Module 5 A Lesson in a Lab reading课件
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| 名称 | Module 5 A Lesson in a Lab reading课件 |  | |
| 格式 | rar | ||
| 文件大小 | 787.4KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2010-12-16 06:50:00 | ||
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课件41张PPT。Module 5 A Lesson in a Lab New Words1. expand 膨胀 contract 收缩
Metal expands with heat and contracts with cold. 2. conclusion 结论
make/lead to a conclusion下结论
come to/ arrive at/reach/draw a conclusion 得出结论
In conclusion 最后，总之in brief=at last=in a word=in a nutshell用在最后一段，做总结It’s difficult to reach a conclusion because we know little about that plan.
____, I’d like to say thanks to everybody present. A In conclusion B In surprise
C In detail D In shock
The investigation finally ended, without any conclusion______.
A arrived B reached C come D brought☆☆3. with the aim of doing sth 以做某事为目的 aim to do sth 目的是做某事 aim sth at 用某物朝。。。瞄准 aimless adj. 无目的的 4. electric使用或产生电力的 electric guitar/chair/fence/wire/fan/motor电动机 electrical与更加概括的名词如equipment 和wiring(供电线路) 以及与电有关的事物搭配 electrical equipment/signal/engineer/ power/energy电能Lead inLook at the picture carefully and guess what she is doing. Can you match the equipments she uses?Scientific experiment
apparatusBunsen burnertest tubetube holder（equipment）tongs 夹子 balance天平crucible 坩埚 beaker烧杯
& glass rod玻璃棒
Passage A1. Read passage A quickly, and choose the best title for it.The Different Uses of Metals
The Reaction of Metals
The Reaction of Metals with OxygenHere is a table with metals that react
most at the top, and the metals that
react least at the bottom.这里有一个表格, 反应强的金属在上面, 反应弱的在下面。2.Translate the following sentence into Chinese.Which of the metals reacts the most with oxygen and water?
What happens when you heat calcium in oxygen?
Which metals reacts with steam?
Does iron have a slow or fast reaction with steam?
Does copper react with water?
Potassium.It burns to form an oxide.Magnesium,
aluminium,zincSlow.No, it doesn’t.3. Look at the form carefully and answer the following questions.Passage B 1. Look at the pictures and guess if we can put iron nails in wet air.The nail will rust.2. Read Passage B carefully and complete the following chart.--- nails--- nails--- nails--- nails--- nails--- nails___________________________cotton wool
_____________________cotton woolIron doesn’t rustOil layerwaterOil layerwaterIron doesn’t rustwaterwaterIron rusts3. Read Passage B quickly and judge whether these statements are true or false.Iron rusts easily in dry air.
To make sure there’s no air in the water, you have to boil the water for 3 minutes.
We don’t know whether iron rusts in ordinary water.FTF4. The Application of the ExperimentIron pan If we don’t use it in the correct way, it willrustThen, what should we do to stop the iron pan from rusting? Can you give some suggestions?Clean it, dry it and oil it in order to keep air out of it.
5. Suppose you are going to do a scientific experiment to see how potassium reacts with cold water. Can you describe the process? apparatuses, conclusion, reacts, scientific experiment, pour This is a _________ _________ done in a lab.
First, get all the ____________ ready on the desk, a container(容器) with some cold water in it, some potassium(钾) and a spoon.
Secondly, ________ some potassium into the water. Then a strong light will be seen, and it lasts for a while.
We can reach a __________ that potassium _____ with cold water.
scientific experimentapparatusespourconclusionreactsFill in the blanks with the phrases given to describe the process of this experiment.Language PointsThe reaction of metals with these substances can be put in order .
In order /in …order /in the order of /out of order
1. What is “order”?Translate the following sentences into Chinese.In the library, books are usually put in the order of the first letter of the writers’ surname .
The books on his desk are in order.
This time we stood in line in the order of age instead of in the order of height .
我们这次是按照年龄顺序而不是按照身高站队。
1. He left his clothes on the playground.
他把衣服忘在操场上了。2.Who left the door ___________(开/关)?
Who left the lights _____(亮着)? open / closed on3. Leave the girl where she is.4. Just leave the engine _______(run).running2. Leave不只是“离开”放置3. make sure of sth. 从句
I made sure of his arrival.
You’d better make sure when and where the meeting will be held. 4. Add 加 add… to … 把… 加入 …
add to 增加
add up 加起来
add up to 总计是
There is no doubt that it is like adding oil to the fire .
These newly-built gardens add to the beauty of the city .
1,2,3….and 100 adds up to 5050.
5. This will keep air out of the water.
keep …out of /keep …out /keep…from …/ keep off /keep up withBefore you go to bed you’d better close the doors and windows to ____ thieves ___.
The fire is dangerous so you should ____ the child __ the fire.
Please _______ the grass.keepoutkeepoffkeep off6. latestlate
later
latter
lately
latest
in late summer/ late at nightSee you later!
I met her again three years later.
the former…the latter副词，最近，不久前 Have you been on a bus lately ?
最近的，最新的 the latest news7. lectureto give/ deliver a lecture to sb
to attend a lecture
a lecture room/ hall
lecturer
GrammarThe earth is forty-nine times larger than the moon .
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。三种比较句型的转换：
1) A+be+four times +比较级＋than +B
2) A+be+four times+as+adj/adv+as +B
3) A+be+four times +the +N of BThe 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.哪一些词可以来修饰比较级？
1) much/rather/a bit/a little/a lot/a great deal/any/…
2) 倍数、分数、百分数、小数
3) 一些名词The weather in winter in Beijing is much colder than that in Shanghai.
This book is 50% more expensive than that one.
John is a head taller than I.Translate the following sentences into Chinese.一个固定句型: the +比较级, the +比较级The more often you stay with him, the better you will find he is.
The faster we walk, the more likely we will be to catch the bus.
The more, the better.
The sooner, the better.1. That doesn’t sound very frightening, Paul. I’ve seen _______. What did you like most about the film ? A. better B. worse C. best D. worst Choose the best2. The number of people present at the concert was _______than expected. There were many tickets left. A. much smaller B. much more C. much larger D. many more3. He speaks English well indeed, but, of course , not_____a native speaker. A. as fluent as B. more fluent than C. so fluently as D. much fluently than
4. It is reported that the United States uses ___energy as the whole of Europe. A. as twice B. twice much C. twice much as D. twice as much5. Mary kept weighing herself to see how much _____she was getting. A. heavier B. heavy C. the heavier D. the heavier 6. Our neighbour has__________ ours. A. as a big house as B. as big a house as C. the same big house as D. a house the same big as
Metal expands with heat and contracts with cold. 2. conclusion 结论
make/lead to a conclusion下结论
come to/ arrive at/reach/draw a conclusion 得出结论
In conclusion 最后，总之in brief=at last=in a word=in a nutshell用在最后一段，做总结It’s difficult to reach a conclusion because we know little about that plan.
____, I’d like to say thanks to everybody present. A In conclusion B In surprise
C In detail D In shock
The investigation finally ended, without any conclusion______.
A arrived B reached C come D brought☆☆3. with the aim of doing sth 以做某事为目的 aim to do sth 目的是做某事 aim sth at 用某物朝。。。瞄准 aimless adj. 无目的的 4. electric使用或产生电力的 electric guitar/chair/fence/wire/fan/motor电动机 electrical与更加概括的名词如equipment 和wiring(供电线路) 以及与电有关的事物搭配 electrical equipment/signal/engineer/ power/energy电能Lead inLook at the picture carefully and guess what she is doing. Can you match the equipments she uses?Scientific experiment
apparatusBunsen burnertest tubetube holder（equipment）tongs 夹子 balance天平crucible 坩埚 beaker烧杯
& glass rod玻璃棒
Passage A1. Read passage A quickly, and choose the best title for it.The Different Uses of Metals
The Reaction of Metals
The Reaction of Metals with OxygenHere is a table with metals that react
most at the top, and the metals that
react least at the bottom.这里有一个表格, 反应强的金属在上面, 反应弱的在下面。2.Translate the following sentence into Chinese.Which of the metals reacts the most with oxygen and water?
What happens when you heat calcium in oxygen?
Which metals reacts with steam?
Does iron have a slow or fast reaction with steam?
Does copper react with water?
Potassium.It burns to form an oxide.Magnesium,
aluminium,zincSlow.No, it doesn’t.3. Look at the form carefully and answer the following questions.Passage B 1. Look at the pictures and guess if we can put iron nails in wet air.The nail will rust.2. Read Passage B carefully and complete the following chart.--- nails--- nails--- nails--- nails--- nails--- nails___________________________cotton wool
_____________________cotton woolIron doesn’t rustOil layerwaterOil layerwaterIron doesn’t rustwaterwaterIron rusts3. Read Passage B quickly and judge whether these statements are true or false.Iron rusts easily in dry air.
To make sure there’s no air in the water, you have to boil the water for 3 minutes.
We don’t know whether iron rusts in ordinary water.FTF4. The Application of the ExperimentIron pan If we don’t use it in the correct way, it willrustThen, what should we do to stop the iron pan from rusting? Can you give some suggestions?Clean it, dry it and oil it in order to keep air out of it.
5. Suppose you are going to do a scientific experiment to see how potassium reacts with cold water. Can you describe the process? apparatuses, conclusion, reacts, scientific experiment, pour This is a _________ _________ done in a lab.
First, get all the ____________ ready on the desk, a container(容器) with some cold water in it, some potassium(钾) and a spoon.
Secondly, ________ some potassium into the water. Then a strong light will be seen, and it lasts for a while.
We can reach a __________ that potassium _____ with cold water.
scientific experimentapparatusespourconclusionreactsFill in the blanks with the phrases given to describe the process of this experiment.Language PointsThe reaction of metals with these substances can be put in order .
In order /in …order /in the order of /out of order
1. What is “order”?Translate the following sentences into Chinese.In the library, books are usually put in the order of the first letter of the writers’ surname .
The books on his desk are in order.
This time we stood in line in the order of age instead of in the order of height .
我们这次是按照年龄顺序而不是按照身高站队。
1. He left his clothes on the playground.
他把衣服忘在操场上了。2.Who left the door ___________(开/关)?
Who left the lights _____(亮着)? open / closed on3. Leave the girl where she is.4. Just leave the engine _______(run).running2. Leave不只是“离开”放置3. make sure of sth. 从句
I made sure of his arrival.
You’d better make sure when and where the meeting will be held. 4. Add 加 add… to … 把… 加入 …
add to 增加
add up 加起来
add up to 总计是
There is no doubt that it is like adding oil to the fire .
These newly-built gardens add to the beauty of the city .
1,2,3….and 100 adds up to 5050.
5. This will keep air out of the water.
keep …out of /keep …out /keep…from …/ keep off /keep up withBefore you go to bed you’d better close the doors and windows to ____ thieves ___.
The fire is dangerous so you should ____ the child __ the fire.
Please _______ the grass.keepoutkeepoffkeep off6. latestlate
later
latter
lately
latest
in late summer/ late at nightSee you later!
I met her again three years later.
the former…the latter副词，最近，不久前 Have you been on a bus lately ?
最近的，最新的 the latest news7. lectureto give/ deliver a lecture to sb
to attend a lecture
a lecture room/ hall
lecturer
GrammarThe earth is forty-nine times larger than the moon .
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。三种比较句型的转换：
1) A+be+four times +比较级＋than +B
2) A+be+four times+as+adj/adv+as +B
3) A+be+four times +the +N of BThe 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.哪一些词可以来修饰比较级？
1) much/rather/a bit/a little/a lot/a great deal/any/…
2) 倍数、分数、百分数、小数
3) 一些名词The weather in winter in Beijing is much colder than that in Shanghai.
This book is 50% more expensive than that one.
John is a head taller than I.Translate the following sentences into Chinese.一个固定句型: the +比较级, the +比较级The more often you stay with him, the better you will find he is.
The faster we walk, the more likely we will be to catch the bus.
The more, the better.
The sooner, the better.1. That doesn’t sound very frightening, Paul. I’ve seen _______. What did you like most about the film ? A. better B. worse C. best D. worst Choose the best2. The number of people present at the concert was _______than expected. There were many tickets left. A. much smaller B. much more C. much larger D. many more3. He speaks English well indeed, but, of course , not_____a native speaker. A. as fluent as B. more fluent than C. so fluently as D. much fluently than
4. It is reported that the United States uses ___energy as the whole of Europe. A. as twice B. twice much C. twice much as D. twice as much5. Mary kept weighing herself to see how much _____she was getting. A. heavier B. heavy C. the heavier D. the heavier 6. Our neighbour has__________ ours. A. as a big house as B. as big a house as C. the same big house as D. a house the same big as