These are ________.

[　　]

A．the fruit's picture

B．the fruit picture

C．the pictures of the fruit

These are　　　　 ．

A．the fruit’s picture   

B．the fruit picture

C．the pictures of the fruit   

D．the picture of the fruit

 

You are probably familiar with the saying：An apple a day keeps the doctor away. A recent research carried out by the Chinese University of Hong Kong may change the saying:

An apple a day may keep aging away.

The research chose fruit flies(果蝇), as they share many genes(基因)with humans. The fruit flies were either fed normally or had an apple extract(浓缩物) added to their diet.

It turned out that those fruit flies that were given apple extract lived about 55 days—five days longer than the flies that were normally fed. The research group also found it easier for the flies to walk，climb and move about as they aged.

According to the result, the researchers believed that the antioxidants(抗氧化剂) in the apple extract helped clean up dangerous chemicals(化学物质) that cause illnesses，as well as aging.

In another study，researchers examined diets of thousands of women. They discovered that those who regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke.

The apples’ genetic code(遗传密码) was discovered recently. It allows scientists to develop nicer and healthier fruits. Researchers are already using the information to grow a kind of apples full of antioxidants that can keep eyes and joints healthy and protect humans against heart illnesses and cancer.

Apples that kill the desire(欲望) to eat could also be produced, with the first“extra-healthy’’apples on supermarket shelves within just four or five years.

The team that keeps studying apple DNA includes 100 scientists from five countries. Their research also suggests that around 65 million years ago, when dinosaurs began to die off the plant，which would finally become today’s apple tree, experienced a great genetic change. The number of many of its genes doubled. The extra genes allowed the apple to get used to worse conditions and go through a different development from peaches，strawberries and other related fruits.

1.Why were fruit flies used for the research?

A.Because they have a similar diet to humans.

B.Because they have a history as long as apples.

C.Because they share a lot of genes with humans.

D.Because they feed on nothing but apple extract.

2.What result did the researchers find out?

A.Apples produce chemicals that can change human genes.

B.Apples have antioxidants that kill chemicals that cause aging.

C.Apples are rich in vitamins that are needed in humans’bodies.

D.Apples produce chemicals that make apples taste more delicious.

3.What happened to apples around 65 million years ago according to the research?

A.Their genes stopped their development as the environment got worse.

B.Their genes became twice in number but they finally died off like dinosaurs.

C.They experienced a great genetic change making them used to worse conditions.

D.They went through a similar development to peaches, strawberries and other related fruits.

4.What can we infer(推断)from the passage?

A.Eating apples may bring us more advantages than we might believe before.

B.People who have the habit of eating apples don’t need to see a doctor.

C.Apples that kill the desire to eat are already available in supermarkets now.

D.People will eat apples instead of peaches and strawberries from now on.

 

阅读短文，根据其内容，选择最佳选项完成下列各题。（10分）
Paragraph 1: Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds; (2) citrus(柑桔) fruits and tomatoes; (3) potatoes and other fruits and vegetables; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal(谷物), rice is also in this kind of food; (7) butter, or something like butter.
Paragraph 2: People in different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at 11 o’clock at night. The important thing is what you eat every day.
Paragraph 3: There are two problems, then, in feeding the large number of people on earth. The first is to find some ways to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy.
【小题1】From the first paragraph we know noodles belong to a kind of ______ food.

A．vegetable

B．fruit

C．meat

D．cereal

【小题2】According to the scientists, which of the following groups is the healthiest for your lunch?

A．chicken, apples, cereal, cabbages	B．potatoes, rice, bread, carrots
C．oranges, bananas, fish, tomatoes	D．beef, pork, fish, milk

【小题3】People in different places of the world ______.

A．have the right kinds of food to eat	B．cook their food in the same way
C．have their meals at the same time	D．eat food in different ways

【小题4】Which of the following is NOT true?

A．People in some places don’t have enough to eat.

B．There are too many people in the world.

C．One of the problems is that no one is hungry.

D．The scientists are trying to make people grow to be strong and healthy.

【小题5】If there is Paragraph 4, what do you think is going to be talked about?

A．When people eat their meals.

B．What to do with the two problems.

C．How to cook food in different ways.

D．Why people in different places eat different kinds of food.

One day a red rose blossomed(开花)in a forest. A pine tree not far away said: "What a beautiful flower. I wish I could he that lovely.
The rose said: "I am the mostbeautiful plant in this forest. "
Then the rose looked at a cactus（仙人掌）and said_: " Look at that ugly plant. It is full of thorns (刺)"
The pine tree said： "Red rose, you have thorns, too. " Sometimes, the rose would look at the cactus and say _: "This plant is useless. How sorry I am tobe his neighbor. "
Summer came and the plants and animals needed water, but no rain fell. One day the rose saw birds stick(刺) their beaks(鸟嘴)into the cactus and then fly away. The roseasked what the birds were doing. The pine tree explained thatthe birds got water from the cactus. The pine tree told the rose_: "You can also drink from it. The birds can bring water to you if you ask the cactus for help. "
The rose fell ashamed(羞愧的), but asked the cactus for help. The cactus kindly
agreed and the birds filled their beaks with water for the rose’s roots(根).
So the rose learned：never judge(判断) anyone by appearance(外表).
【小题1】At the beginning of the story the rose thought that the cactus was    .
A. ugly   B. lovely  C. beautiful
【小题2】Both the rose and the cactus have_______.
a .thorns  B. leaves  C. fruit
【小题3】The underlined word "useless" in this passage means "____ " in Chinese
A. 无营养的 B. 不友好的 C. 无用的
【小题4】Which of the following is True according to the story?
A. The birds could get water from the pine tree.
B. The rose got water from the cactus at last.
C .The pine tree wanted to get water from the rose.
【小题5】What’s the best title (标题) for the passage?
A. Plants and birds
B. Ways of growing roses
C. Appearance isn't everything.