also   difference  call  another  home   Japan   with   when  around    else 

    All   1   the world, people drink tea. But tea doesn’t mean the same thing to everyone. In different countries people have very   2   ideas about drinking tea.

    In China, for example, tea is always served   3   people get together. The Chinese drink it at any time of the day at   4  or in tea houses. They prefer their tea plain, with nothing   5  in it.

Tea is  6   important in Japan. The Japanese have a special way of serving tea   7   a  tea ceremony （茶道）. It is very old and full of meanings. Everything must be done in a special way in the ceremony. There is even a special room for it in

  8   homes.

      9   tea-drinking country is England. In England, the late afternoon is “teatime”.  Almost everyone has a cup of tea then. The English usually make tea in a teapot and drink it  10   cream and sugar. They also eat cakes, cookies and little sandwiches at teatime.

1._______________2.______________3._____________4._______________5._____________

6._______________7.______________8._____________9._______________10.____________

also   difference  call  another  home   Japan   with   when  around    else 

    All   1   the world, people drink tea. But tea doesn’t mean the same thing to everyone. In different countries people have very   2   ideas about drinking tea.

    In China, for example, tea is always served   3   people get together. The Chinese drink it at any time of the day at   4  or in tea houses. They prefer their tea plain, with nothing   5  in it.

Tea is  6   important in Japan. The Japanese have a special way of serving tea   7   a  tea ceremony （茶道）. It is very old and full of meanings. Everything must be done in a special way in the ceremony. There is even a special room for it in

  8   homes.

      9   tea-drinking country is England. In England, the late afternoon is “teatime”.  Almost everyone has a cup of tea then. The English usually make tea in a teapot and drink it  10   cream and sugar. They also eat cakes, cookies and little sandwiches at teatime.

1._______________2.______________3._____________4._______________5._____________

6._______________7.______________8._____________9._______________10.____________

also   difference  call  another  home   Japan   with   when  around    else 

    All   1   the world, people drink tea. But tea doesn’t mean the same thing to everyone. In different countries people have very   2   ideas about drinking tea.

    In China, for example, tea is always served   3   people get together. The Chinese drink it at any time of the day at   4  or in tea houses. They prefer their tea plain, with nothing   5  in it.

Tea is  6   important in Japan. The Japanese have a special way of serving tea   7   a  tea ceremony （茶道）. It is very old and full of meanings. Everything must be done in a special way in the ceremony. There is even a special room for it in

  8   homes.

      9   tea-drinking country is England. In England, the late afternoon is “teatime”.  Almost everyone has a cup of tea then. The English usually make tea in a teapot and drink it  10   cream and sugar. They also eat cakes, cookies and little sandwiches at teatime.

1._______________2.______________3._____________4._______________5._____________

6._______________7.______________8._____________9._______________10.____________

also   difference  call  another  home   Japan   with   when  around    else 

    All   1   the world, people drink tea. But tea doesn’t mean the same thing to everyone. In different countries people have very   2   ideas about drinking tea.

    In China, for example, tea is always served   3   people get together. The Chinese drink it at any time of the day at   4  or in tea houses. They prefer their tea plain, with nothing   5  in it.

Tea is  6   important in Japan. The Japanese have a special way of serving tea   7   a  tea ceremony （茶道）. It is very old and full of meanings. Everything must be done in a special way in the ceremony. There is even a special room for it in

  8   homes.

      9   tea-drinking country is England. In England, the late afternoon is “teatime”.  Almost everyone has a cup of tea then. The English usually make tea in a teapot and drink it  10   cream and sugar. They also eat cakes, cookies and little sandwiches at teatime.

1._______________2.______________3._____________4._______________5._____________

6._______________7.______________8._____________9._______________10.____________

It may seem easy to say that plants and animals are different. Any child can tell the difference between  a tree and a dog. But those differences are far deeper than just what they look like. The cells (细胞) that plants are made up of are different. In other words, the cell wall of plants has something special.

First of all, it's important to find that not all plant cells have a cell wall. Besides, there are many differences of a cell wall based on the kinds of plant. The following is meant to be what a plant cell wall is  like.

  The cell wall of a plant is on the outside of the cell membrane (膜). It is usually hard and cannot be bent easily, but the degree of flexibility (韧性) of the cell wall is different. It is based on the special use that the cell has in keeping the plant alive. Cells that make up the trunk of a tree are clearly less flexible than? cells on a leaf.

     Cell walls act in many ways. They serve to protect the plant. They provide support, as well as help in the movement of chemicals and wastes into and out of the cell.  More importantly, they control the water? that goes in and out.  Plants must have good water controlling systems (系统), allowing them to keep water during dry seasons, and get rid of unnecessary water. Plants can't walk around to find water, so  being able to control water is very important.

So there you have it , what a plant cell wall is. Of course, there are many other things that are not talked about here. Knowing more about plant cell wails requires further study and research.

1.From the first two paragraphs we can find that _____.

A. all plants have a ceil wall?????????????

B. plant cells and animal cells are the same

C. different kinds of plant have different cell walls

D. there are no differences between the cells of a tree and a dog

2.The underlined word "bent" in the passage is the closest in meaning to _____.

A. 变形的 ?? B. 防水的   ? C. 太阳灼伤的     ??? D. 表皮破损的

3.Cells in the trunk of a tree are _____ those on a leaf.

A. as flexible as             ?????????  B. not so flexible as

C. more important than                ?? D. less important than

4.What is the most important use of a plant cell wall?

A. To protect the plant.                ???? B. To provide support.

C. To move chemicals and wastes.       D. To control the water.