Why should we learn to swim?
Firstly, swimming is a good exercise for our health. Indeed doctors say it is the best exercise, because in swimming all the muscles of the body are used.
Secondly, swimming gives great pleasure. How nice it is, on a hot dusty day in summer, to take off one’s clothes and dive into the cool water of a rive or the sea, and to swim and float until one feels enough.
Thirdly, swimming may sometimes mean all the different between life and death, we never know when we may be in danger from water. We got on a voyage, and the ship in wrecked; we go for a pleasure sail on a lake and the boat turns over; we slip as we are walking along the bank of a river, and half in the water. If we can swim, we have chance for saving our own lives, but if we cannot swim, we are pretty certain to be drowned. So for our own safety, we should learn to swim.
Lastly, if we can swim, we may be able to save other people from drowning. How sad it is to see a friend drowning before our eyes while we cannot help just because we cannot swim.
(   )4.Who says that swimming is the best exercise?  _________.
A. Farmers  B. Dentists    C. Fishermen        D. Doctors
(   )5.When swimming, ________.
A. We don’t move at all   
B. all the muscle of the body are used
C. we move our legs only
D. we drink lots of seawater into our stomach
(   )6.Swimming ­­­­________.
A. gives great pain                     B. gives no pleasure   
C. gives much pleasure                  D. does harm to the body
(   )7.If we can swim, ________.
A. we are no longer humans, but fish        
B. we shall be drowned one day
C. we have a chance of saving our own lives  
D. we can’t walk any more

On my way home I knocked into a stranger as he passed by. “Oh. I'm terribly sorry,” I said. “That’s all right. Please excuse me too. I wasn't even  15  you. I wish I didn’t hurt you,” said the man.
We were very    16  . We said good-bye and went on our way.
But at home we often    17   our loved ones in a different way.
Later that day, while I was cooking the evening meal, my daughter stood beside me very quietly. When I turned around, I nearly    18  her down. “Move out of the way, ” I shouted. She walked away, tears（眼泪）in her eyes.
While I lay awake in bed, I realized how   19   I’d spoken. So I decided to get up to say sorry to my daughter. On the way to her bedroom, to my surprise, I found some   20  by the door of the kitchen. At that time my tears began to fall. I quietly went and got down on my knees by her   21 . She woke up and put her arms around my neck when I kissed（接吻）her. Then I asked, “Did you pick these flowers for me?”
She smiled and said, “I found them out by the tree. I picked them   22    they're pretty like you. I knew you’d like them. I stood quietly in order to give you a surprise.” “Oh dear, I'm really sorry for the way I acted today. I shouldn’t have shouted at you,” I said.
“That’s OK, Mom. I   23   you anyway,” she said.
I suddenly realized what a clever way it is to explain the word   24   like this: Father And Mother, I Love You!

When we talk about stars, especially women stars，it seems that they are always young，pretty and own charming body shapes．But recently a Britain's Got Talent（英国达人）star Susan Boyle has changed our views absolutely(完全地)．

Simon Cowell，one of the judges of the talent show spoke of his shock over Ms Boyb's voice. “This lady came up，and I'm thinking, ‘This will take five seconds and I can go to have a cup of tea.’ That changed when she began to sing I Dreamed a Dream from Les Miserables. She knew we were going to have that reaction and just to see that look of satisfaction on her face midway through —it was one of my favorite moments,” Cowell said.

The performance was posted On line and before long，the 47-year-old Scottish woman has been famous all over the world．

Speaking from her home in Scotland,MsBoyle said that she hadn't thought of changing her appearance．She said that her friend helped her with make-up．“I mean，that's hardly a makeover.” she added．

Ms. Boyle also spoke of the reason she first began to explore her vocal(歌唱的) talents．”I was kind of slow at school, so getting something like singing was a good way of hiding behind that and thus it built my confidence．’’

1.Susan Boyle is __________．

A．a judge  B．a reporter  C．a beautiful lady D．a Scottish woman

2.Susan Boyle had a look of satisfaction on her face when she was singing because ______.

A．she was confident of her singing

B．she was satisfied with the judges

C．she was pretty and in good shape

D．she sang the song，I Dreamed a Dream from Lea Miserables

3.What does the underlined word “views” mean?

A. 见解 B. 预告    C. 复习     D. 景色

4.According to the passage，which is NOT true?

  A．It was the vocal talents that built Susan's confidence．

  B．Susan Boyle was not good at her lessons when at school．

  C．Susan Boyle became famous because of her appearance．

  D．Simon Cowell didn't think Susan Boyle a good singer at the time sight．

5.What can we learn from Susan Boyle's success?

A．It's never too old to learn．      

B．It's easier to succeed at the age of 47．

C．If you have a dream，try to make it come true!

D．If you are not able to study well，to be a singer instead．

It is easy for us to tell who our family members are, but do plants recognize(识别) their own family? Some do, scientists say, according to a report by Science News in early 2010.

Guillermo P. Murphy and Susan Dudley are two plant scientists from McMaster University in Hamilton, Canada. They did a few experiments with Jewelweeds, a kind of flower that grows in wet, shady spots. They found that the flowers seem to know their own flower family. In their experiments, Murphy and Dudley planted jewelweeds in pots with either siblings or strangers.

When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response(反应)suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food. Jewelweeds usually grow in the shade, where sunlight is not enough.

When jewelweed seedlings(幼苗)were planted with siblings, they grew a few more branches than they usually would if they were alone – but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete.

According to the Science News report, Jewelweeds are not the first plants that plant scientists have studied for family recognition. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach – where it may be hard to get fresh water. In that experiment, the scientists found that when sea rockets were planted with siblings, they tolerated each other. But when they were planted with strangers, the sea rockets reacted by working extra hard to grow lots of roots.

Dudley says this just because sea rockets, on the beach, get plenty of sun but struggle for water – so when they’re threatened, they compete for water. Jewelweeds have plenty of water but have to compete for sunshine, so they grow more leaves.

1. What does the underlined word siblings mean?

A．Flowers come from foreign countries.

B．Plants growing in different environments.

C．Flowers planted with lots of strangers.

D．Plants that are the same kind.

2. In the text, the writer mentioned the experiments of Jewelweeds to         .

A．make a comparison                      B．introduce a topic

C．describe a pretty flower                  D．build a new theory

3. According to the passage, flowers planted alone will         .

A．grow more leaves than those planted in groups

B．become taller than those with more branches

C．grow fewer leaves than those planted with strangers

D．become ill easily because they can’t get enough shade

4. What can be the best title for the passage?

A．New Discoveries about Plants

B．How Plants Compete with Each Other

C．Family Recognition among Plants

D．Jewelweeds and the Great Lakes Sea Rockets