What do you think of stress? Is it a good thing or a bad thing?
Most of the students think stress can do harm (伤害)   46  them in some ways. There’s a story about a teenager in a middle school. He even   47  his study because of the stress from school and family. We also usually   48  that someone turns to psychological doctors because of heavy working stress. There is no doubt (疑问) that some people think stress is a dangerous wolf.
On the other hand, other people argue that stress is not a bad thing. They   49  stress can produce momentum (动力）in the end. For them, right attitude and action can reduce (减少) stress and make it   50 . When I was a child, my mom always pushed me to study hard. She wished I could go to an ideal   51  for further education. I experienced stress for the first time. To a poor family, I deeply knew   52   was not easy for us, and everything my mom did to me was just to hope I could live a better life in the future.   53  the saying goes, “No pains, no gains.” So I did what my mom expected because I didn’t want to let her down. At last, I did measure up (达到标准）to my mom’s expectation and go to college   54 . Thanks to my mom’s push! Thanks to the stress! In this way, I don’t think stress is a bad thing.
Overall, stress is not a bad thing in   55 . The key is how we deal with it.

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.
【小题1】Why were fruit flies used for the research?

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.

1.What can’t children learn in Home for Children?

A. Music          B. Drawing pictures      C. Computer        D. English

2.Mrs Green can send her daughter Lucy to Home for Children except___________ .

A. 5 :00 p.m. on Friday                     B. 6 :00 p.m. on Sunday 

C. 7 :00 p.m. on Wednesday                  D. 4 :00 p.m. on Monday

3.Home for Children will be open for           in a week .

A. 4 hours          B. 8 hours              C. 20 hours        D. 24 hours

4.Who can do homework and learn in Home for Children ?

A. Mike , a school boy of 6                   B. Mary, an 11-year-old girl

C. Cathy, an experienced teacher               D. Linda, a girl of 17 years old

5.Which of the following is TRUE according to the information above ?

A.Home for Children is on the Second Street

B.Home for Children is open at weekends.

C. You can call Mr Zhang for more details.

D.After school parents must pick up their children and send them to Home for Children.