1、New words and expressions1.学生能够了解本单元单词的基本用法。2.学生能够辨析易混淆词的用法，并能熟练运用。3.学生能够掌握重点难点词的拓展及其用法。4.学生能够用所学单词翻译或造出句子，提升自己的句子表达和写作水平。本节课为unit4 的单词和短语教学，单词本来是零散的，易混的，但是本节课运用了从点到线，从线到面的词汇教学方法，使重点难点单词成了容易掌握的单词块，单词串，从而实现了知识即词汇的重新组合，这一点也符合新的英语教学大纲的要求。首先，用听本单元的单词录音进行导入，让学生从整体上感知下单词。然后，对重点单词进行讲解，既有对单词用法的拓展，又有对短语释义的延伸
2、。讲解和巩固练习结合，让学生加深理解词汇用法并当堂掌握。Words and expressions1.the other day 不久前一天all day long=all day 整天,终日,一天到晚 dog days 三伏天,闷热天 every other day 每隔一天,每两天 have a day off 休假一天one day/some day 有一天,某一天,总有一天 day after day 一天又一天地,日复一日地 day and night 日日夜夜地day by day 逐日地,一天天地 2.relevant (adj)relevantly(adv)“有关的，有实际价值
3、(重要性)的”反义词：irrelevant这种工作与经验无关。The work of this kind is not relevant to experience.这类课程与当今的社会问题的关系 而论已毫无实际价值。The type of the course is no longer relevant to todays social problem.be relevant to=have sth.to do with 与有关relevance n.关联；相关性have relevance to 与有关have no relevance to=have nothing to do with
4、与无关 Topicsforcompositionsshouldbe_totheexperiences and interests of the students.A.concernedB.DependentC.concerningD.relevant【解析】选D。句意为：作文的题目应与学生的经历和兴趣有关。be relevant to与有关。而concerning 是介词，相当于about,后面不加to。D3.remotea remote relative 远亲a question remote from the subject 与本主题不相干 的问题be remote and cold in
5、 ones manner 态度冷淡a remote possibility 极小的可能性4.adjust小屋内很黑，因此，眼睛要过好一阵才能适应过来。adjust vt&vi.调整；（使）适合adjust to sth./doing sth.适应(做)某事adjust oneself to sth.使某人（自己）适应某事adjustable adj.可调整的；可调节的adjustment n.调整；调解；（思想、行为的）调整，适应make adjustments to 对作出调整5.participate vi.参加 参与1)participate in sth.a.他没有参加讨论。He di
6、dnt participate in the discussion.b.Adults develop the confidence to participate in the social,economic and political lives of their communities.成年人在他们的社会生活中增强参与社会、经济和政治的自信心。c.希望全班同学参与这项活动。All the students _ _ _are expected to_in the activity.in our classparticipate2)participation n.参加 参与This is a s
7、how with lots of audience participation.这是一次观众热烈参与的演出。3)compare“参加”：participate in,attend,join,take part in与join in?participate in正式用语，表参加，参与。强调与他人共同参 加某一活动，暗示以一种积极的态度参加。attend正式用语，一般用于指参加会议，出席典礼或招待会等，也可以指上学，听课，听演讲或讲座等。join常用词，作及物动词；通常指参加某组织或团体，并成为其中的一员，其宾语往往是the army/party/team/club 或sb.等。take part
8、 in指参加群众性的活动，侧重说明主语参加该项活动并在其中发挥一定的作用。part 前若有修饰语，要用不定冠词。如take(an active)part inschool/activities。join in参加正在进行的活动，其宾语一般是竞赛、娱乐、谈话、讨论、聚会、游戏等名词，可以用于join in(doing)sth./join sb.in(doing)sth.结构中。选用所给单词或短语的适当形式填空join;join in;take part in;attend;participate inThey all _ the plot.At the age of eight,he _ a g
9、roup of child dancers.The children _ the English Evening and had agood time.He didnt _ school yesterday because of his illness.Zhou Enlai _ the student movements activelywhen he was at school.participated injoinedjoined inattendtook part inHe told me that the can was heated to_(2)Water the plant reg
10、ularly,never letting_(让土壤干枯)6.dry out(使)变干;干透(1)他告诉我加热罐子是为了使剩余的食物变干。dry out the leftover food.the soil dry out7.dry up(河流，湖泊等)干枯；弄干、晒干、变干;(供应、思路)枯竭(1)During the drought,the river dried up.(2)The writers long separation from social dried up his imagination.(3)太阳很快就会把马路晒干的。_The sun will soon dry up th
11、e roads.8.otherwise (adv.conj.)“用别的方法,其他方面;否则,不然(or)”He is slow,but otherwise he is a good worker.Seize the chance,otherwise(or)you will regret it.祈使句,and(or,otherwise)+简单句(简单句常用将来时)1)Hurry up,_ you will be late.A.and B.otherwise C.if D.unless2)Study hard,_ you will pass the exam.A.and B.or C.if D.u
12、nless 3)Study hard,_ you will not pass the exam.A.and B.otherwise C.if D.unlessBAB9.donatedonate v.捐赠，赠送donate sth.to sb.向某物捐赠某人donation n.捐赠；捐赠物；捐款donator n.捐赠者make/give/present a donation to sb.捐赠给某人send a donation to 把捐款寄至promise a donation 应允捐赠He _ _ _ _(捐赠)a million to theschool.The rest of the
13、 money we get is _ _(来自捐赠)made a donation offrom donations10.in need 在困难中,在危急中句意理解:A friend in need is a friend indeed.患难朋友才是真朋友.(1)我们应该帮助有困难的人.We should help those in need.(2)他现在很需要一大笔钱.He now is in great need of much money.11.purchase 1)vt.购买 采购；努力取得a.他把两年前买的那幢房子卖了。He sold the house he had purchas
14、ed two years before.b.They purchased life at the expense of honour.他们以牺牲名誉为代价换得了生命。2)n.购买 购得物如果你对所购之物不满意，我们将全额退款。If you are not satisfied with your purchase,well give you a full refund.返回make a purchase 买东西return ones purchase 退货a good purchase 便宜货acquire sth by purchase 买得某物提示：purchase要比buy正式12.sec
15、urity n.安全 保障1)the Security Council（联合国）安全理事会2)出于安全的考虑须对旅客进行搜身。For _ reasons the passengers have to_ _.securitybe searched返回13.operate (vtvi)vi 工作，运转,动手术（on)Some people can only operate well under pressure.The famous doctor has operated on many important people.vt 操作What skills are needed to operate
16、 this machine.operation n.操纵，经营，手术operator n.接线员，操作人员，手术员operate on 给动手术perform an operation on 给实施手术In operation 工作中，使用中，有效come into operation 开始工作，开始有效put sth into operation 实施，启用使运转 She will have to _ on for her cancer.He and the other doctors didnt leave until the _ was over.He will perform an operation _her for a diseased lung.be operatedoperationon