Unit 5 Look into Science
Lesson 25: Let’s Do an Experiment!
I. Learning aims:
2011年12月17日Master the new words:
日堙月塞experiment, jar, upside, pour, correct, scientific, method, raincoat, force, pressure, conclude afl
II. Learning important and difficult points:
1) I cover the top with a piece of cardboard and hold it there.
2) I am so sure of my theory that Brian can do the experiment over your head and I know you won’t get wet.
3) The force of the air keeps the water in the jar.
4) It is strong enough to hold the water.
Language Points:
1. I cover the top with a piece of cardboard and hold it there. 我用纸板把上面盖住然后托住它。
【用法】 句式 cover…with…意为“用……覆盖……”，类似句式be covered with 表示“被……覆盖”，这是一个系表结构。
【举例】My mother covered the table with cloth. 我妈妈用布把桌子盖住了。The bed is covered with paper. 床上盖满了纸。
2. I am so sure of my theory that Brian can do the experiment over your head and I know you won’t get wet. 我对布莱恩在你头上做实验的理论很有把握，并且你不会湿的。
【用法】这句话中的句式be sure of意为“对……有把握”；that Brian can do the experiment over your head是定语从句，修饰前面的名词theory。
【举例】Are you sure of this matter? 你对这件事情有把握吗？ This is the book that I borrowed from the library. 这是我从图书馆借的书。
3. It is strong enough to hold the water. 它力量很大足以把水托住。hungry
【用法】句中的enough to do…意为“足以……做某事”，这里的enough起副词作用，用在形容词或副词后作状语。
【举例】Allan is old enough to go to work. 艾伦到上班年龄了。
Lesson 26: Keep the Candle Burning
I. Learning aims:
打电话给我的英文Master the new words:
holder, shallow, lighter, match, examine, oxygen
II. Learning important and difficult points:
1) Let the candle burn for two or three minutes.model是什么意思
2）When the candle stops burning, it has ud up all the oxygen in the air.
3）How far does it ri?
acne
4) Becau about one fifth of the air is made up of oxygen, the water ris and fills about one fifth of the jar.
Language Points:
申请大学留学词汇详解
desso
1. When the candle stops burning, it has ud up all the oxygen in the air. 当蜡烛停止燃烧时，它就用完了空气中所有的氧气了。
【用法】u up意思是“用完、用光”，这是“动词 + 副词”短语。这类短语用名词作宾语时，名词可用在副词前，也可用在副词后；用代词作宾语时，代词则必须用在副词前。
【举例】I gave Li Ming a lot of pencils, but he has ud them up already. 我给了李明很多铅笔，但他已经把它们都用完了。
2. Becau about one fifth of the air is made up of oxygen, the water ris and fills about one fifth of the jar. 因为组成空气的成分大约五分之一是氧气，所以水会上升并且填充瓶子的大约五分之一。
【用法】短语be made up of意为“由……组成”，后加名词或代词作介词宾语。
【举例】This grade is made up of ten class. 这个年级是由十个班组成的。
伦敦奥运会时间【用法】句中的one-fifth意思是“五分之一”，这是一个分数。分数的表达一般遵循以下规则：
分子用基数词，分母用序数词；当分子大于一时，分母要用复数形式；并且其中的连字符号有时可以不要。
【举例】one-fourth 四分之一 three fifths 五分之三
Lesson 27: Planet Danny
