(共45张PPT)
Unit 5 Water
Period 4 Speaking & Writing
牛津深圳·广州版 七年级下
Recognize words containing /str/, /spl/, /spr/ and /str/.
Describe the process of water circulation using a flowchart.
Use flow charts to describe the development process of things correctly.
Learning objects
Tongue Twister
Lead in
Challenge yourselves
How many snacks could a snack stacker stack, if a snack stacker snacked stacked snacks
如果零食容器能装零食的话，一个装零食的容器能装多少零食
Talk time
Read loudly.
认识辅音连缀/str/。 /str/是字母组合str在单词中的读音。
朗读下列含有/str/的单词和例句，注意划线部分的读音。
Talk time
straight strawberry street strict
It was strange for him to walk on the street all night.
认识辅音连缀/spl/。 /spl/是字母组合spl在单词中的读音。
朗读下列含有/spl/的单词和例句，注意划线部分的读音。
Talk time
splash splendid split
认识辅音连缀/spr/。 /spr/是字母组合spr在单词中的读音。
朗读下列含有/spr/的单词，注意划线部分的读音。
Talk time
spray spread spring
认识辅音连缀/skr/。 /skr/是字母组合skr在单词中的读音。
朗读下列含有/skr/的单词，注意划线部分的读音。
Talk time
scream screen script
describe description
Have a go
A1 Listen carefully and circle the word you hear from each pair.
A2 Read these sentences. Pay attention to the letters in bold.
Have a go
1. The strawberry plant in the street looks strange, but the strawberries are nice and sweet.
2. Heavy rain splattered on the roof and splashed against the windows of the splendid house.
3. Sprinkle the seeds around. Spread them out. In spring, you will have green sprouts.
4. The screenwriter screamed when she saw the script.
Speak up
Hello, everyone. I am a drop of water. But, I can be in other forms. Can you find me in the nature
n. 形式；v. 形成
form
Speak up
snow
rain
cloud
water
ice
vapour
You are so clever! Actually, I just fell down from the cloud. Do you want to know my journey
becomes vapour
heats the water
rain falls
forms clouds
Cools and forms small drops of water
Put the followings in the correct order
Speak up
becomes vapour
heats the water
rain falls
forms clouds
Cools and forms small drops of water
First
Then
Next
Finally
Flow chart
Speak up
Use the flow chart to retell the journey of this drop of water.
Let me tell you a drop of water’s journey. First, it’s in the sea. The sun heats the water. Then, it becomes vapour and goes up to the sky.
The vapour forms clouds in the sky.
Next, the cloud cools and forms small drops of water.
Finally, the rain falls.
Speak up
Show Times
Have a go
Writing
Pre-writing
What are used in these experiment
Pre-writing
What experiment is the boy doing In groups, describe the pictures.
Pre-writing
An experiment
Things to use
Steps to follow
Result to find
Pre-writing
Look at the pictures carefully, and answer the questions.
What are used in the experiment
How many steps are there in the experiment
What does the boy do in each step
What result can the boy get
Pre-writing
What are used in the experiment
stir v. 搅拌
Cup holder
Pre-writing
作品 http://.yanj.cn
Step 1
Step 2
Step 3
Step 4
How many steps are there in the experiment
Pre-writing
The boy is adding some salt to the glass.
The boy is stirring the water. Then the salt disappears.
What does the boy do in each step
salt
Pre-writing
The boy is heating the water.
The boy is so happy because the water starts to dry up.
干涸
Pre-writing
What result can the boy get
Pre-writing
salt
crystal
turn into
Finally, …(start to dry up)
Heat the water. (a white cloud, be made up of,
small drops of, continue)
Stir the water. (disappear, become part of)
Add some salt to a glass of water.
A flow chart
Writing
continue v. 继续
How to write an experiment
1. 多用无主语的祈使句。
2. 常用表示时间先后顺序的序数词或时间副词。
Add some salt to… Heat the water.
First, … Second, …
Then, … Finally, …
Writing
Writing
B Write a short paragraph about this experiment. Use the flow chart to help you.
First, add some salt to a glass of water. ___________________________________
_________________________________________________________________________________________________________
___________________________________________ The salt turns into crystals.
Then stir the water. The salt disappears and becomes part of the water. Next, heat the water. You can see a white cloud. It is made up of small drops of water. Continue to heat the water. Finally, the water starts to dry up.
Go over the process of how water becomes rain on Page 66. Take notes on the important steps.
Have a go
A flow chart about
how water becomes rain
First, … heats the water …
Then, … becomes vapour …
Next, … forms clouds …
Finally, … cools …
Have a go
In groups, make a flow chart about the whole journey of water. Here is an example:
The sun heats the water.
It becomes vapour and goes up to the sky.
The cloud cools and forms small drops of water.
Have a go
请根据以下表格的内容提示，写一篇80 词左右的英语短文，说明为什么要节约用水和如何节约用水，可适当发挥。
Exercise
节约用水的原因 地球上大部分的水是海水，海水里有太多的盐，不能直接饮用；只有少量淡水可供饮用。
节约用水的方法 1. 不用水时，记得不要让水龙头开着。
2. 循环用水，而不要把水倒掉。
Step 1. 谋篇布局
Guide
文章内容可分成两段。第一段说明_______________，第二段提出_______________。文章主要采用_______人称，___________时态。
节约用水的原因
节约用水的方法
第一
一般现在
你能想起与短文有关的学过的词汇吗？试一下吧！
1. 对某人是重要的
2. 大部分
3. 太多的盐
4. 少量的水
5. 在很多不同的方面
6. 让水龙头开着
7. 代替；而不是
1. be important to sb
2. most of
3. too much salt
4. a little water
5. in many different ways
6. leave the tap on
7. instead of
Guide
Step 2: 激活词汇
运用以下结构，可以让你的文章更出彩哦。
1. It is +形容词+ for sb + to do sth “对某人来说做某事是……的”
【例】对他来说，收集特别的硬币是有趣的。
It is interesting for him to collect special coins.
【译】对我们来说，节约用水很重要。
Guide
It’s very important for us to save water.
Step 3: 精彩结构
2. remember not to do sth. “记得不要做某事”
【例】记得不要在湖里游泳。
Remember not to swim in the lake.
【译】当我们不用水时，记得不要让水龙头开着。
Remember not to leave the tap on when we
don’t use water.
Guide
3. stop doing sth “停止做某事；不做某事”
【例】儿子睡着了之后，李先生就不看电视了。
After his son fell asleep, Mr Li stopped watching TV.
【译】因为水是如此重要，所以我们应该停止浪费水。
We should stop wasting water because it is so important.
Guide
Step 4: 参考连接词
and, then, so, because, after that, finally …
Guide
Water is very important to people. However, most of the water on Earth is sea water. We cannot drink it because there is too much salt in it. Only a little water is fresh and drinkable. So it is important for us to save water.
We can save water in many different ways. For example, remember not to leave the tap on when we don’t use water. Besides, we can reuse water instead of pouring it away. We should stop wasting water because it is so important.
Example
Homework
Finish the writing exercise paper.
Where there is water, there is life.
Reflection
谢谢
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