unit4 inventions reading阅读知识点.ppt

* Which invention do you think is the greatest invention? do you think 作为特殊疑问句中的插入语，用来征询对方的意见或看法。若疑问词做主语，do you think 要放在疑问词之后，谓语动词之前。如： 你认为要把英语学好我们应该做得最重要的事情是什么？ What do you think is the most important thing for us to do to learn English well? They help people live a better life. live a/an …life 过着……的生活 过着开心的生活：live a life 过着贫穷的生活：live a ____ life live v. life n. lives lively adj.活跃的 help sb. (to) do sth.帮助某人做某事 = help sb. with sth.在某方面帮助某人 李萍帮助我学习英语。 Li Ping helps me learn English. = Li Ping helps me with my English. Travelling became faster and more comfortable. Travelling动名词短语作主语时，谓语动词用单数形式。 收集电脑游戏是浪费时间。 Collecting computer games is a waste of time. 收集邮票是具有教育意义的。 Collecting stamps is educational! A few thousand years ago, people started to use wheels on carriage. A few=several几个 A few;few;a little;little区别 only a few;only a little;just a few;just a little start to do sth.=begin to do sth.开始做某事 At the start of the 20th century, cars became popular.在二十世纪初， 汽车变得流行起来。 at the start of 在。。。开始 =at the beginning of at the end of 在。。。结束的时候 in the end=at last=finally=lastly最后 在开始上课的时候，老师给我们唱了英文歌 At the start of the class, our teacher sang an English for us. Without the wheel, we would not have these inventions. without prep. 没有 without+名词/名词短语可改写为if 引导的条件状语从句 虚拟语气=If we didn’t have wheels 没有空气，我们会死。 Without air, we will die. =If there is no air, we will die. Alexander Graham Bell invented one of the first practical telephones in 1876. 亚历山大·格拉汉姆·贝尔 在1876年发明了最实用的电话之一. invent v. 发明 invention n. 发明 inventor n. 发明家 invent 与 discover的区别 invent 指发明原来不存在的东西。discover 指发现原来就存在但是一直不被认识的东西。 爱迪生发明了电灯。 Edison ___________ the electric light bulb. 我在树下发现了一块很漂亮的石头。 I a beautiful stone under the tree. one of the first +复数名词 one of+the+形容词最高级+名词复数 最…的之一 他是在这场游戏中最先赢了的人之一。 He was one of the first winners in this game. 上海是中国最大的城市之一。 Shanghai is one of the biggest cities in China. Mary is one of