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1、-人教版高中英语必修二学案：Unit 4 Wildlife protection Period 4 Language points and grammar-第 4 页Book 2 Unit 4 Wildlife protection Period 4 Language points and grammar 编者：李兴兵 修编：毛彦芳导学目标1.熟记学案中所列出的单词和短语: employ, harm, 并熟练运用造句。2.学习现在进行时的被动语态的基本结构I. 自主学习1. employ vt.雇用；利用(时间、精力等)品味典例：Can they be employed to work in
2、the park and not hurt the animals？(P27)可以雇用他们在公园工作而不伤害动物吗？The manager employed himself in making a future plan for his company.经理忙于为公司制订将来的计划。归纳拓展：employ sb.as.雇用某人任 employ sb. to do sth.雇用某人做某事be employed in doing sth./ employ oneself in doing sth 忙于；从事于做某事employer n雇主 employee n雇员；受雇者 employment n
3、职业；工作；使用小试牛刀： 用employ的适当形式填空 Our company _ about one hundred people.Their situations are now changedthe employee has become the_.3).He was employed in . 他忙于浇灌花园。2. harm n& vt.损害；危害品味典例：What should be done to punish people who do harm to the animals？对于那些伤害动物的人该怎么惩罚？归纳拓展： harmful adj.有害的 harmless adj.
4、无害的 do harm to sb=do sb harm伤害某人=be harmful to sb/sth小试牛刀： What he said _(对你没有害处)2).Modern farming method _ the countryside.现代的耕作方式对乡村造成了很大的损害。3. After a while she saw some zebra with_black_and_white_lines_going_beneath_their_stomachs. (P28)过了一会儿她看到了一些斑马，它们身上有一直延伸到腹部的黑白相间的条纹。With the meal over，we al
5、l went home. 吃完了饭，我们都回家了。She came to a river with green grass and red flowers on both sides.她来到了河边，河的两岸长着红花绿草。A little boy with two of his front teeth missing ran into the house. 一个掉了两颗门牙的小男孩跑进了房子里。With the key lost，he had to wait outside the door. 由于钥匙丢了，他只好在门外等。小试牛刀： 用所给词的适当形式填空 With a lot of diff
6、icult problems _(settle)，the new president is very busy all day long. With his mother _(help)him，he is getting along well with his work.合作探究: Grammar观察下列Reading中的句子，体会现在进行时的用法。 Now the farmers are happy and our numbers are_increasing. We are_being_killed for the wool beneath our stomachs. Our fur is
7、_being_used to make sweaters for people like you. I wonder what_is_being_done to help you. So good things are_being_done here to save local wildlife.自我总结(1)例句使用的是现在进行时，谓语动词的构成为_。(2)例句使用的是现在进行时的被动语态，谓语动词的构成为_-_。(3)观察以上例句可知，当把现在进行时主动语态的句子变为被动语态时，在be动词后加上一个_来体现现在进行时，然后再把动词的现在分词形式变成_来表示被动。 现在进行时的被动语态一、现
8、在进行时的被动语态的几种结构形式肯定结构be (am/is/are) being done否定结构be (am/is/are)notbeing done一般疑问结构be (am/is/are)主语being done特殊疑问结构特殊疑问词be (am/is/are)主语being done品味典例：The plan is being carried out this month. (肯定句)计划本月正在执行。Your computer is not being repaired now. (否定句)现在没人修理你的电脑。Are these fields being watered this w
9、eek？(一般疑问句)这周有人在给这些地浇水吗？Where are you being interviewed now？(特殊疑问句)现在你们在哪里接受面试？二、现在进行时的被动语态的用法1表示此时此刻正在进行的被动动作。My sister is now being interviewed. 我妹妹正在面试。Rainforestsarebeingcutandburnedat suchaspeedthattheywilldisappearfromtheearthinthenearfuture.热带雨林被砍、烧得这么快,他们将在不久的将来从地球上消失。Manyinterestingexperime
10、ntsarebeing carriedoutthesedays.最近正在进行许多有趣的实验。 2表示现阶段正在进行的被动动作(该动作在说话的瞬间未必正在进行)Many interesting experiments are being carried out these days. 如今许多有趣的实验正在进行着.3表示一种经常性的被动行为，常和always，constantly 等表示频度的副词连用，这种用法常常带有赞扬或厌恶的感情色彩。He is always being praised by the leader. 他总是受到领导的表扬。4有时可表示按计划或安排将要进行的一个被动动作。A
11、party is being held tonight. 今晚将要举行一场晚会。ItissaidthataplaneisbeingflownbyhimtoAmericaateightnextSundaymorning.据说下周日早上八点他将开飞机去美国。三、使用现在进行时的被动语态要注意的问题1不可漏掉being，若漏掉，则成为一般现在时的被动语态或系表结构。Thereportisbeingwrittenbyoneofthebeststudents.报告正在由一个最好的学生写着。Thereportiswellwritten.报告写得很好。(系表结构) 2可与部分情态动词连用，表示对正在发生的事
12、情的推测。She may be being punished by her mother. 她也许正被母亲惩罚着。3某些表示“状态、心理活动、存在”等的动词，如have，want，need，love，一般不用现在进行时的被动语态，而常用一般现在时的被动语态。With the population increasing，more land is needed. 随着人口的增长，需要更多的土地。XiaoWang,comehere.Youarewantedonthephone. 小王,过来,有你的电话。4在某些 “介词+名词”的短语也可以表示正在进行着的被动,常见的这些介词有: on, under,
13、 inMany new cars are on show.= Many new cars are being showed. 很多新车正在被展览。My computer is under repair.My computer is being repaired. 我的电脑正在维修中。Thecityisunderattack(isbeingattacked)atthemoment. 目前这个城市正受到进攻。Thebridgeisunderconstruction=Thebridge isbeingconstructed. 桥梁正在建筑中。Theproblemisunderdiscussion(=
14、isbeingdiscussed)atthemeeting. 问题正在会上讨论。Thetelephoneisinuse(=isbeingused)now. 电话正在使用中 达标检测1. He _(employ) in writing a new book these days.2. Some chemicals _(对有害)to the environment.3.John received an invitation to dinner，and with his work_(finish)，he gladly accepted it.4. I dont know what time it is now. My watch _(正在修) 5. A new stadium _(正在建)here. They hope to finish it next week.6. The patient _（正在检查） now. He will come out soon.
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