冀教版九年级英语上册 Unit 2 Great People 重点单词、短语、句式辨析
Unit 2 Great People单词1. meaning作可数名词，意为“意思”，是动词mean的动名词形式起形容词作用。
Can you tell me the meaning of this new word? 你能告诉我这个生词的意思吗？2. successful作形容词，意为“获得成功的、有成就的”，在句中作定语或表语。
This is a successful decision. 这是一个成功的决定。
I think you’ll be successful in the fut ure. 我想将来你会成功的。
success 是不可数名词，意为“成功”；succeed 是不及物动词，意为“成功”。
表示“在??方面成功”用句式be succeeded in?。
Failure is mother of success. 失败是成功之母。
They are succeeded in solving all the problems. 他们成功地解决了所有的问题。
3. solve作及物动词，意为“解答、解决”，后加名词或代词作宾语。
I don’t think I can solve these problems. 我想我不能解决这些问题。
4. pioneer作可数名词，意为“先锋、先驱、带头人”，复数形式是pioneers。
As a technician, he is a remarkable pioneer. 作为技术人员，他是个了不起的先驱。
5. introduction作可数名词，意为“初次投入使用、引进、推进、介绍”，它是动词introduce的名词形式。
The introduction of this new skill brings many changes to us. 这种新技能的引进给我们带来了很多变化。
6. leader作可数名词，意为“领导者、领袖”，它是动词lead 的名词形式，复数形式是leaders。
hanks to the good leader, this company is becoming better and better. 多亏有好的领导，这家公司才变得越来越好了。
7. produce作及物动词，意为“出产、生产”，是后加名词或代词作宾语。
Our factory produces radios and televisions. 我们工厂生产收音机和电视机。
product是produce 的名词形式，意为“产品”。
This kind of product sells well. Is that so? 这种产品很畅销。
是这样吗？8. blind作形容词，意为“失明的、瞎的、盲目的”，在句中作表语或定语。
另，the blind表示“盲人”，是集体名词。
Her uncle is blind in both eyes. 她叔叔双目失明。
This is a very blind decision. 这是一个很盲目的决定。
9. illness作可数名词，意为“病、疾病”，复数形式是illnesses。
I think this is a strange illness. 我想这是一种奇怪的疾病。
He is recovering from an illness. 他病后正在恢复中。
10. remain作不及物动词，意为“仍然是、保持不变”，后加形容词或介词短语。
Why did they remain silent? 他们为什么保持沉默？The government remains in control. 政府仍然控制着局势。
作不及物动词，意为“停留在某处”。
She will have to remain in hospital for a week. 她至少要在医院呆一个星期。
11. medical作形容词，意为“医学的、医疗的”，在句中多作定语，后加名词。
My brother is studying in a medical college. 我哥哥在一所医学院学习。
短语1. be good to短语be good to somebody 意为“对某人态度友好”。
类似句式还有：be polite to, be friendly to, to kind to, be nice to, be rude to等。
His classmates are all friendly to him. 他的同学们对他很友好。
2. be famous for短语be famous for 意为“因??而著名、出名”，后加表示物的名词、代词作介词for的宾语。
Hangzhou is famous for tea and silk. 杭州因茶和丝绸而出名。
类似短语be famous as意为“作为??而著名、出名”；后加表示人的名词、代词作介词as的宾语。
Yang Liping is famous as a dancer. 杨丽萍作为舞蹈演员而出名。
3. make progress短语make progress表示“取得进步”。
Danny has made great progress recently. 丹尼近来取得了很大的进步。
4. at the age of短语at the age of 意为“在??岁时”，后加基数词的单数形式，用来表示年龄，可以与“when + 主语+ be + 年龄”替换。
He began to learn the accordion at the age of four. = He began to learn the accordion when he was four years old.他四岁时开始学手风琴。
5. make a decisiondecision意为“决定”，这是动词decide 的名词形式，多与动词make 连用构成短语make decision，表示“做出决定”。
Did they make any decisions at the meeting? 他们在会上做出决定了吗？2014年秋九年级英语上册Unit 2 Great People重点句式讲解（新版）冀教版1. Those are all really important questions and very difficult to answer.句式“be + 形容词+ 不定式”意为“很……做某事……”。
如：This kind of work is easy to complete. 这种工作很容易完成。
2. I’m not sure how to answer them.不定式可以与疑问词who, what, which, when, how, where 等连用，构成不定式短语，在句中作主语、表语、宾语和宾语补足语等。
如：Where to buy this kind of computer is a problem. 到哪里去买这种计算机是一个问题。
I really don’t know what to do. 我的确不知道该怎么办了。
3. The important thing is not to stop questioning.这句话中的not to stop questioning 是动名词的否定形式，它由否定副词not 加上动名词构成。
在这句话中，动名词用在系词后作表语。
如：He is worried about not going to the concert. 他担心的是不能参加音乐会。
To us students, the first task is studying hard. 对我们学生来说，第一任务就是努力学习。
4. In the dream, he grew a new type of rice that was as big as apeanut.句式as … as … 表示程度相同，第一个as是副词，后加形容词或副词的原级。
如：Jim is as honest as Billy. 吉姆和比利一样诚实。
She works as carefully as her sister. 她和她姐姐工作一样认真。
句式not as (so) … as 表示一方不如另一方。
如：I don’t run as (so) fast as you. 我不如你跑得快。
5. Since then, he has spent much of his time researching and developing new varieties.表示“花费”，可用于两个句式中：spend … on … 和spend … (in) doing …。
如：Each person spent about 100 yuan on food every month. 在伙食上每人每月花100元左右。
He doesn’t spend all his time (in) working. 他没有把全部精力用在工作上。
6. Before her illness, Helen was a bright and happy girl.before her illness是介词短语，意为“在生病之前”，在句中作状语。
我们可以用时间状语从句Before she was ill替换它。
这种介词短语作状语的句式可用从句进行替换。
如：Nothing can live without air or water. = Nothing can live if there is no air or water. 没有空气和水什么都不能生存。
7. With a lot of hard work, he found new ways to help people withT.B.—a disease that damages the lungs.其中to help people with T.B.—a disease that damages the lungs是动词不定式短语用在名词way后作定语。
不定式有时起形容词作用修饰名词或代词，在句中作定语。
冀教版英语九上Unit2《GreatPeople》（Lessons10-12）课文重点整理
冀教版英语九上Unit2《GreatPeople》（Lessons10-12）课文重点整理新冀教版九年级上册Unit2课文重点整理(Lessons 10-12)Unit 2: Great PeopleLesson 10: Touch the World1、hear of ____________________________ at the age of 88______________________have a high fever____________________ be filled with________________________make progress______________________ be famous for________________________try her best to do sth._________________ be greatly missed_____________________the blind / deaf______________________ be a model for_______________________2、 Helen Keller, the well-known writer and educator, died yesterday at the age of 88.先看例句：Zhao Wei, the actress and singer, ______ (be) popular with most young people.在句中，the actress and singer 指的是一个人，演员兼歌手。
解析如下：①“a / the+单数名词+and+单数名词”，指的是同一个人或物，谓语动词用单数形式。
如：那位作家兼老师要来了。
_____________________________________________________②“a / the+单数名词+and+ a / the+单数名词”，指的是两个人或物，谓语动词用复数形式。
九年级英语上册 Unit 2 Great People Lesson 9 China's Most Famous Farmer学案 (新版)冀教版
Lesson 9: China’s Most Famous “Farmer”【学习目标】知识目标：1、词汇和短语:false, peanut, hybrid, variety, introduction, leader, production, produce, super Father of Hybrid Rice, since then, together with2、句型：① In the dream, he grow a new type of rice that was as big as peanut.② The plant allowed farmers to rest in its shade.③ Since then, he has spent much of his time researching and developing newvarieties.④ ..., he succeeded in developing hybrid rice.能力目标：能够谈论伟人们及他们的生活。
能够大胆想象，谈论自己的发明。
情感目标：鼓励自己追求梦想，并为之努力奋斗。
【重点及难点】To use the new words and phrases to talk about great people and their lives and their inventions.【导学过程】一、自主预习（一）预习课文，找出生词并理解。
hybrid___________ variety______________introduction__________ leader_______________production___________ produce_____________super____________（二）核心短语1. 长大 ________________2. 致力于 ___________________3. 在业余时间 ____________4. 拉小提琴 _____________________5. 入睡 ___________________（三）翻译并背诵文中的重点句型:1. In the dream, he grew a new type of rice that was as big as a peanut.___________________________________________2. The plant allowed farmers to rest in its shade._____________________________________________3. In the 1960s, a few years after he finished his studies in agriculture at university, he came up with an idea for hybrid rice.____________________________________________4. In 1973, together with other scientists, he succeeded in developing hybrid rice.__________________________________________________________5. Since then, he has spent much of his time researching and developing new varieties. _________________________________________________________________二、合作探究(一) 听录音读课文回答下列问题：1.Who is Yuan Longping?_____________________________________________2.What did he do in 1973?_______________________________________________3.What does he like to do in his spare time?_________________________________ _4.What is he doing now?_________________________________________________(二) 课文基础学习1. 精读课文，找出疑难点。
冀教版九年级上册Unit 2 Great People Lesson7—Lesson9教材知识详解
Lesson7—Lesson9 教材知识详解1. What is the meaning of life? 生活的意义是什么？meaning n.意思，意义，为可数名词。
the meaning of...……的意思。
Do you know the meaning of this word? 你知道这个单词的意思吗？【拓展】(l) mean为动词，意为“意思是，意味着”，既可作及物动词又可作不及物动词，后接动词作宾语时可用动名词或动词不定式。
mean to do sth意为“打算做某事”；mean doing意味着，常与介词by搭配。
如：This word means “nothing”.这个词的意思是“什么也没有”。
(2)询问某个词或某个句子是什么意思的常用句式：What does... mean?/What is the meaning of...?/What do you mean by...?2. For example, why are great people so successful?例如，为什么伟人那么成功？for example意为“例如”，用来列举同类人或物中的“一个”。
如：Ball games, for example, have spread around the world.例如，球类运动已经在世界各地传播开了。
(1)such as常列举同类人或物中的几个例子，常与and so on连用。
China has many big cities, such as Beijing, Shanghai, Tianjin and so on.中国有许多大城市，比如：北京、上海、天津等等。
(2)for example 一般只列举同类人或物中的“一个”为例，作插入语，用逗号与其他部分隔开，可置于句首、句中或句末。
Noise, for example, is a kind of pollution. 例如，噪音就是一种污染。
冀教版英语九年级全册Unit 2 Great People 重难点知识归纳总结
冀教版英语九年级全册Unit 2 Great People 重难点知识归纳总结【重点单词】1.meaning /'miːnɪŋ/ n. 意义；意思2.dialogue /'daɪəlɒg/ n. 对话；对白3.successful /sək'sesfʊl/ adj. 获得成功的；有成就的4.missing /'mɪsɪŋ/ adj. 缺少的；丢失的5.survey /ˈsəːveɪ/ v. 调查/ˈsɜːveɪ/ n. 调查6.neighbour /'neɪbə/ n. 邻居7.universe /'juːnɪvɜːs/ n. 宇宙；万象8.lifetime /'laɪftaɪm/ n. 一生；终生9.solve /sɒlv/ v. 解决；解答10.theory /'θɪərɪ/ n. 理论；学说11.relativity /relə'tɪvɪtɪ/ n. 相对性12.Switzerland /ˈswɪtsələnd/ n. 瑞士13.pioneer /paɪə'nɪə/ n. 先锋；先驱14.nuclear /'njuːklɪə/ adj. 核能的15.weapon /'wep(ə)n/ n. 武器16.conclusion /kən'kluːʒ(ə)n/ n. 结论17.false /fɔːls/ adj. 错误的；假的18.peanut /'piːnʌt/ n. 花生19.hybrid /'haɪbrɪd/ adj. 杂交的n. 杂交植物（动物）20.variety /və'raɪətɪ/ n. 品种；变化21.introduction /,ɪntrə'dʌkʃ(ə)n/ n. 采用；引进；推行22.leader /'liːdə / n. 领导者；领袖23.production /prə'dʌkʃ(ə)n/ n. 生产，制造；产量24.produce /prəˈdju:s/ v. 生产；出产25.super /'suːpə/ adj. 超级的26.planetary /'plænɪt(ə)rɪ/ adj. 行星的27.writer /'raɪtə/ n. 作家cator /'edʒʊkeɪtə/ n. 教育家；教育工作者29.blind /blaɪnd/ adj. 失明的；瞎的30.deaf /def / adj. 失聪的；聋的31.illness /ˈɪlnəs/ n. 疾病32.ability /əˈbɪlətɪ/ n. 能力33.progress /'prəʊgres/ n. 进展；进步munity /kəˈmju:nətɪ/ n. 社区；社会35.greatly /'greɪtlɪ/ adv. 非常；很36.graduate /ˈɡradʒʊeɪt/ v. 毕业37.remain /rɪ'meɪn/ v. 仍然是；保持不变38.anti- /'æntɪ/ prefix 反；反对39.decision /dɪ'sɪʒ(ə)n/ n. 决定40.aid /eɪd/ n. 帮助；援助41.worst /wə:st/ adj. & adv. (bad或badly的最高级) 最坏的（地）；最糟的（地）42.condition /kən'dɪʃ(ə)n/ n. 环境；条件；状态；状况43.operate /'ɒpəreɪt/ v. 动手术；做手术ernment /ˈgʌvənmənt/ n. 政府45.medical /'medɪk(ə)l/ adj. 医疗的；医学的46.crossword /'krɒswɜːd/ n. 纵横字谜47.puzzle /'pʌz(ə)l/ n. 谜；智力游戏48.based /beɪst/ adj. （以……）为基础；（以……）为依据49.whom /huːm/ pron. （用作动词或介词的宾语）谁50.anybody /'enɪbɒdɪ/ pron. 任何人51.chemistry /'kemɪstrɪ/ n. 化学【重点短语】1.the meaning of... ……的意义2.wonder about 对……感到疑惑3.succeed in 在……方面成功4.try one’s best to do sth 尽某人最大的努力做某事5.live a good and happy life 过一种美好幸福的生活6.be good to sb 对某人友好7.seem like看起来像……8.write ... down 写下……9.go on to do sth 继续做某事10.in the field of 在……领域11.pass away 去世12.give up 放弃13.nuclear weapon 核武器14.stop doing sth 停止做某事15.make a mistake 犯错16.allow sb to do sth 允许某人做某事17.since then 从那时起18.together with 和……一起e up with 提出，想出20.be filled with 充满21.graduate from 从……毕业22.because of 由于23.in one’s spare time在某人的空闲时间24.make a lot of progress 取得很大的进步25.learn to do sth 学会做某事26.make a decision to do sth 决定做某事27.first aid 急救28.set up 建立29.day after day 日复一日【重点句型】1.It seems like something is missing.好像少了点什么。
2018年秋九年级英语上册 Unit 2 Great People整体分析、话题相关链接素材 (新版)冀教版
8．In the 1960s, a few years after he finished his studies in agriculture at university, he came up with an idea for hybrid rice.
16．He also invented tools that remain in use today.
重难分析
1.本单元围绕“著名的人物和他们的生活”这个话题展开交际活动。
2．在交际中学会重点单词和短语的用法。
3．通过短文阅读和练习，学习、巩固before, after和as引导的时间状语从句的用法。
短语归纳
动词短语：try one's best, succeed in, go on to do…，pass away, work on, lose the ability to…，make a lot of progress, remain in use, make a decision, set up
2．定语从句选择关系词的依据：往前要看先行词是指人还是物，往后要看关系词在从句中所充当的成分。如果不清楚关系词究竟充当了从句的什么成分时，可将先行词代入从句进行还原分析。
教材解读
第一课通过Danny发烧来引起学生对健康的思考，第二课通过讲述“自己”治疗牙齿疾病的经历引导学生要关注自己的健康，在生病时不要怕看医生；通过前两课的学习，学生自然会想要了解如何保持健康。第三课介绍了有助于保持身体健康的日常食物；第四课分析了生活中最常见的“吸烟”对身体健康的危害，从而促使学生养成良好的生活习惯；第五课通过讲述一位残疾人的生活引导学生正确对待自己遇到的生理和心理上的困难；第六课对本单元做了一个总结，引导学生如何正确地与别人交流自己的健康问题以及如何对别人表达关心和爱护。
冀教版九年级英语全一册《nit 2 Great People Lesson 11 To China, with Love》赛课导学案_4
第五课时Lesson 11 To China,with Love1.记忆单词Norman Bethune,graduate,Toronto,remain,anti-,decision,aid,worst,condition,operate,government,medical;短语T.B.,remain in use,be well known for…,Anti-Japanese War,make a decision,first aid,dayafter day,set up。
2.掌握重点句型:①He also invented tools that remain in use today.②Norman Bethune is well known for helping the Chinese people in the Anti-Japanese War.③In 1938,he made a decision to go to northern China because he knew many people were dying in the war.④Bethune organized hospitals,taught doctors and nurses,and showed people how to give first aid.⑤People remember how hard he worked day after day in the worst possible conditions to help others.⑥To remember him,the government set up Bethune Medical School and Bethune International Peace Hospital in Shijiazhuang.3.能够运用before,after,as引导的时间状语从句和that引导的定语从句。
冀教版九年级英语上册Unit 2重点单词、短语、句式辨析
义务教育基础课程初中教学资料Unit 2 Great People单词1. meaning作可数名词，意为“意思”，是动词mean的动名词形式起形容词作用。
Can you tell me the meaning of this new word? 你能告诉我这个生词的意思吗？2. successful作形容词，意为“获得成功的、有成就的”，在句中作定语或表语。
This is a successful decision. 这是一个成功的决定。
I think you’ll be successful in the future. 我想将来你会成功的。
success 是不可数名词，意为“成功”；succeed 是不及物动词，意为“成功”。
表示“在??方面成功”用句式be succeeded in?。
Failure is mother of success. 失败是成功之母。
They are succeeded in solving all the problems. 他们成功地解决了所有的问题。
3. solve作及物动词，意为“解答、解决”，后加名词或代词作宾语。
I don’t think I can solve these problems. 我想我不能解决这些问题。
4. pioneer作可数名词，意为“先锋、先驱、带头人”，复数形式是pioneers。
As a technician, he is a remarkable pioneer. 作为技术人员，他是个了不起的先驱。
5. introduction作可数名词，意为“初次投入使用、引进、推进、介绍”，它是动词introduce的名词形式。
The introduction of this new skill brings many changes to us. 这种新技能的引进给我们带来了很多变化。
6. leader作可数名词，意为“领导者、领袖”，它是动词lead 的名词形式，复数形式是leaders。
冀教版九年级英语课本知识点总结
Unit1:stay healthy 一、Key words（重点单词）:1.stomach. n.胃，腹部.2.regret. v. 后悔.3.fever. n. 发烧.4.examination. n. 检查，考试.5.pain. n. 疼痛.6.pardon. v＆n.原谅.7.dentist. n.牙医.8.x-ray. n. X光，x射线.9.refuse. v.拒绝.10.toothache. n. 牙痛.11.German. adj. 德国的；n.德国人，德语.12.corn. n.玉米.13.bean. n.豆子.14. Asia. n. 亚洲. Asian. adj. 亚洲的.Africa. n. 非洲. Africa n. adj. 非洲的.A merica. n. 美洲. American. adj. 美洲的.Europe. n. 欧洲. European. adj. 欧洲的.15.include. v.包括，包含.16.smoke. n＆v.烟，吸烟.17.harmful. adj. 有害的.18. public. adj . 公共的，大众的.w. n. 法律.20.whenever. conj. 无论何时.21.risk. n. 危险，风险.22.somebody. pron. 有人，某人.23.control. v. 控制，管理，支配.24.telephone. n. 电话.25.hers. pron. 她的（物品）.26.cheer.n＆v.欢呼，喝彩.27.kick. v. 踢.28.pity. n.遗憾.29.sleepy. adj.困倦的，瞌睡的.30.mention. v.提及，写到.二、key phrases（重点短语）:1.regret doing sth:后会做了某事.2.get/have a fever.发烧.3.take an x-ray.照x光片.4.go to the dentist.看牙医.5.have no choice but to do sth.别无选择只能去做某事.6.be rich in. 富含......lions of.数以百万的......8.as a result of. 由于，作为......的结果.9.take a risk to do sth.冒险去做某事.10.get into the habit of...养成......的习惯.11.stay away from.. 远离......12.be unable to do sth. 不能去做某事.13.focus on.集中于，致力于.14.take out.取出，拿出.15.so that.为了，以便.三、Grammar(语法).情态动词的用法情态动词：can/could;may/might;should;must;need.1.情动+V原形.eg: He can play football.2.注意情态动词must 的一般疑问句：eg: ---Must I finish my homework now?---Yes,you must.---No,you needn’t./No,you dont’t have to.备注：must not=mustn’t 禁止.四、Writing（写作）.How to stay healthyAs we all know, health is very important to everybody.But do you know how to stay healthy? Here are some useful tips. First, we should do exercise in our free time.For example, we can go to swimin the summer holiday. Doing exercise makes us healthy and strong. Second, we should eat more vegetables and fruits. Stop eating junk food and drinking cola. Third, we should go to bed early and get up early. We should have enough sleep, or we will get sleepy in the day time. If we pay attention to these tips , we will have healthier body. I wish everybody has a strong and healthy body.Unit2:great people一、Key words（重点单词）:1.meaning. n. 意思，意义.2.dialogue. n.对话，对白.3.success. n.成功.success ful. adj. 成功的，有成就的.successfully. adv. 成功地.succeed. v. 取得成功.4.missing. adj.缺少的，丢失的.5.survey. n＆v.调查.6.neighbour. n.邻居.7.solve. v.解决.8.pioneer. n.先锋，先驱.9.introduction. n.介绍，引进.10.leader. n. 领导人，领袖.11.produce.v.生产，出产.12.super. adj. 超级的.13.writer. n. 作者，作家.14.blind. adj .失明的，瞎的.15.deaf. adj.失聪的，聋的.16.illness. n. 疾病.17.ability. n. 能力.18.progress. n.进步，进展.19.remain.v. 仍然是，保持不变.20.decision. n.决定.21.bad---worse---worst . adj.坏的，糟糕的.ernment. n.政府.23.medical. adj.医疗的，医学的.24.anybody. Pron. 任何人.25.chemistry. n.化学.二、key phrases（重点短语）:1.succeed in doing sth.在......取得成功；顺利完成.2.go on doing sth.继续做某事.3.in the field of...在.....领域.4.pass away.去世，逝世.5.since then.自那以后.6.make (a lot of )progress.取得(巨大)进步.7.be well known for=be famous for.因.....而闻名，众所周知.8.make a decision.做一个决定./make decisions.做决定.9.first aid.急救。
2018年秋九年级英语上册Unit2GreatPeople整体分析话题相关链接素材新版冀教版【经典版】.doc
12. Before her illness, Helen was a bright and happy girl.
13．As Helen grew older, she made a lot of progress and learned to read.
China's keystone space scientist Qian Xuesen, widely acclaimed as the country's “father of space technology” and “king of rocketry”，died in Beijing on Oct. 31, 2009 from illness at the age of 98.
2．定语从句选择关系词的依据：往前要看先行词是指人还是物，往后要看关系词在从句中所充当的成分。如果不清楚关系词究竟充当了从句的什么成分时，可将先行词代入从句进行还原分析。
教材解读
第一课通过Danny发烧来引起学生对健康的思考，第二课通过讲述“自己”治疗牙齿疾病的经历引导学生要关注自己的健康，在生病时不要怕看医生；通过前两课的学习，学生自然会想要了解如何保持健康。第三课介绍了有助于保持身体健康的日常食物；第四课分析了生活中最常见的“吸烟”对身体健康的危害，从而促使学生养成良好的生活习惯；第五课通过讲述一位残疾人的生活引导学生正确对待自己遇到的生理和心理上的困难；第六课对本单元做了一个总结，引导学生如何正确地与别人交流自己的健康问题以及如何对别人表达关心和爱护。
4．After he finished school, he went on to study physics in Switzerland.
九年级英语上册 Unit 2 Great People语法聚焦二 (新版)冀教版
Unit 2 Great People[before, after和as引导的时间状语从句&that和who引导的定语从句]1. After he finished school, he went on to study physics in Switzerland.毕业后他去瑞士继续研究物理学。
2. He signed his last letter before he passed away.在去世之前，他签署了他的最后一封信。
3. As Helen grew older, she made a lot of progress and learned to read. 随着年龄的增长，海伦取得了很大进步并学会了阅读。
4. Anyone who has never made a mistake has never tried anything new. 一个从不犯错误的人，一定从来没有尝试过任何新鲜事物。
5. In the dream, he grew a new type of rice that was as big as a peanut.在梦里，他种植了一种像花生一样大的新型水稻。
一、before, after 和as 引导的时间状语从句1．before, after和as都可以引导时间状语从句。
before意为“________________”；after意为“________________”； as 除了表示“随着……”，还可以表示“正当……时”和“一边……一边……”。
The students were talking as the teacher came in.当老师进来时学生们正在说话。
We always sing as we walk.我们总是边走边唱。
2．当时间是将来的时候， before, after和as引导的时间状语从句常用________时态，而主句要用________时态。