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 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.
We don’t know how different our future will be in the future.We can only try to imagine it.
At first we think about human relationship.In the year 2050, we will use computers almost every day.We will be making new friends through the Internet—even our husbands or wives will be met in this way.It will be much faster and easier for us.On the other hand, our relationships with people won’t be as important as they are today—we will feel a little lonely.
Computers will also help us in many other activities in 2050.For example, they will be used by the children at school to make their learning easier.In addition, there will be much more other machines which will play a similar role as computers, like robots which will do the homework for us.
Spending holidays will also be completely different.Traveling to other planets or to the moon will be available for everyone.Means(方式) of transport will, of course, change, too.We will be using solar-powered cars, which will be much cleaner.
We could expect that the faster technological progress would lead to a more polluted environment.But it isn’t true.We will pay more attention to protecting the environment.And, scientists will probably find cures for many dangerous diseases, like cancer or AIDS.Therefore, our surroundings as well as health will be in better condition.
Although we can’t predict(预测) the exact changes which will be made in the world, we often think about them.We worry about our and our children’s future; we have expectations, hopes as well as fears.But I think we should be rather sanguine(乐观的) about our future.We should be happy and believe good things will happen.
1.Why will people probably feel a little lonely in 2050?
A.Because the number of people will become much smaller．
B.Because there will be less face-to-face communication
C.Because people won’t like making friends with each other
D.Because people won’t communicate with each other much often．
2.According to the passage, which of the following will happen in 2050?
A.The relationship between people will be more important than today.
B.The way of spending holidays will be the same as that of today.
C.It won’t be difficult for people to travel to other planets.
D.Our environment will be much more polluted with a growing number of cars.
3.What does the passage mainly talk about?
A.How people will communicate in the year 2050.
B.What our life will be like in the year 2050.
C.How people will travel and spend their holidays in the year 2050.
D.What high technology will appear in the year 2050.
Time flies.Your time in junior high school will come to an end in a few months.Let’s look back over the last three years.What were the highs and lows?
For Zhang Xiaomeng, a senior high school girl from Jiangsu, meeting her best friend Hua Xuan was the best part of her time at junior high school.They went to class together, had lunch together, and even went to the washroom together.Having one or two best friends is important, said Xu Zheng, a teacher from Jiangsu.“Students have secrets.They don’t want to tell their parents,”Xu added.However, being too rebellious (叛逆的) in junior high is the biggest regret for Liu Anqing, a senior high school student from Fujian.“I didn’t listen to my parents.I quarreled with my mother every week,” said Liu.“I wish I could go back to that time and get on well with them.” Time also needs to be taken care of.Zhang Zihua, 15, from Shanxi, thought he had plenty of time to prepare for the big exam at the end of Junior 3.Then one day, he was told: “The exam is in 100 days.” “We need a strong knowledge base to pass the exam.But I didn’t care about it,” said Zhang.Gu Xiaoli, a teacher from Jiangsu, said that it’s never too late to catch up.“No matter your regrets about wasted time, you can always pick things up from now,” said Gu.
1.How many students shared their ideas in the passage?
A.Three. B.Four. C.Five. D.Six.
2.The underlined word “regret” in Paragraph 2 most probably means a feeling of ______.
A.happiness B.surprise C.anger D.sadness
3.Which of the following is true about Liu Anqing?
A.She quarreled with her parents every day when she was a little girl.
B.Her parents didn’t like her at all.
C.She didn’t do well in her study at junior high school.
D.She didn’t get on well with her parents when she was in junior high school.
4.What’s wrong with Zhang Zihua?
A.He didn’t pass the exam.
B.He had no good friends.
C.He didn’t get ready for the exam.
D.He didn’t get on well with his parents and teachers.
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A.Beijing Hotel. B.Green Hotel.
C.Both. D.Neither.
2.If we want to set off around National Day, which departure date should we choose?
A.June 8, 2015. B.July 29, 2015.
C.August 30, 2015. D.September 30, 2015.
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A.9:00 a.m., Monday B.9:00 p.m., Thursday
C.9:00 a.m., Saturday D.9:00 p.m., Sunday
4.When can we save money to visit Beijing?
A.In June. B.In July. C.In August. D.In September.
5.According to the ad, which of the following is true?
A.This ad is given by a Beijing travel company.
B.Green Hotel is in the center of Beijing.
C.We can save ￥500 leaving in late August instead of late September.
D.We can stay in Beijing for four days and five nights.
A wise man was walking from one town to another with a few of his followers, and they happened to pass a lake.So they stopped there to for a while, and the wise man said to one of his followers, “I am very .Could you please me some water from the lake?”
The follower walked to the lake the wise man requested.Some people were washing clothes in the water, and right at that moment, several carts (手推车) started crossing the lake. , the water became very muddy.Then he went back and told the wise man that the water was very muddy and not to drink.After they had rested for about half an hour, the wise man again asked the follower to go back to the lake and get him some water to drink.As requested, the follower went to the lake.This time he found that all the mud had to the bottom.The water was very and looked fit to drink.So he his water bottle and took it to the wise man.
The wise man took the water bottle and drank, then looked up at the follower.“See what you did the water clean?” he said.“You let it be for a while and the mud settled down on its own, you could get some clear drinking water.Your mind can also be like that lake when it is by something.If you just let it be and give it a little time, it will most likely settle down on its own putting in any effort at all to it.”
1.A.rest B.look C.watch D.see
2.A.hungry B.thirsty C.happy D.sad
3.A.get B.give C.take D.bring
4.A.while B.before C.as D.until
5.A.However B.Instead C.In addition D.As a result
6.A.fit B.able C.important D.interesting
7.A.different B.same C.other D.left
8.A.gone B.been C.settled D.lived
9.A.dirty B.clear C.fresh D.sweet
10.A.got B.finished C.reached D.filled
11.A.making B.to make C．made D.had made
12.A.so that B.in order to C.because D.when
13.A.woken B.left C.disturbed D.given
14.A.without B.with C.after D.like
15.A.prevent B.calm C.protect D.fix
—I did badly in my English exam.How unlucky I am!
— .Cheer up! Everything will be OK.
A.Congratulations B.That’s great
C.Sorry to hear that D.Well done
