1、Lesson 30: Science Affects UsI. Learning aims:Master the new words: affect, suggest, mobile phone, discovery, amazing II. Learning important and difficult points: 1) First, get a jar full of water and a piece of cardboard.2) The higher air pressure outside the jar holds the cardboard in place.3) The
2、 experiment you did sounds interesting.4) Scientific discoveries are making our lives better and better.Language Points:词汇详解1. suggest【用法】作及物动词，意为“建议、暗示”，后加名词、代词、动名词作宾语；也可用在句式suggest somebody to do something 这一句式中，表示“建议某人做某事”。【举例】They suggested building a new school. 他们建议建一所新学校。I suggest you to do l
3、ike me. 我建议你想我一样这么做。His report suggested the huge loss. 他的报告暗示了巨大的损失。【拓展】suggestion 是它的名词形式，意为“建议”，作可数名词，复数形式是suggestions。【举例】They gave some useful suggestions at the meeting. 在会议上他们给我们提出了一些有用的建议。【应用】用括号中所给词语的适当形式填空。Nobody _（建议）repairing the machine by ourselves, so we had to have it repaired.答案：sug
4、gested。表示“建议”用动词suggest，且这里是一般过去时。2. discovery【用法】作可数名词，意为“发现、发觉”，复数形式是discoveries。【举例】This is an important discovery. We should pay more attention to it. 这是一个重要的发现。我们必须注意它。【拓展】discover是及物动词，意为“发现”，后加名词、代词或宾语从句。【举例】We have discovered their secrets. 我们已经发现了他们的秘密。【应用】用括号中所给词语的适当形式填空。Have you noticed t
5、hose _ (discover)? They are helpful to us.答案：discoveries。表示“发现”用名词discovery，且这里用复数形式。语句详解1. First, get a jar full of water and a piece of cardboard. 首先，取满满一罐子水和一张硬纸片。【用法】句中的短语full of water用在名词jar之后作定语，不定式、介词短语、副词和定语从句都可用在名词后作定语。【举例】I have a lot of work to do. 我有很多要做的工作。（不定式在名词后作定语）The eraser on the
6、desk is Marys. 书桌上的橡皮是玛丽的。（介词短语在名词后作定语）Did you meet John on your way home? 你在回家的路上遇见约翰了吗？（副词在名词后作定语）This is the pen that Im looking for. 这就是我正在找的笔。（定语从句在名词后作定语）【2. Scientific discoveries are making our lives better and better. 一些科学发现使我们的生活变得越来越美好。【用法】“比较级 + and + 比较级”表示“越来越”。【举例】My sister is growing taller and taller. 我妹妹长得越来越高。Our city is becoming more and more beautiful. 我们的城市变得越来越美了。
