事 = It does no harm to do sth. He may not be able to help but there’s no harm in asking him. 他可能帮不了忙，但是求他⼀下倒也⽆妨。
5. exist on… 靠……⽣存 = live on…They exist on very little food. 他们靠极少的⾷物⽣存。
6. exist in… 存在于……中 Several people believe the Devil exists in the world. 少数⼈认为世界上存在恶魔。
7. in a puzzle 不知如何是好，很迷惑 I am in a puzzle about what he said. 我对他说的话迷惑不解。
8. in time 1)迟早;最后 = sooner or later; eventually 2)及时;不迟 = not late You’ll learn how to do it in time. 你早晚能学会做这件事的。
人教版高中英语必修三Unit4SpaceExploration重点归纳笔记(带答案)
人教版高中英语必修三Unit4SpaceExploration重点归纳笔记单选题1、Many enterprising young people present their ideas________ getting investment and advice to start their own b usiness.A．at the cost ofB．by means ofC．as a result ofD．in the hope of答案：D考查介词短语辨析。
句意：许多有进取心的年轻人提出了自己的想法，希望得到投资和开始自己事业的建议。
A. at the cost of以……为代价；B. by means of 用；C. as a result of 由于；D. in the hope of怀着……的希望。
根据句意可知，年轻人提出自己的想法是希望得到投资和建议，故in the hope of符合题意。
故选D。
2、These products received good customer response, ______ in 4% comparable store sales growth in November. A．resultedB．to resultC．resultingD．having resulted答案：C考查非谓语动词。
句意：这些产品获得了良好的客户响应，使得11月份销售额增长了4%。
result in“导致，结果是”，为固定短语；句中一有个谓语动词received，且无连词，故空处应用非谓语动词作状语；表示自然的结果，应用现在分词；此处不表动作的完成，故排除D。
故选C。
3、Tu Youyou was awarded the Nobel Prize for her ________ in discovering a new cure for malaria (疟疾). A．differenceB．decisionC．procedureD．achievement答案：D考查名词词义辨析。
全国通用2023高中英语必修三Unit4SpaceExploration必考知识点归纳
全国通用2023高中英语必修三Unit4SpaceExploration必考知识点归纳单选题1、The Clear Your Plate Campaign urges people________ food by not wasting anything on the dining table. A．savingB．to saveC．to have savedD．having saved答案：B考查非谓语动词。
句意：“清理你的盘子”运动敦促人们通过不浪费餐桌上的任何东西来节约食物。
固定搭配urge sb. to do sth.译为“敦促某人做某事”。
故选B。
2、Although the fan is somewhat limited in its applications, it is easy to operate and ________ it is fun.A．above allB．in the endC．as a resultD．before long答案：A考查短语词义辨析。
句意：虽然这款风扇在应用上有一定的局限性，但它操作简单，最重要的是它很有趣。
A. above all首先，最重要的是；B. in the end最后；C. as a result结果；D. before long不久以后。
根据“Although the fan is somewhat limited in its applications,”可知，这款风扇虽然有局限性，但操作简单，最重要的是很有趣。
故选A。
3、I am disappointed at hearing the bad news, so I am in no________ today to go to the movies with you. A．mindB．urgeC．moodD．desire答案：C考查名词。
句意：听到坏消息我很失望，所以今天没有心情和你一起全看电影。
必修三 unit4 单元知识重点
1). The naughty boy _______ (lie) to me that the hen that _______ (lie) there just now had ______ (lay) two eggs the day before.
2). In my opinion, ________ (prevent) is more important than treatment.
4. prevent...from 使……不做事；阻止……做某事
5. block out 挡住（光线）
6. be off = set off 出发；动身；不用上班/学/开张
7. break out (灾难、战争等)突发；爆发
8. watch out 密切注视；当心；提防
重点句子
1. It exploded loudly with fire and rock, which were in time to produce the water vapour, carbon dioxide, oxygen, nitrogen and other gases, which were to make the earth’ s atmosphere.
词形
变化
1. violent adj.强暴的，猛烈的
violence n.暴力，强暴；猛烈
violently adv. 强暴地；猛烈地
2. fundamental adj.基本(础)的n.[pl.]基本原则(法则)
fundamentally adv. 基本地；根本地
fundament n. 基础；根本
1). We shall go out for a picnic tomorrow if the _______ is fine.
人教版高中英语必修第三册 Unit 4 Space Exploration 单元重点小结
24. otherwise adv.否则;要不然 25. beyond prep.在更远处;超出 26. current adj.当前的;现在的 n.水流;电流;思潮 27. sufficient adj.足够的;充足的 28. towel n.毛巾;抹布 29. telescope n.望远镜 30. tissue n.纸巾;(人、动植物细胞的)组织 31. facility n.设施;设备 32. globe n.地球;世界;地球仪 → global adj.全球的;整体的 33. argue vt.& vi.论证;争辩;争论 → argument n.争论;争吵;论点
of carrying on space exploration despite the huge risks.
这是因为哪怕风险巨大,人类还是坚信太空探索极为重要。
3.
It
is necessary
to find
a new home for
people in space,as the resources on Earth will run out.
本课结束
4.Please give me a knife to cut with
.
请给我一把切东西的刀子。
5.Her mother plans to fly to Beijing at least four times a year
so as to/in order to visit her. 她母亲计划每年至少四次飞到北京去看她。
重点短语
1. be determined to do sth
决心做某事
2. in the hope of doing sth
抱着……的希望
高中英语必修三 Unit 4 必背单词和词块
必修三Unit4 必背单词和词块(一)背阅读单词——会认就行(背诵时遮住右侧汉语，先自主翻译，后比对词义)1.procedure n．程序；步骤；手续2．mental adj. 精神的；思想的3．gravity n. 重力；引力4．frontier n. 边境；国界；边远地区5．vehicle n. 交通工具；车辆6．launch vt.&n. 发射；发起；上市7．recycle vt. 回收利用；再利用8．current adj. 当前的；现在的n. 水流；电流；思潮9．sufficient adj. 足够的；充足的10．facility n. 设施；设备11．fatal adj. 致命的；灾难性的12．mystery n. 神秘事物；谜(二)背重点单词——写对才行1．desire n. 渴望；欲望vt. 渴望；期望2．signal vt.&vi. 标志着；标明；发信号n. 信号；标志3．lack n. 缺乏；短缺vt. 没有；缺乏4．float vi.浮动；漂流；漂浮vt. 使浮动；使漂流5．otherwise adv. 否则；要不然6．beyond prep. 在更远处；超出7．keen adj. 热衷的；渴望的8．shallow adj. 肤浅的；浅的9．pattern n. 模式；图案；模范10．analysis n. (对事物的)分析；分析结果11．monitor n. 监视器；监测仪vt. 监视；监测；监控12．resource n. 资源；财力；物力13．attach vt. 系；绑；贴(三)背拓展单词——用准才行1．Intelligent adj.有智慧的；聪明的；有智力的→intelligence n．智力；聪明；智能2．determine vt.查明；确定；决定→determined adj.有决心的；意志坚定的→determination n．决心；决定3．disappoint vt.使失望→disappointed adj.失望的；沮丧的→disappointing adj.令人失望的→disappointment n．失望4．independent adj.独立的；自立的→independently adv.自立地；独立地→independence n．独立5．globe n．地球；世界；地球仪→global adj.全球性的；全世界的6．argue vt.&vi.论证；争辩；争论→argument n．争论；争吵；论点7．regular adj.定期的；经常的；正常的→regularly adv.经常；定期地8．limit n．限制；极限；界限vt.限制→limited adj.有限的→limitless adj.无限的[语境活用]1．Since the country became independent in 1842, it has played an important role independently.(independent) 2．A person's life is limited but knowledge is limitless.(limit)3．Artificial intelligence has been used in phones, which makes them seem to be intelligent.(intelligent)4．She is a determined girl, so we know that once she has determined to do something, she will make her dream come true with great determination.(determine)5．To my disappointment,_I saw a disappointed expression on his face due to his disappointing testscore.(disappoint)6．He argued against smoking, and insisted that it was beyond argument that smoking was harmful to health.At last, he argued us out of smoking.(argue)(四)背高频单词——先“记牢”再“用活”，不背绝对不行1．determine vt.查明；确定；决定2．disappointed adj.失望的；沮丧的渴望；欲望vt.渴望；期望3．desire n．4．lack n．缺乏；短缺vt.没有；缺乏5．argue vt.& vi.论证；争辩；争论(五)背短语词块——表达出彩，需多积词块才行单元短语再认再现1．carry on继续做，坚持干2．on board 在宇宙飞船上；在船(飞机)上3．in the hope of doing_sth. 抱着……的希望4．so as to (do sth.) 为了；以便5．figure out 弄懂；弄清楚；弄明白6．result in 导致；造成7．as a result 所以；结果(是)8．provide for sb. 提供生活所需9．in closing 最后10．run out 用完；耗尽重点短语拓展用活1．result in导致；造成2．run out用完；耗尽(六)背主题写作——好习作就靠“仿效”和“背诵”议论文：太空探索是否值得？【题目要求】最近，你班同学就“太空探索是否值得”这一话题展开了一场讨论。
新人教高中英语必修3 Unit 4 XXX 知识点归纳单词、短语、语法
新人教高中英语必修3 Unit 4 XXX 知识点归纳单词、短语、语法Unit 4 XXX 知识点精讲一、词汇精讲1.determined adj。
有决心的；意志坚定的然而，一些科学家决意要帮助人类实现他们探索太空的梦想。
常用搭配：XXX do XXX 表示决心做某事（表状态）联想词：① XXX vt。
查明；确定；决定XXX (doing) XXX 表示决定（做）某事XXX do XXX 表示决定做某事（表动作）例如：XXX.他决定早点出发。
I left。
determined never to come back again.我离开了，下定决心再也不回来了。
（作状语时，只能用determined）② XXX n。
决心拓展“决定/决心做某事”的其他表达：decide to do sth。
make a n to do sth。
make up one's mind to do sth。
2.XXX n。
发射；发起；上市1957年10月4日，苏联发射的人造卫星“旅伴一号”成功绕地飞行。
常用搭配：XXX 表示（热情地）开始做，投入launch out 开始从事，投身于（新事情，尤指有风险的事）例如：Our marketing people have come up with a great idea for the launch of the new model.我们的营销人员为新型号的上市想出了一个好主意。
XXX。
XXX that was made。
We were disappointed to hear that you will not be able to come。
The disappointing news wasthat the event had to be XXX disappointment。
we still have a strong desire to make the event happen in the future。
高一英语必修三unit4知识点
in chains grow into for the first time in the past give birth to in one's turn prevent ...from depend on as a result of
习题练习：
In a room above the store, where a party __A___,some workers were busily setting the table.
常用例子
名词词组常见例子： no wonder/an honour/a good thing/a pity /no surprise/a fact 不及物动词常见例子： seem/turn out/appear/happen
习题练习二
It is not immediately clear _D____the
我的确不知道他们能否按时完成任务。
eg：Whether it is fine or not,we'll go to grandma's this weekend.
不管天气好不好，这个周末我们都要去 奶奶家。
in time 及时，迟早
at no time at one time in no time all the time kill time keep time at a time at times take one's time on time
Unit Four
by Show
system
系统，制度 计划，方法 条理，秩序
eg：你想要成功生活就要有条理。 You need some system in your life if you want to succeed.
人教版高中英语必修三Unit4重点词汇
运用 根据汉语意思完成英文句子。 ⑴ 昨天晚上, 两个小偷破门而入小李 家, 并偷走了一块手表。
Last night, two thieves b__r_o_k_e_i_n_t_o__
Xiao Li’s home and stole a watch.
⑵当地震发生时, 大家都在睡觉。 When the earthquake _b_r_o_k_e_o_u_t_, everyone was sleeping in bed.
必修③
Unit4航天科技
1. system n. 系统; 体系; 制度
例句 In our solar system eight planets circle around the sun. 在我 们的太阳系里，有八个行星绕太阳 运转。
搭配
the computer system 计算机系统 a railway system 铁路系统 the education system 教育体制 a social system 社会制度
派生 systematic adj.有条理的
运用 根据汉语意思完成英文句子。 我认为，目前的考试制度必须改革。
In my opinion, the present examination system must be reformed.
2. theory n. 学说; 理论
例句 However, according to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions. 但是，一种普遍为人们所 接受的理论是：宇宙起源于一次大爆炸， 这次大爆炸将物质投射到四面八方。
高中英语 人教版必修第三册unit4重点句式和语法讲解
UNIT 4 SPACE EXPLORATION本单元句法1.Astronauts not only had to learn how to use space equipment,but also had to do a lot of mental and physical training.宇航员不仅要学习如何使用太空设备,还要进行大量的心理和体能训练。
【句式剖析】句型not only...but also...是并列连词,在句中常用来连接两个对等的成分,着重强调后者,also可以省略。
【句式拓展】(1)not only...but also...用于连接两个表示并列关系的成分,着重强调后者。
(2)可连接两个并列的句子。
若not only位于句首时, not only后面的句子要用部分倒装。
(3)若连接的两个成分作主语,其谓语动词通常与邻近的主语保持一致。
so as to (do sth)为了;以便【词汇拓展】(1)so as to=in order to,但so as to一般不用在句首。
(2)in order to和so as to引导的目的状语可转换为so that或in order that 引导的目的状语从句,从句中常含有情态动词。
He bought an iPad so as to/in order to surf the Internet.=He bought an iPad in order that/so that he could surf the Internet.为了上网,他买了一个iPad。
make sb do sth使某人做某事be made to do sth被迫做某事The boss made them do very heavy work.老板让他们干很重的工作。
They were made to do very heavy work.他们被迫干很重的工作。
高中英语-人教版-必修三-第四单元-基础知识点-(笔记版)培训讲学
高中英语_人教版_必修三_第四单元_基础知识点_(笔记版)Unit 4system系统，体系solar system 太阳系 government systems 政府体系interest vt. 使…感兴趣常用：Sth. interest Sb. interested adj. 感兴趣的interesting adj. 令人感兴趣的eg: What he said interested all of us.We are interested in the interesting story.1.根据一个普遍接受的理论，宇宙起源于一次大爆炸，这次大爆炸把物质射向四面八方。
（背过）a widely accepted theory,the universe startedwith…. throw matter in alldirections.世界上独一无二的东西，前面加定冠词the, 例如：thesun, the moon, the earth,the university, the world.但是名词前若有adj修饰，一般用不定冠词a/an。
例如：There is a big moon in thesky.Start/begin with 以…开始；to start/begin with首先=firstof allwide adj.&adv. Wide做副词表示具体的宽 He lay here,with his eyes wide open./wide awake.widely adv. 修饰抽象的广泛的 The book is widely read.Direction表示方向常和in,from搭配。
从某个方向用from, 朝某方向用in.in all directions 四面八方in the opposite direction 朝相反的方向例如：The woman went tothe direction from whichshe came.这个女士走向她来的方向。
高中英语必修三第四单元重点、难点
高中英语必修三第四单元重点、难点Unit Four Astronomy: the science of the stars1、They were followed in time by land animals. 陆地动物及时出现。
in time及时；终于A stitch in time saves nine. 小洞不补，大洞尺五。
You will get used to it in time. 最终你会习惯的。
易混辨析：in time和on timein time表示“及时；终于”；而on time表示“按时”。
联想扩展：in no time 立即；马上at one time 曾经；一度at a time 一次at any time 在任何时候at times有时；偶尔from time to time 有时即时活用：– How often do you go to see your parents?--- __________.A. In no timeB. After a whileC. In a short timeD. From time to time答案：D2、They produced young generally by laying eggs. 它们以产蛋的方式生产后代。
lay eggs 下蛋How many eggs does you hen lay every week? 你的母鸡每周下多少蛋？联想扩展：lay the table 摆桌子lay up 储存；搁置lay over 推迟lay the blame on 责怪lay the foundation 奠定基础lay to 归咎于lay open 摊开；揭露lay out 摆开；展示lay aside 放在一边；积蓄lay down 放下；放弃lay for 等候3、These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.这些动物和以前的任何生物形式都不同，因为它们产仔并用奶水喂养它们。
高中英语必修3第4单元重点单词和短语讲解
必修3第4单元重点单词和短语讲解1.solar adj.太阳的，日光的solar system太阳系solar power 太阳能; 太阳能动力Somewomen now can use solarpower instead of gas stoves to boil water and cook food. 现在一些妇女使用太阳能代替煤气炉烧水做饭。
solar atmosphere and solar activities 太阳大气和太阳活动lunar阴历的, 月的lunar calendar阴历2.violent激烈的; 猛烈的; 强烈的；暴力的A shark is a kind of violent fish鲨鱼是一种有攻击性的鱼类.why do French has violent revolutions to bring about change？为什么法国靠暴力革命去寻求改变？1.The boat which was full of petrol sank in a ___ storm at sea.A. violateB. violenceC. violentD. violated选C violent ：激烈的;猛烈的;强烈的意思The boat which was full of petrol sank in a violent storm at sea.柴油充足的船在海上强烈的风暴中沉没了。
violate vt.1. 违犯;违背2. 侵犯;扰乱3. 亵渎;污损violence 是名词，暴力。
violated 是violate 的过去时。
3.explodeexplode: “迅速增长”；“发怒” 爆发；爆炸。
The population of this city has exploded in the last / past few years. 在最近几年里这个城市的人口急剧增加(explode)如果是“someone explodes”则是“发怒”的含义了。
高中英语必修三第四单元知识点总结
高中英语必修三第四单元知识点总结高中英语必修三第四单元知识点总结第四单元 1）solid 作名词，表示“固体”。
作形容词，表示“固体的，坚固的；实心的，纯的，牢靠的，立体的”。
be in solid with sb受某人的重视，与某人关系很好。
feel solid about sth对某事心里有底。
2）explode 表示“爆炸，（感情）迸发，迅速增加”。
explode with/into sth冲动，激动。
3）surface 作形容词，表示“表面的，水面的”。
作名词，表示“水面，表面，外表”。
on the surface在表面上，在外表上。
作动词，表示“加表层，重新出现，睡醒”。
4）dissolve 表示“溶解，融化，分解”。
表示“解散，解除，消除”。
5）multiply 表示“乘”，multiplyA by B表示“A 乘以B”。
表示“繁殖，增加”。
6）generally 表示“一般地，通常地”，可以放在谓语动词之前或者系动词之后。
generally speaking表示“一般来说，总的来说”常放在句首作状语。
7）spread 表示“伸展，展开，传播”。
spread…with… 把……铺在……上，把……涂在……上。
spread…on… 在……涂抹……。
spread oneself伸展四肢仰卧，夸夸其谈。
spread one’s net布下落网。
8）prevent 是动词，后面可以直接跟宾语。
prevent…from…阻止，制止。
from可以省略。
9）depend depend on/upon依靠，依赖，取决于。
it（all）depends，that depends表示“看情况而定”，单独使用，或用于句首。
10）exist 表示“生存，存在”。
exist in 存在于……中。
exist on，exist by都表示“靠……生活”。
但exist o后的宾语通常指食物，收入，薪金。
人教版高中英语选择性必修第三册精品课件 Unit 4 单元重点小结
单元重点小结
英语
重点单词
1. adversity n.困境;逆境
2. wage n.工资
3. bitter
adj.严寒的;激烈而不愉快的;味苦的
4. enthusiastic adj.热情的;热心的
5. aboard adv.& prep.上(船、飞机、公共汽车等)
6. cupboard n.橱柜;壁橱;衣柜
念→ resolution
n.决议;解决;坚定
14. crew n.(轮船、飞机等上面的)全体工作人员;专业团队;一群人
15. cruel
adj.残酷的;残忍的;冷酷的
16. thorough
adj.深入的;彻底的;细致的
17. furniture
n.家具
18. fortunately
adv.幸运地→ unfortunately adv.不幸地;遗憾地
19. bark vi.& n.(狗)吠叫;吠叫声
20. bat
n.球拍;蝙蝠 vi.& vt.用球板击球;挥打;拍打
21. damp adj.潮湿的;湿气重的
22. guidance
n.指导;引导;导航→ guide v.引导 n.向导
23. advertise
vt.& vi.公布;宣传;做广告→ advertising n.广
放出(热、光、气味或气体)
8. cheer sb up
为某人喝彩;为某人加油
重点句型
1.But I was so enthusiastic about the idea of going along with them
that
I secretly went aboard his ship,the Endurance,and hid in a small
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高中英语必修三第四单元重点、难点Unit Four Astronomy: the science of the stars1、They were followed in time by land animals. 陆地动物及时出现。
in time及时；终于A stitch in time saves nine. 小洞不补，大洞尺五。
You will get used to it in time. 最终你会习惯的。
易混辨析：in time和on time in time表示“及时；终于”；而on time表示“按时”。
联想扩展：in no time 立即；马上at one time 曾经；一度at a time 一次at any time 在任何时候at times有时；偶尔from time to time 有时即时活用：– How often do you go to see your parents? --- __________.A. In no timeB. After a whileC. In a short timeD. From time to time 答案：D2、They produced young generally by laying eggs. 它们以产蛋的方式生产后代。
lay eggs 下蛋How many eggs does you hen lay every week? 你的母鸡每周下多少蛋？联想扩展：lay the table 摆桌子lay up 储存；搁置lay over 推迟lay the blame on 责怪lay the foundation 奠定基础lay to 归咎于lay open 摊开；揭露lay out 摆开；展示lay aside 放在一边；积蓄lay down 放下；放弃lay for 等候3、These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.这些动物和以前的任何生物形式都不同，因为它们产仔并用奶水喂养它们。
give birth to…生产；产生She gave birth to a healthy baby last night. 昨晚她生了一个健康的婴儿。
That century gave birth to many great men. 那个世纪产生了许多伟人。
4、These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.这些动物和以前的任何生物形式都不同，因为它们产仔并用奶水喂养它们。
feed vt. 用法归纳：（1）饲养If I am laid-off, I will feed some pigs. 如果下岗，我就养猪。
Do you feed any pets at home? 你在家养宠物吗？特别提示：feed作“饲养”讲时，等于raise 和keep。
（2）喂养We feed grass to sheep. 我们给羊喂草。
We feed sheep with grass. 我们用草喂羊。
特别提示：注意feed当“喂养”讲时动物和饲料的前后顺序关系以及不同介词的用法。
即时活用：1、He______ a lot of chicken______ his farm.A. rises; in B. keeps; on C. raises; in D. supports; on2、– I have a very bad cold.--- Well, have you ever heard of a saying which goes “_______ a cold and starve a fever?”A. feedingB. to feedC. fedD. feed 答案：BD5、Finally about 2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the world.最后大约在两百六十万年前，一些有手有脚的小型聪明动物出现了，并且扩散到世界各地。
spread v.用法归纳：（1）传播；传开（vi.）Bad news spreads quickly. 坏消息传的很快。
Word spread that there was a variant virus of H1N1. 消息称H1N1病毒已经产生变异。
（2）铺开；展开(vt.) The bird spread its wings and was about to fly. 鸟伸开翅膀准备要飞。
She spread a new sheet over the bed. 她给床上铺了一个新床单。
（3）涂；抹(vt.) Please spread the paint evenly. 把油漆抹均匀。
It’s better for you to spread the honey on the bread. 你最好把蜂蜜抹在面包上。
（4）伸展；延伸（vi.）Xi’an is spreading to the north and the west. 西安正在向北向西延伸。
The forest spreads from here to the foot of Qinling mountains. 森林从这儿延伸到秦岭山脚下。
联想扩展：spread out 伸开；散开；铺开spread over 覆盖一片；持续spread with 在…上涂抹即时活用：Soon the news ________ across the whole country, ______the people.A. spread; excitingB. spread; excitedC. was spread; excitedD. was spread; exciting 答案：A6、Thus, in their turn, become the most important animals on the planet. 这样，轮到它们成为这个星球最重要的动物。
in one’s tur n轮到某人；接着Please get on the bus in your turn. 该你上车了。
联想扩展：at every turn 事事；经常by turns 轮流go for a turn 散步；除去兜风on the turn 在变质out of turn 不合时宜的take a turn 转弯take turns 轮流to a turn 恰好7、They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. 它们向大气层排放大量的二氧化碳，这阻止热量向外层空间释放。
prevent…from doing 防止/阻止…发生We must prevent the news from spreading. 我们应该阻止这个消息的传播。
Nothing can prevent him from going away. 什么也不能阻止他离开。
特别提示：(1)这个句型中prevent还可以被stop或keep替代。
(2)主动句中，prevent和stop后面的from可以省略，keep后的from不能省略；被动句中三个词后的from都不能省略。
联想扩展：prevent vt. 防止；预防；阻止（1）跟名词或代词Man is finding ways to prevent natural disasters. 人类正在寻找预防自然灾害的办法。
Vitamin C is supposed to prevent colds. 据认为维生素C能预防感冒。
（2）跟动名词Teachers now have no ways to prevent students’ listening to MP3 in class.老师们现在没办法阻止学生们上课听MP3。
H1N1 flu prevented his coming to school. 甲流使他不能来上课。
（3）prevention n.预防；防止（4）preventive adj. 预防性的即时活用：1、We should do what we can to ______ the Changjiang River______.A. stop; from pollutingB. keep; from being pollutedC. prevent; from pollutingD. keep; being polluting2、Nobody can stop the naughty boy ______.A. from punishing B. being punishing C. from being punished D. to be punished3、The heavy rain ______ us starting out on time. A. kept B. prevented C. protected D. was stopped4、It seems very difficult _________.A. to stop the child to cryB. restraining the child to cryC. to keep the child from cryingD. holding the child’s cr ying答案：B C BC8、So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. 所以，在未来几百万年时间里生命能否在地球上延续取决与这个问题能否得到解决。