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1、教 案题目（教学章节或主题）：Unit 15授课日期：2014年3月9号 周日授课时间：10:00-12:00教学重点、难点：复习基本的时态（一般现在时，现在进行时，现在完成时、被动语态及一般过 去时used to+动词原形的用法 ）重要性：典型例题： 1. We should try _ best to save the manatee. A. us B. our C. ourselves D. your2. The secret _ by your father last night.A. discovered B. discovering C. was discovered D. was
2、 discovering3. Ive worked in this school _ twenty years.A. sinceB. forC. afterD. When4. Mary _ to school by bike when she lived in China.A. used to goB. was used to goC. was used goingD. used to go5总结：本次教学评价：非常满意 较满意 一般 家长或学生签字 共 小时本节课回访记录：任课老师签字： 主任签字： 日期：讲 义学生：罗淦 任课教师：李莉教学过程：Unit 15 We are trying
3、to save the manatees1. GrammarStructures Tenses Were trying to save the manateesPresent progressive Manatees eat about 100 pounds of food a day Present SimpleThere used to be a lot of manateesPast tenseused to+ infinitiveIn 1972, it was discovered that they were endangeredPassive voice Some of the s
4、wamps have become pollutedPresent perfect 时态知识点小结：时 态谓语动词的形式 （do/be）一般现在时do / does am/ is /are一般过去时did/was /were现在进行时be (am / is / are) doing现在完成时have / has done一般过去时被动语态was / were done现在完成时被动语态have / has been done2. We are trying to save the manatee. 我们在尽力挽救海牛。 (1).本句的时态是现在进行时，表示现阶段正在做的事情。现在进行时所表示的
5、动作并不一定在说话的时刻进行，而是在包括说话时刻在内的一段时间当中进行。例如：My mother is writing a novel now. 我妈妈目前在写小说。 (2).动词短语try to do sth. 的意思是“尽力做某事”，实际做与不做视情况而定；try doing sth. 表示“试着做某事”，即动作真的进行了或者正在进行。例如：He tried to read more, but it was too dark to read. 他想要多看会书，但是天太黑了以至于不能看了。【例题】They are trying _ the child but they fail at las
6、t.A. save B. to save C. saved D. saves3. save v挽救；营救 save ones life 救的命E.g.: It was too late to save the boy and he died男孩未获得及时抢救，所以死了。He has already saved a lot of land他已挽救了大片的土地。【拓展】(1).节省，节约 E.g.: We can save time and money by shopping at supermarket. 我们到超市购物可以节省时间和金钱。All the students must save w
7、ater. 全体学生必须节约用水。 (2).储蓄，贮存E.g.: We should save some money for travelling. 我们应该攒一些钱去旅游。 save ones face 保全面子 save the situation 挽回形势 save up 储蓄，贮存例题：They the old man the fire yesterday Asave；from Bsaves；toCsaved；fromDsaved；through4. I am like this animal because I am strong and intelligent. 我像这种动物，因为
8、我强壮而且聪明。(1).句子的like是介词，它的意思是“像”，它和一些连系动词be，look和seem等连用构成动词短语表示“长得像、看起来像、似乎好像”的意思。例如：It looks like my cat. 它看起来像我的猫。(2). like的前面可以用very, much，rather，quite等修饰表示“很像、非常像、相当像、十分像”的意思。例如：You look very much like your father. 你看上去非常像你的爸爸。【例题】The boy _ his mother, not only tall but also thin.A. likes B. lik
9、e C. look like D. looks like5. How big are manatees? 海牛有多大？ how big. 询问体重。以how组合的疑问词组有很多E.g.: how old 询问年龄； how often询问频率 how long询问动作持续的长短； how much询问质量或者价钱how far 询问距离； how many询问数量 how soon 询问过多久例题：How often do you _ yourself? Once a month.A. weigh B. weighing C. to weighD. weight6. There used to
10、 be a lot of manatees. 过去有许多海牛。句型there used to be是there be的中间加动词短语used to表示“过去曾经有而现在没有”的意思。There be的中间可以加will表示将来有；加情态动词may/can/must表示“可能有、一定有”的意思。例如：There used to be a tall building in front of our school. 在我们的学校前面曾经有一座大楼。【例题】There _ be an English party tomorrow. Would you like to go with me?A. can
11、 B. may C used to D. will7. I have visited a lot of zoos in my life, and I have never seen one I liked or one that was suitable for animals to live in. 我一生中参观过许多动物园，我从未见过一个我喜欢的或者适合动物住的。(1).连词and引导的是并列句，第一个句子是现在完成时I have visited a lot of zoos in my life；第二个句子中的动词seen后面用两个宾语one。第一个one有定语从句I liked 修饰，第
12、二个one有that引导的定语从句修饰。(2).动词短语be suitable for somebody to do的意思是“适合某人做某事”，句子后面的to live in中的in不能省略。【考例】There is not enough space for everyone _.A. to stand on B. to stand C. standing on D. standing【答案与解析】答案是A。本句子是考查动词不定式的用法，for everyone to stand on中的介词on不能省略，因为它带有逻辑宾语，即前面的名词space，去掉on就成了stand a place，应
13、该是stand on a place。8. They are like living textbooks for young people. 它们就像年轻人的活教科书。(1).句子的living是现在分词作形容词用，它的意思是“活着的、使用中的”。例如：She has no living relatives. 她没有活着的亲人了。(2).living还可以作名词用，它的意思是“生计”。例如：She earns a living as a writer. 她靠写作维持生计。【考例】They want to buy some _ fish to offer the guests. A. livin
14、g B. lived C. died D. dying【答案与解析】答案是A。本句子是用形容词living修饰后面的名词fish表示“活着的鱼”，从句子的意思可以判断是用living。9. They provide homes for many endangered animals，and help to educate the public about caring for them. 他们为许多濒临灭绝的动物提供住所，并教育人们应该很好地照顾好它们。(1).动词provide的意思是“提供、供应”，它可以构成动词短语provide something for somebody和provide somebody with something。例如：They provide some drinking water for us. 他们为我们提供一些饮用水。 They provide us with some useful informat
