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(共19张PPT)
Unit 4
fight against/with…
provide sb with sth
provide sth for sb
be home to…
take in
come from
与……作斗争
给某人提供某物
是…的家园
吸收
来自
Phrases
in many ways
for example
in fact
look around
be made of
be made from
be made in
在很多方面
例如
事实上，确切地说
环顾四周
由…制成(能看出原材料)
由…制成(看不出原材料)
在…制造
Phrases
cut down
millions of
thousands of
in our daily lives
know(a lot/more)about
be good for
砍倒（树木）
大量的;
成千上万的
在我们的日常生活中
知道; 了解
(许多/更多)
对...有好处
Phrases
be bad for
plant... in the ground
in one’s mind
answer a phone
because of
as a result
对...有坏处
在地上种植...
在...心里，
接电话
因为
结果是
Phrases
do one’s best to do sth
be in danger
according to
interview sb. about sth.
talk to sb. on the phone
尽力做某事
处于危险中
按照，根据
就某事采访某人
在电话里和...讲话
Phrases
keep the air cool and clean
保持空气凉爽干净
使我们的生活更加便利
make our lives more convenient
pine tree
pear tree
apple seed
lose one’s home
Tree Planting Day
square kilometre
white tea
green tea
black tea
松树
梨树
苹果籽
失去…家园
植树节
平方米
白茶
绿茶
红茶
1. major=
2. convenient =
3. produce=
4. be harmful to =
5. carry =
6. come from =
7. discuss =
big and important
easy
make
be bad for
hold
is from
talk about
二. 同义词
8. arrive at =
9. provide sb with sth=
=
10. be good for=
11. have fun=
12. millions of=
13. save=
get to =reach
provide sth for sb
give sth to sb
be helpful for
enjoy oneself
= have a good time
many = a lot of
keep…safe
三. 词形变化
1. dig(v） _______ (pt)
2. discuss(v)___________ (n)
3. fight（v）_________(n)_______(pt)
4. harmful(adj.)_________(反) ________（n）
5. produce(v）_______(n生产商)________(n产品)
6. convenient(adj)_______________(n)
7. imagine(v)____________(n)
8. be made of 由...制造，看得出原材料
be made from 由...制造，看不出原材料
discussion
harmless
producer
fighter
imagination
product
harm
convenience
dug
fought
1. 他们在很多方面帮助我们，他们净化空气。
They help us in many ways, they keep the air cool and clean.
2. 它们从空气中吸收有害气体，产生供我们呼吸的氧气。
They take in harmful gases from the air and produce oxygen for us to breathe.
3. 他们是空气污染的主要斗争者。
They are major fighters against air pollution.
4. 事实上，我们从树身上获取了很多。
In fact, we get a lot more from trees.
四. 句子
5. 许多家具都是用木头做的。
A lot of the furniture is made of wood.
6. 树在我们的日常生活中真的重要。
Trees are really important in our daily lives.
7. 我不能想象一个没有树的世界。
I can't imagine a world without trees.
8. 如果我们不想要一个没有树的世界，我们应该停止砍树。
We should stop cutting down trees if we don't want a world without trees.
五、语法复习
肯定句：He is drinking a glass of water at the moment.
否定句：He is not drinking a glass of water at the moment.
一般疑问句：Is he drinking a glass of water at the moment
回答：---Yes, he is. / No, he isn’t.
划线部分提问：What is he drinking at the moment
肯定句：We are making kites under the tree now.
否定句：We are not making kites under the tree now.
一般疑问句：Are you making kites under the tree now
回答：---Yes, we are./ No, we aren’t.
划线部分提问：Where are you making kites now
Listen! She is singing.
Look! My mother is watering the flowers.
某些表示感官直觉、状态或心理感觉的动词，如believe, hear, see, like, love, prefer, hate, understand, know, taste, smell, sound, look, want 等一般不用现在进行时，而用一般现在时。
现在进行时的特殊用法
I know the answer now.
I’m knowing the answer now.
She likes this poem.
She is liking this poem.
×
√
×
√
动词-ing的构词规律:
1) 动词后面直接加ing
doing buying playing
2) 动词去掉e加ing:
having taking giving writing
3) 重读闭音节、结束只有一个辅音字
母的, 双写动词最后一个字母, 然后
加ing。
running swimming sitting
shopping getting beginning putting
4) 特殊形式的变化
lie — lying die — dying
六. 书面表达。 （15分）
　　吃过晚饭后，Helen—家人都在做自己喜欢的事情。请根据以下汉语提示，写一篇60词以上的英语短文，介绍一下他们一家人正在做什么。
要求:
语句通顺，条理清楚;合理运用现在进行时。
要点：
1. Helen在房间里听音乐；
2. 弟弟正在和他的宠物狗玩；
3. 妈妈和妹妹在客厅看电视；
4. 爷爷在沙发上看报纸；
5. 爸爸在书房里，在电脑上工作。
Everyone in Helen’s family is enjoying themselves after supper. Helen likes music. Look! She is listening to music in her room. Her brother is playing with his pet dog. Helen’s mother and her little sister are watching TV in the living room. Helen’s grandfather is reading a newspaper on the sofa. What is her father doing He is working on the computer in the study. He is always busy.

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