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.
九年级英语阅读理解简单题
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 get 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.
九年级英语阅读理解中等难度题查看答案及解析
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.
九年级英语阅读理解中等难度题查看答案及解析
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.
九年级英语阅读理解困难题查看答案及解析
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.
九年级英语阅读理解简单题查看答案及解析
阅读下列内容,从每小题所给的四个选项中选出一个最佳答案
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 feed on nothing but apple extract.
D. Because they share a lot of genes with humans.
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 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.
九年级英语阅读理解简单题查看答案及解析
You may know the saying: An apple a day keeps the doctor away. A recent study by the Chinese University of Hong Kong has discovered another saying: An apple a day keeps old age away.
The study involved fruit flies(g果蝇), as they share many genes(基因) with humans. Researchers gave one group of fruit flies normal food, and another group of fruit flies got the same food including apple.
The results showed that flies that ate apple lived an average of 55 days longer than the flies that didn’t eat apple. The study also found that apple-eating flies were more able to walk, climb and move about as they became old, the Journal of Agricultural and Food Chemistry reports.
The researchers believe that the antioxidants (抗氧化剂)found in apples are good for health.
In another experiment, researchers studied the diets of thousands of women. They found that those women who often ate apples were 20 percent less likely to have heart disease.
Scientists have recently discovered the apple’s genetic code(基因代码). This allows scientists to make new kinds of fruit that are healthier. Researchers are already using this information to grow apples with added antioxidants. Antioxidants help to keep eyes and joints (关节)healthy and protect against heart attacks and cancer.
Apples that help people lose weight may be in supermarkets in just four or five years. They are said to be “extra healthy” apples that can stop people from overeating.
1.Fruit flies were used in the research because_______________ .
A. they love to eat apples
B. they share similar genes with humans
C. they are easy to catch
D. they can live longer
2.By studying the diets of many women, researchers ___________ .
A. proved apples were good for people’s health.
B. found they are healthier than men
C. helped them to lose weight successfully
D. discovered the genetic code of the apple
3.From the story, we can infer(推测) that _________________.
A. women like to eat apples more often than men
B. people who eat apples are easier to have heart disease
C. scientists are studying a new type of apples
D. apples’ genetic code is similar to other fruits
4. You may find the passage in ____________ .
A.a science magazine B. a guidebook
C. a picture show D. a storybook
九年级英语阅读理解困难题查看答案及解析
You might have heard the age-old saying "An apple a day keeps the doctor away". But a new study shows that taking and sharing a________a day might also bring some health benefits(好处).
The study is carried out by the UK scientists from Lancaster University and the University of Sheffield. The results show that people who take part in "a-photo-a-day" activity feel________in their health.
A group of people–aged between 20 and 60–took part in the________ .The scientists took notes of those people's photos, their words under the photos, and the online talks they had with other photo lovers every day. The last part of the study was a phone talk. Each person________about their stories as being part of the study.
These practices________a simple way of making a good change and getting into the habit of doing something new. Just as one said, "It's really good to take that five minutes every day to do something __________and different. It gives me something to look for and I________doing so." The scientists say this activity has the same results to other daily practices such as running and drawing.
On the social side, people keep in touch with family members and friends________they talk about the photos. Taking a photo also leads to other activities, such as walking or climbing, which make people go out of the________sometimes and think about life and the world. "I do not feel_________ any more when taking photos." Another person said.
1.A.story B.book C.photo D.talk
2.A.weaker B.stronger C.better D.worse
3.A.match B.sports C.club D.study
4.A.worried B.talked C.cared D.dreamed
5.A.show B.make C.ask D.doubt
6.A.similar B.interesting C.boring D.dangerous
7.A.hate B.fail C.mind D.enjoy
8.A.what B.when C.why D.how
9.A.forests B.seas C.houses D.fields
10.A.lonely B.happy C.afraid D.lucky
九年级英语完型填空困难题查看答案及解析
Here are four famous festivals aroud the world .Are you familiar with all of them?
Christmas is on 25 December.On the night before the festival ,young children hang up their stockings for the gift that Santa Clause gives .This festival is for the birth of Christ.All the people like this festival.
In North America ,Halloween is on the last day of October . Families make lanterns from pumpkin(南瓜).In the evening , children dress up well and go form house to house to ask for sweets or have parties at home.
Mid-autumn Festival is a Chinese festival in the autumn . People wait to see a big around moon in the night sky . They eat moon cake and light lanterns .
The longest day in the northern hemisphere(北半球)is on 21 or 22 June each year .
This is the middle of summer .There is a flower festival for four days each June in California , USA .There is a parade (游行)and people go to flower fields to look at the flowers.
1.Christmas is in ______.
A.January B.June C.October D.December
2.Christmas is for ______.
A.Santa Clause B.Christ
C.Christmas trees D.lights
3.People make lanterns from pumpkins on _____.
A.the Mid-Autumn Festival B.Halloween
C.Christmas Day D.the flower festival
4.The food for Mid-Autumn Festival is ______.
A.rice B.noodles C.mooncake D.turkey
5.In the middle of summer ,there is a _____festival in California .
A.flower B.parade C.gift D.summer
九年级英语阅读理解中等难度题查看答案及解析
- Are you familiar_______ Tongli? - No, the place is unfamiliar_______ me.
A. with; with B. with; to C. to; to D. to; with
九年级英语单项填空简单题查看答案及解析
Are you familiar _____________ the rules of baseball?
A. of B. from
C. to D. with
九年级英语单项填空简单题查看答案及解析