Look at the water in the jar. What observation can you make Step3 Doing and explaining. Divide students into groups with three or four. Have them explain as they do it. After doing that.what’s your conclusion?Is it interesting?What experiment would you like to do in this unit?Choose one and have a try as the PROJECT says. Class closing 查看更多

 

题目列表(包括答案和解析)

 

 

 

Look at the paper in the picture carefully. Is there anything different from your notebook paper? This kind of paper feels as soft as your notebook paper. It’s also easy to write on. But do you know, this kind of paper is made from stone?

As we know, stone is easy to get on the earth, so it’s cheap. And the stone paper is about 20% to 30% cheaper than ordinary paper. The stone paper causes little pollution and helps protect the environment, because it makes tree and water free. The following table shows what is needed to make one ton of stone paper and one ton of ordinary paper. 

Ingredients

   (成份)

One ton of

Trees

Water

Bleach

(漂白剂)

Stone

Additives

(添加剂)

Stone paper

No

No

No

0.8 ton

0.2 ton

Ordinary paper

5 tons

72 M3

Yes

0.2-0.3 ton

0

 

Now in Beijing, some students begin to use stone paper to do their homework. And during the two sessions (两会) in 2011, stone paper was also used.

1.Stone paper is ______________.

    A. cheap          B. difficult to write on    C. not soft          D. bad

2. We need  _______________ ton of stone to make one ton of stone paper..

    A. 0.8            B. 0.3                 C.  0.2           D. 0.25

3. ________________in Beijing begin to use stone paper to do their homework.

    A. All the students   B. Some students       C. Many students   D. Nobody

 

 

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Look at the paper in the picture carefully. Is there anything different from your notebook paper? This kind of paper feels as soft as your notebook paper. It’s also easy to write on. But do you know, this kind of paper is made from stone?
As we know, stone is easy to get on the earth, so it’s cheap. And the stone paper is about 20% to 30% cheaper than ordinary paper. The stone paper causes little pollution and helps protect the environment, because it makes tree and water free. The following table shows what is needed to make one ton of stone paper and one ton of ordinary paper. 

Ingredients
(成份)
One ton of
Trees
Water
Bleach
(漂白剂)
Stone
Additives
(添加剂)
Stone paper
No
No
No
0.8 ton
0.2 ton
Ordinary paper
5 tons
72 M3
Yes
0.2-0.3 ton
0
 
Now in Beijing, some students begin to use stone paper to do their homework. And during the two sessions (两会) in 2011, stone paper was also used.
【小题1】Stone paper is ______________.
A.cheapB.difficult to write onC.not softD.bad
【小题2】 We need  _______________ ton of stone to make one ton of stone paper..
A.0.8B.0.3C. 0.2 D.0.25
【小题3】 ________________in Beijing begin to use stone paper to do their homework.
A.All the studentsB.Some studentsC.Many studentsD.Nobody

查看答案和解析>>

 

 

 

Look at the paper in the picture carefully. Is there anything different from your notebook paper? This kind of paper feels as soft as your notebook paper. It’s also easy to write on. But do you know, this kind of paper is made from stone?

As we know, stone is easy to get on the earth, so it’s cheap. And the stone paper is about 20% to 30% cheaper than ordinary paper. The stone paper causes little pollution and helps protect the environment, because it makes tree and water free. The following table shows what is needed to make one ton of stone paper and one ton of ordinary paper. 

Ingredients

   (成份)

One ton of

Trees

Water

Bleach

(漂白剂)

Stone

Additives

(添加剂)

Stone paper

No

No

No

0.8 ton

0.2 ton

Ordinary paper

5 tons

72 M3

Yes

0.2-0.3 ton

0

 

Now in Beijing, some students begin to use stone paper to do their homework. And during the two sessions (两会) in 2011, stone paper was also used.

1.Stone paper is ______________.

    A. cheap          B. difficult to write on    C. not soft          D. bad

2. We need  _______________ ton of stone to make one ton of stone paper..

    A. 0.8            B. 0.3                 C.  0.2           D. 0.25

3. ________________in Beijing begin to use stone paper to do their homework.

    A. All the students   B. Some students       C. Many students   D. Nobody

 

 

查看答案和解析>>

阅读理解

  Look at the paper in the picture carefully.Is there anything different from your notebook paper? This kind of paper feels as soft as your notebook paper.It’s also easy to write on.But do you know, this kind of paper is made from stone?

  As we know, stone is easy to get on the earth, so it’s cheap.And the stone paper is about 20% to 30% cheaper than ordinary paper.The stone paper causes little pollution and helps protect the environment, because it makes tree and water free.The following table shows what is needed to make one ton of stone paper and one ton of ordinary paper.

  Now in Beijing, some students begin to use stone paper to do their homework.And during the two sessions(两会)in 2011, stone paper was also used.

(1)

Stone paper is ________.

[  ]

A.

cheap

B.

difficult to write on

C.

not soft

D.

bad

(2)

We need ________ ton of stone to make one ton of stone paper.

[  ]

A.

0.8

B.

0.3

C.

0.2

D.

0.25

(3)

________ in Beijing begin to use stone paper to do their homework.

[  ]

A.

All the students

B.

Some students

C.

Many students

D.

Nobody

查看答案和解析>>

根据对话情景,填入恰当的单词。
A: Excuse me. Can I help you?
B: Yes. I want to go to Center Street. Can you tell me the  _____1_____ ?
Sure. Now we are in Bridge Street. It's not far from it.
B: Can I _____2_____ there?
A: Err…you can. But you'd better not. Now it's  _____3_____.  Look at the water on the street.
B: Then can I take a taxi?
A: There is no need to take a taxi. It is near to Center Street. Many  _____4____  go there.
B: OK. By the way, where is the bus stop?
A: Go _____5____ his street and you can see it on your right.
B: Thank you very much.
A: You're welcome.

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