“Make-A-Wish” is one of the world’s most famous charities (慈善机构) . It makes wishes(愿望) come true for children who is badly ill. It gives them hope and joy and helps them forget about their health problems and have fun.

It all started in 1980 in Phoenix, Arizona. Christopher was a 7-year-old boy who was very sick .He always dreamed of becoming a police officer. Tommy Austin and Ron Cox, two police officers , made his wish come true .They gave Christopher a tour of the city in a police helicopter(直升飞机) and made a real police uniform(制服) for him.

There are four kinds of wishes children usually have:

I wish to go. Children usually want to travel or go to a concert, a game or a park.

I wish to meet. Children sometimes want to meet their favorite actors, singers or players.

I wish to be. Some children wish to become actors, singers or police officers.

I wish to have. They often want to have a computer, a game, a bike or many other things.

Let’s hope more wishes will come true in the future. People who work in the charity always try for the best .Almost 25,000 volunteers(志愿者) help, work or give money. Will you be one of them?

1.“Make-A-Wish” is a charity to help __________________.

A. sick children B. serious officers

C. famous actors (演员) D. popular singers

2.What did the two police officers do for Christopher?

A. They give him a computer.

B. They give him a tour of the city.

C. They took him to a concert.

D. They took him to the hospital.

3.Which kind of wishes does Christopher have?

A.I wish to go B.I wish to meet

C.I wish to be D.I wish to have

4.The purpose of the last paragraph is to ______.

A. explain (解释) what “Make-A-Wish” is

B. encourage (鼓励) more people to join the charity

C. tell us how Christopher’s wish came true

D. introduce (介绍) different kinds of children’s wishes

5.Which of the following is TRUE according to the passage?

A. Sick children just wish to get well.

B. Christopher and Tommy are two officers.

C.A few people are working for ‘‘Make-A-Wish’’.

D. “Make-A-Wish” has a history of over 30 years.

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 then 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 our side 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 our. 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 walls requires further study and research.

1.The best title of the passage can be .

A. Different Plants B. Different Animals

C. The Plant Cell Wall D. The Uses of Cells

2. From the first two paragraphs we can find that .

A. all plants have a cell 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

3.The underlined word “bent” in the passage is the closest in meaning to .

A. shape-changed B. water-kept

C. sun-burnt D. skin- broken

4. 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

5. 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.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网