It becomes warmer. The temperature goes up! Learning method: Listen, say, read and write. Learning steps: Step 1. Check Check Lesson 1: ask some students to act the dialogue out. Step 2. Learning Learn the new words. Read and write. Step 3. Looking Look at the pictures and read it. Step 4. Learning Learn it. Find out the useful expressions. Step 5. Practice Practice the dialogue. Step 6. Exercises Step 7. Homework: Describe spring. Lesson 3 Postcard Learning aims: 查看更多

 

题目列表(包括答案和解析)


April 22 is Earth Day. Everyone on Earth should care about and protect the earth!
The earth has warmed by about 1°F (华氏度) over the past 100 years, but why and how?
Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. But many scientists say that people are doing many things which makes the earth warmer.
First, greenhouse effect (温室效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. Climate (气候) change is another important reason. Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.
When the earth becomes warmer, there may be more rain and a rise in sea level. It will affect the growth of plants, animals and people. On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.
People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. For example, we can use fridges less. We can tell more people about protecting the earth.
【小题1】Earth Day is probably set for people to ______.

A.learn more about the earthB.make full use of the earth
C.take better care of the earth.D.study the warmth of the earth
【小题2】We can infer (推断) from the passage that the reasons for the warmer earth are
______ now.
A.not very clear B.completely secretC.well knownD.not given yet
【小题3】Greenhouse effect comes from______.
A.sea risingB.climate changeC.nature's unbalanceD.people's activity
【小题4】The passage mainly tells us that ______.
A.there is more rain nowB.we should protect the earth
C.we must stop pollutionD.sea level is getting higher

查看答案和解析>>

April 22 is Earth Day. Everyone on Earth should care about and protect the earth!

The earth has warmed by about 1°F (华氏度) over the past 100 years, but why and how?

Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. But many scientists say that people are doing many things which makes the earth warmer.

First, greenhouse effect (温室效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. Climate (气候) change is another important reason. Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.

When the earth becomes warmer, there may be more rain and a rise in sea level. It will affect the growth of plants, animals and people. On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.

People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. For example, we can use fridges less. We can tell more people about protecting the earth.

1.Earth Day is probably set for people to ______.

A.learn more about the earth                B.make full use of the earth

C.take better care of the earth.              D.study the warmth of the earth

2.We can infer (推断) from the passage that the reasons for the warmer earth are

______ now.

A.not very clear      B.completely secret   C.well known        D.not given yet

3.Greenhouse effect comes from______.

A.sea rising          B.climate change     C.nature's unbalance  D.people's activity

4.The passage mainly tells us that ______.

A.there is more rain now                   B.we should protect the earth

C.we must stop pollution                   D.sea level is getting higher

 

查看答案和解析>>

阅读短文,根据短文内容,从短文后的五个选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。(共8分,每小题2分)

April 22 is Earth Day. Everyone on earth should care about and protect the earth! The earth has warmed by about 1 °F over the past 100 years, but why and how? Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. __1__

First, greenhouse effect (效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. __2__Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.

When the earth becomes warmer, there may be more rain and a rise in sea level. __3___ On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.

People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. __4___ We can tell more people about protecting the earth.

A.So it will affect the growth of plants, animals and people.

B. But many scientists say that people are doing many things which make the earth warmer.

C.For example, we can use fridges less.

D. People in many cities turn off the lights for an hour on that day.

E.Another important reason is climate change.

 

 

查看答案和解析>>

完形填空。
     What do you know about the sea? Everybody knows that the sea  1   beautiful when the sun is
shining on it. But it becomes very terrible when  2    a strong wind. If you study the map of the world,
you will  3   that about two thirds(三分之二)of the world is the sea.
     Have you ever been to(曾经去过)the sea?The sea is very deep(深的). In some places the sea is 
  4    deeper. The  5   mountain(大山) in the world is about 9 kilometers high. While(然而) the deepest
place of the sea is almost(几乎)11 kilometers deep. 
      The sea  6   very cold. On the top of the sea the water may be 7  . But if you go down , it becomes colder and  8   In most places of the sea, there are lots of fishes. and plants. Some live near the top of the sea.   9    live deep down. 
      You know the sea water is salty. The water of the Dead Sea is very salty. It is so salty   10  fish can't
live in it. What a strange sea!
(    ) 1. A. sees    
(    ) 2. A. there are
(    ) 3. A. learn    
(    ) 4. A. very    
(    ) 5. A. high    
(    ) 6. A. can      
(    ) 7. A. cold    
(    ) 8. A. colder  
(    ) 9. A. Other    
(    )10. A. after    
B. looks    
B. there has
B. know about
B. much      
B. tall      
B. can is    
B. warm      
B. cold      
B. Others    
B. that      
C. watches  
C. there is  
C. look for  
C. more      
C. higher    
C. can be    
C. colder    
C. warmer    
C. The others
C. when      
D. looks at    
D. there have  
D. think of    
D. most        
D. highest    
D. could      
D. hot        
D. warm        
D. The other  
D. until      

查看答案和解析>>

April 22 is Earth Day. Everyone on earth should care about and protect the earth! The earth has warmed by about 1 °F over the past 100 years, but why and how? Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. __60__   

   First, greenhouse effect (效应) is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. __61__Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too.
    When the earth becomes warmer, there may be more rain and a rise in sea level. __62___ On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100.
    People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. __63___ We can tell more people about protecting the earth.

A.So it will affect the growth of plants, animals and people.

B. But many scientists say that people are doing many things which make the earth warmer.

C.For example, we can use fridges less.

D. People in many cities turn off the lights for an hour on that day.

E.Another important reason is climate change.

查看答案和解析>>


同步练习册答案