1、Book 5 Unit 1 Great Scientists Period 4 Learning about language 编者：王海虹 修编：李慧学习目标1.熟练掌握 contribute 的用法并能用所学句型造句。 2. 学习并掌握过去分词作定语和表语的语法知识。自主合作探究 11.contribute vt.& vi.捐献；贡献；捐助；导致；投稿；发表意见【品味经典】1）Many people contributed money to the poor boy，which contributed to his returning to school.许多人给那个可怜的男孩捐款，使他可
2、以重返校园。2）A writer wrote a story about this and contributed it to a newspaper.一位作家写了一篇关于此事的故事并把它投稿到一家报社。【归纳拓展】contribute.to.把贡献给 contribute to 促进；有助于；发表意见contribution n捐献；贡献；捐助 make a contribution to doing sth.对做贡献【语境活用】完成句子1) Many warmhearted people _.为那个生病的女孩捐献了一些钱。2) _.她给这家杂志撰写了一些稿件。3) _. 新鲜空气和锻炼有益
3、于健康。过去分词作定语和表语自主合作探究 2 观察下列从 Reading 中选取的句子，注意它们在语法形式和语意上的不同。But he became inspired when he thought about helping ordinary people exposed to cholera.So many thousands of terrified people died every time there was an outbreak.He became interested in two theories that possibly explained how cholera ki
4、lled people.From the stomach the disease quickly attacked the body and soon the affected person died.He found that it came from the river polluted by the dirty water from London.以上画线部分作定语的有_；作表语的有_。1. 过去分词的构成规则动词的过去分词是在动词词尾加ed，不规则动词的过去分词有不规则的变化，如 knowknown，keep kept，fallfallen 等，这些不规则变化需要单独记忆。2过去分词作
5、定语的功能1) 表“ 被动”或“完成” 。boiled water 开水 fallen leaves 落叶 the risen sun 升起的太阳 cooked food 熟食 2) 单个的过去分词作定语时，一般放在被修饰词语之前( 如上例)，也可以放在所修饰词语的后面。但过去分词修饰something，anyone，everything，nobody 等不定代词时，应放在其后。 There is nobody injured in the accident. 这场事故中没有人受伤。3) 过去分词短语作定语时，须将分词放在被修饰的词语之后，功能相当于一个定语从句。Near the window
6、，there is a bookshelf filled with books(which is filled with many books)靠近窗户，有一个装满书的书架。Her daughter，brought up by me(who was brought up by me)，has begun to work now.她的女儿由我带大的，现在已经开始工作了。3过去分词作表语的功能1) 当“ 人”作主语时用过去分词作表语表示主语的“状态或思想感情”等。When we heard of it，we were deeply moved. 当听到这件事时，我们被深深地感动了。He seeme
7、d quite delighted at the idea. 听到这个想法，他似乎很高兴。2) 过去分词作表语不要与被动语态混为一体。过去分词作表语表示主语的“状态” ，而被动语态则表示被动的“动作” 。My glasses are broken. 我的眼镜碎了。(状态)My glasses were broken by my son. 我的眼镜被我儿子摔碎了。(动作)4现在分词和过去分词作定语的区别1) 语态上不同：现在分词表示主动意义，过去分词多表示被动意义。surprising news 使人吃惊的消息 surprised listeners 吃惊的听众2) 时间关系上不同：现在分词表示
8、正在进行的动作，而过去分词表示已经完成的动作。the developing country 发展中国家 the developed country 发达国家5现在分词和过去分词作表语的区别现在分词作表语，表示的动作与句子的主语构成逻辑上的主谓关系；而过去分词作表语，其动作与句子的主语构成逻辑上的动宾关系。The news was exciting and we were all excited. 消息令人兴奋，我们都很激动。达标练习 用所给词的适当形式填空1. I am a little _(amuse) at the description they gave me, which are v
9、ery fun.2. You cannot accept an opinion _ (offer) to you unless it is based on facts. 3. It is one of the funniest things _on the Internet so far this year. (find)4. The airport _ (compete) next year will help promote tourism in this area. 5. It is difficult for us _(draw) a conclusion without enoug
10、h evidence. 6. Your suggestion _(put) forward at the meeting is under discussion. 7. As nobody here knows what is wrong with the machine, we must send for an engineer _(handle) the problem.8. The trees _ in the storm have been moved off the road. (blow down)9. Can those _ at the back of the classroom hear me？(seat)10. Can those _ at the back of the classroom hear me?(sit)11. The girl_ (wear) a white skirt is my daughter.12. He is a teacher_(admire) by his students.
