外研社必修一第五单元PPT

• two million • five million, one hundred thousand • twelve million, two hundred and sixtynine thousand • fifty-two million, four hundred and seventy thousand, three hundred and eightythree • one thousand million/one billion
Module 5
翻译以下短语和句子 • • • • • •
a piece of equipment 一件电器 react to sth./in reaction to sth 对…作出反应 气体在加热时膨胀。 (用状语从句的省略) Gas will expand while heated. I went abroad with the aim of studying English. 我出国为了学英语。 (aim) Aiming to go to university, he did a part time job. 为了上大学，他做了兼职工作。 (aim) 政府通过了一项旨在保护环境的法律。 (aim) The government passed a law aimed at protecting the environment.
1. The earth is forty-nine times larger than the moon . 2. The more books I read, the more information I learn. 上面两个句子中重点强调的是比较级。 这一语法现象我们在初中已学过,现在 我们对这一语法进行总结。
What can you see?
I can see a lab in the picture. What apparatus can we see in a lab?
Look at the pictures. Do you know the name of these equipment/apparatus？
分数表达法 • • • • • • • • 1/5 • one fifth 1/4 • a quarter 1/3 • one third 4/5 • four fifths 3/4 • three quarters 1/2 • a half 2/3 • two thirds 口诀：分子基数词，分母序数词，分子大于1 ，分母加S， 分母若是“2”和“4”， “half”,“quarter”来代替。
It’s interesting to do an experiment. But we’ve got a lot of things to do before an experiment. First, we should be clear the aim of the experiment, the apparatus we need and how we can carry it out (we call it “method”).We watch what’s happening and get the result. Lastly it is important to have a discussion on the result of the experiment. Don’t forget to write down the conclusion.
common to see couples who dress • It’s quite _______ alike. • Now electrical appliances have entered ordinary family. _______ • His temperature was two degrees normal above_______. usual seat. • In the restaurant, he sat on the ______ normal • Everything returns to _______.
想像
think的相关短语
• • • • • • think highly/much/well of ...对……评价很高 think poorly/little/ill of ... 对……评价不高 think of ...as ... 把……看做…… think nothing of 不把……当回事 think about 考虑，思考 think over 仔细考虑
test tube
tongs
balance
crucible
beaker & glass rod
Bunsen burner
test tube test tube holder
tongs balance
Bunsen burner
cruciblebea来自erglass rod
Do you know how we can carry out an experiment successfully?
• ①It made me think of something I saw Monday night on TV. 想起 • ②She’s thinking of changing her job. 考虑 • ③What do you think of your English 认为 teacher？ • ④You can think of what the city will be in twenty years.
for example/such as
• for example 通常举一个例子，其位置比较 灵活，可置于句首，句中或句末，通常用 逗号与句子其他部分隔开。 • such as 用来不完全列举，常列举三四个， 放在被列举的事物之前 • Some students, _________, for example live in the neighborhood. such as • He knows several languages, _______ English, French and German.
order<n.>顺序，秩序，条理，状况 • put…in order 把…按顺序排列 • in order 井井有条/状况好 • out of order 杂乱无章/出故障 • <v.>1）点菜,订货 What would you want to order? 下一个…订单 place an order for… 2）命令 order sb. to do sth. order that sb. (should) do sth. 那名军官命令士兵立即开枪。 The officer ordered that the soldiers fire at once.
三种比较句型的转换： 1) 3) 比较级＋than the +n.+ of 2) A+be+three times + as+adj/adv+as +B The well is four times deeper than that one. = The well is four times as deep as that one. =The well is four times the depth of that one. Tom weighs over twice as heavy as Mary. =Tom weighs over twice heavier than Mary.
What is the correct order to describe a scientific experiment?
aim
method
result
conclusion
Since you are interested in doing scientific experiments, now let’s get to know some vocabulary and knowledge related to science and experiment.
Potassium
（钾）
Let’s get to know more!
Calcium(钙)
Sodium(钠)
Magnesium(镁)
How about the following metals?
Aluminium
Zinc
Iron
Copper
（铝）
（锌）
（铁）
（铜）
think of 想像,考虑, 想起, 认为
Introduction
How much do you know
about general science?
Einstein
Introduction - 3.Quiz time.(4m) Choose the correct answers to the quiz in Part 1. Answers: 1. Water exists as a solid, a liquid and a gas. 2. When you heat a metal, it expands. 3. Steel is a mixture of iron and other substances. 4. Two-thirds of the earth’s surface is water. 5. The distance of the sun from the earth is 150,500,500 kilometres. 6. The earth is 4.6 billion years old. 7. The earth is forty-nine times larger than the moon.
• From 通过以上讨论，我们可以得出结论，时间 the discussion mentioned above, we can draw a conclusion that time is precious. 很宝贵。 (conclusion)