Imagine having an ear made out of an apple. It seems like a crazy idea from a horror movie. But it could happen in the near future.
Canadian biophysicist, Andrew Pelling used an apple to grow a human ear. He thinks fruit and vegetables can be used to cheaply repair human body parts in the future.
Scientists have been trying to grow organs( 器官) in labs to replace our old ones. But it is a hard Job. For example, liver cells( 肝细胞)can grow in a lab, but the cells still need things like blood vessels( 血管) to actually work. These things have to grow inside a scaffold(支架) In the past, scientists have used manmade materials, animal parts and even dead people as scaffolds. But that has proved to be difficult and expensive.
Pelling and his team, however, found the apple to be a cheap and easy to use scaffold.
They first out an apple into the shape of an ear. Then they used a special way to take out the apple’s cells and make it a scaffold. The team then added human cells to the apple and watched it grow
You can implant these scaffolds into the body, and the body will send in cells and a blood supply and actually keep these things alive, “Pelling said during a Ted Talk speech.
The team put the apple scaffold inside a living mouse and the mouse’s cells slowly took over the pieces of apple.
Now Pelling is thinking of other fruit, plants or vegetables to use,
He says that the shape of flower petals could be perfect for repairing skin. And asparagus(芦苇) could fix a broken spine(脊柱).
Now, Pelling and his team are trying hard to put these crazy ideas into reality
1.Pelling’s idea of manmade ear seems crazy because he used ________ as scaffolds.
A.animal parts B.dead people
C.manmade materials D.ordinary apples
2.The underlined word “implant” in Paragraph 7 probably means ________.
A.pick B.put C.produce D.protect
3.Which is the right order of making an ear out of an apple according to the passage
a. Put the apple scaffold inside a mouse.
b. Add human cells to the apple scaffold.
c. Cut an apple into the shape of an ear.
d. Make the apple ear a scaffold.
e. Take out the apple’s cells in a special way.
A.abcde B.bedae C.cedba D.cdaeb
4.From the last three paragraphs, we can infer that Pelling will experiment with other fruit, plants or vegetables ________.
A.to make human ears B.to repair burnt skin
C.to fix a broken spine D.to make human body parts
九年级英语阅读单选中等难度题
Imagine having an ear made out of an apple. It seems like a crazy idea from a horror movie. But it could happen in the near future.
Canadian biophysicist, Andrew Pelling used an apple to grow a human ear. He thinks fruit and vegetables can be used to cheaply repair human body parts in the future.
Scientists have been trying to grow organs( 器官) in labs to replace our old ones. But it is a hard Job. For example, liver cells( 肝细胞)can grow in a lab, but the cells still need things like blood vessels( 血管) to actually work. These things have to grow inside a scaffold(支架) In the past, scientists have used manmade materials, animal parts and even dead people as scaffolds. But that has proved to be difficult and expensive.
Pelling and his team, however, found the apple to be a cheap and easy to use scaffold.
They first out an apple into the shape of an ear. Then they used a special way to take out the apple’s cells and make it a scaffold. The team then added human cells to the apple and watched it grow
You can implant these scaffolds into the body, and the body will send in cells and a blood supply and actually keep these things alive, “Pelling said during a Ted Talk speech.
The team put the apple scaffold inside a living mouse and the mouse’s cells slowly took over the pieces of apple.
Now Pelling is thinking of other fruit, plants or vegetables to use,
He says that the shape of flower petals could be perfect for repairing skin. And asparagus(芦苇) could fix a broken spine(脊柱).
Now, Pelling and his team are trying hard to put these crazy ideas into reality
1.Pelling’s idea of manmade ear seems crazy because he used ________ as scaffolds.
A.animal parts B.dead people
C.manmade materials D.ordinary apples
2.The underlined word “implant” in Paragraph 7 probably means ________.
A.pick B.put C.produce D.protect
3.Which is the right order of making an ear out of an apple according to the passage
a. Put the apple scaffold inside a mouse.
b. Add human cells to the apple scaffold.
c. Cut an apple into the shape of an ear.
d. Make the apple ear a scaffold.
e. Take out the apple’s cells in a special way.
A.abcde B.bedae C.cedba D.cdaeb
4.From the last three paragraphs, we can infer that Pelling will experiment with other fruit, plants or vegetables ________.
A.to make human ears B.to repair burnt skin
C.to fix a broken spine D.to make human body parts
九年级英语阅读单选中等难度题查看答案及解析
Imagine having an ear made out of an apple. It seems like a crazy idea from a horror movie. But it could happen in the near future.
Canadian biophysicist Andrew Pelling used an apple to grow a human ear. He thinks fruit and vegetables can be used to cheaply repair human body parts in the future.
Scientists have been trying to grow organs(器官) in labs to replace our old ones. But it is a hard job. For example, liver cells(肝细胞) can grow in a lab, but the cells still need things like blood vessels(血管)to actually work. These things have to grow inside a scaffold (支架).
In the past, scientists have used man-made materials, animal parts and even dead people as scaffolds. But that has proved to be difficult and expensive.
Pelling and his team, however, found the apple to be a cheap and easy-to-use scaffold.
They first cut an apple into the shape of an ear. Then they used a special way to take out the apple's cells and make it a scaffold. The team then added human cells to the apple, and watched it grow.
“You can implant these scaffolds into the body, and the body will send in cells and a blood supply and actually keep these things alive.” Pelling said during a Ted Talk speech.
The team put the apple scaffold inside a living mouse and the mouse's cells slowly took over the pieces of apple.
Now Pelling is thinking of other fruit, plants or vegetables to use.
He says that the lower petals could be perfect for repairing skin. And asparagus(芦笋) could fix a broken spine(脊柱).
Now, Pelling and his team are trying hard to put these crazy ideas into reality.
1.Pelling’s idea of man-made ear seems crazy because he used _______ as scaffolds.
A.animal parts B.dead people C.man-made materials D.ordinary apples
2.The underlined word “implant” in Paragraph 7 probably means _______.
A.pick B.put C.produce D.protect
3.From the last three paragraphs, we can infer that Pelling will experiment with other fruit, plants or vegetables _______.
A.to make human ears B.to repair burnt skin
C.to fix a broken spine D.to make human body parts
九年级英语阅读单选简单题查看答案及解析
Imagine having an ear made out of an apple. It seems like a crazy idea. But it could happen in the near future.
Canadian biophysicist Andrew Pelling used an apple to grow a human ear. He thinks fruit and vegetables can be used to cheaply repair human body parts in the future.
Scientists have been trying to grow organs in labs to replace our old ones. But it‘s a hard job. In the past, scientists have used man-made materials, animal parts and even dead people as scaffolds（支架）. But that has proved to be difficult and expensive.
Pelling and his team, however, found the apple to be a cheap and easy-to-use scaffolds.They first cut an apple into the shape of an ear. Then they used a special way to take out the apple‘s cells（细胞）and make it a scaffold. The team then added human cells to the apple, and watched it grow. “You can implant（移植）these scaffold into the body, and the body will send in cells and a blood supply and actually keep these things alive, ” Pelling said during a Ted Talk speech.
The team put the apple scaffold inside a living mouse and the mouse’s cells slowly take over the pieces of the apple.
Now Pelling is thinking of the other fruit, plants or vegetables to use.
1.Andrew Pelling is a scientist who studies
A.body and organs B.biology and organ
C.physic and body D.biology and physics
2.What did Pelling and his team use as scaffolds?
A.Fruits. B.Animals. C.dead people D.man-made
3.According to Paragraph 4, the right order is________.
①Make the apple a scaffold.
②Cut an apple into the shape of an ear.
③Implant this scaffold into the human body.
④Add human cells to the apple scaffold.
A.①④②③ B.②①④③ C.②①③④ D.④①③②
4.How will the body keep the implanted scaffolds alive?
A.By repairing the scaffolds. B.By replacing the scaffolds.
C.By taking over the scaffolds. D.By sending in cells and a blood supply
5.What‘s the best title of the passage?
A.Scaffolds and cells B.Organs and cells
C.Organs Made of Apples D.Scientists and apples
九年级英语阅读单选困难题查看答案及解析
Imagine this. There's an apple and a piece of cake on a table. Which one would you like? The delicious cake or the healthy apple? A bestseller, Willpower: Rediscovering Our Greatest Strength, suggests that willpower(意志力)is the ability to make decisions that are better for us in the long term, rather than in the short term.
Here is a famous experiment in the book: The Marshmallow Test. In 1972, Professor Walter Mischel tested the willpower of 600 four-year-olds to six-year-olds. In the experiment, each child was left alone in a room for fifteen minutes with a marshmallow(棉花软糖）on a table in front of them. They were given two choices: they could either eat it or, if they waited fifteen minutes, they'd be given a second one(and then they could eat both).
So, what did the kids do? Well, as you can imagine, 70% ate the first marshmallow within the fifteen minutes. But the other 30% showed willpower—they controlled themselves and waited for the second marshmallow. But then Mischel discovered something really interesting. Twenty years later, he got in touch with the children, who, by then, were in their early twenties. And he found that those who'd shown strong willpower were getting better marks at university and were more popular.
Willpower is like a muscle（肌肉), and the more you exercise it, the stronger it gets.
So, if you do daily "self-control exercises", such as making your bed or brushing your teeth, you'll improve your overall willpower. And daily willpower exercises will help you with those bigger goals, such as studying for an exam or training for a marathon.
Be careful though. Just like any muscle, your "willpower muscle" can get tired. If you've had to do lots of things that require willpower, take a break or give yourself a treat.
That way, you’ll build up your willpower again.
And one last thing, the writer mentions people who learn foreign languages usually have a lot of willpower. So, congratulations!
1.How many children got two marshmallows in the Marshmallow Test in 1972?
A.180. B.240. C.420. D.600.
2.In Paragraphs 2&3, the famous experiment explains __________.
A.more kids have stronger willpower
B.willpower influences people's lives greatly
C.how people practice children's willpower
D.marshmallows can help improve willpower
3.The writer probably agrees that ________.
A.all the language learners have stronger willpower
B.will power can't be improved by doing some daily things
C.young kids don't need to practice willpower like grown-ups
D.people with strong willpower can achieve their goals more easily
4.According to the passage, people who ________ might have strong willpower.
A.do regular piano practice every day B.give up morning running halfway
C.eat as much junk food as they like D.usually get up late on the cold morning
九年级英语阅读单选中等难度题查看答案及解析
Can you imagine that someone could cure all the diseases in the world? It seems like an impossible job， But Priscilla Chan wants to make it come true.
Chan， 31， is from the United States. Many people may know her as a wife of Mark Zuckerberg(扎克伯格)， the founder of Facebook. But Chan herself has done a lot to help people.
Chan and Zuckerberg said in September that they would give out $3 billion(十亿)， that’s about ¥20 billion in the next 10 years to help deal with all of the world’s diseases. As a doctor for children， Chan was a big driver in this decision. “By investing(投资) in science today， we hope to build a future in which all of our children can live long and meaningful lives，” she said.
She cares about not only children’s health but also their education. Before becoming a doctor， Chan taught science to the 4th and 5th graders at a school in California for a year. That year she started a project called The Primary School. It provides education for children from kindergarten to the 12th grade.
Chan herself knows how important education is to a child. She has a Chinese father and a Vietnamese mother. Her parents didn’t come to the US with much. But they worked hard to make sure Chan and their other two daughters had the best opportunities(机会) possible. Chan went to Harvard University in 2003 and now works as a doctor.
“I realized that I was so lucky to be what I was，” said Chan. “It drives me to make sure others， no matter what background they have， can have their opportunities， to reach their dreams and their full potential(潜能).”
1.How much money will Chan and Zuckerburg give out in the next 10 years?
A. 3 billion yuan B. 3 billion dollars
C. 20 billion dollars D. 10 billion yuan
2.The project that Chan started provides education for .
A. only kids in kindergarten
B. primary school students
C. the 4th and 5th graders at school
D. children from kindergarten to the 12th grade
3.What does Chan really want to do to help others?
A. Give money to poor children.
B. Cure some of the diseases in the world.
C. Invest in education to make more money.
D. Provide opportunities for others to reach their dreams.
4.What’s the best title of the passage?
A. Chan’s dream B. Chan’s family
C. Chan’s work D. Chan’s quality
九年级英语阅读理解中等难度题查看答案及解析
---Would you like an apple pie for lunch? I'll make it for you．
---Honey， you_______．Let’s go out to have something different．
A. mustn’t B. needn’t
C. can’t D. shouldn’t
九年级英语单项填空简单题查看答案及解析
—What do you think of the apple?
—It’s nice. I’d like to have_____.
A．some other B．another
C．others D．other
九年级英语单项填空中等难度题查看答案及解析
I like the salad made ______ apples and strawberries and the bread made ________ corn.
A.of, of B.of, from C.from, from D.from, of
九年级英语单选题中等难度题查看答案及解析
Most of us have made an exercise plan， but only a few can follow it． WebMD（an American website） has listed the following tips for making exercise a habit in your life．
1.Do activities you enjoy．
Remember， there's no rule that says you have to go to a sports centre or buy equipment like swimming suits． Many types of activities， such as push﹣up（俯卧撑）， can be done whenever it is rainy or snowy．
2.Exercise after work．
Don't go home first． Few people are so motivated（有动力的） that they will go out again and exercise after they go home and change clothes．
3.Exercise even when you are tired．
Tiredness is not an excuse． While exercising， you breathe deeply and your body makes better use of the oxygen exchange． Then， you will feel energetic．
4.Notice that you are better than before．
It's great when your clothes fit better， you can lift heavier things or take exercise longer． There's something good too， like getting a good night's sleep or thinking more clearly．
5.Walk with a pedometer（计步器）
Not everyone can start out with 10，000steps a day． Use a pedometer， and find out your daily steps． And then， try your best to walk 300extra steps each day． Finally， you can reach 10，000steps a day．
阅读以上信息，用恰当的单词完成下面的短文，每空一词．
According to WebMD， there are some easy ways to make exercise a habit． First， when you do activities you enjoy， such as push﹣up， you don't have to consider1. conditions． Second， the best way is to exercise before going home because most people are unwilling to go out again and exercise after2.clothes at home． Third， keep on exercising even though you feel tired． That's because taking a 3.breath will help your body make better use of oxygen exchange． Moreover， pay attention to your 4.in exercising， like losing some weight， exercising longer， etc． Finally， walk with a pedometer and find out your daily steps． Then，5. the number of steps day by day． Your goal of 10，000steps a day can be achieved．
九年级英语语法填空困难题查看答案及解析
Most of us have made an exercise plan， but only a few can follow it． WebMD（an American website） has listed the following tips for making exercise a habit in your life．
1.Do activities you enjoy．
Remember， there's no rule that says you have to go to a sports centre or buy equipment like swimming suits． Many types of activities， such as push﹣up（俯卧撑）， can be done whenever it is rainy or snowy．
2.Exercise after work．
Don't go home first． Few people are so motivated（有动力的） that they will go out again and exercise after they go home and change clothes．
3.Exercise even when you are tired．
Tiredness is not an excuse． While exercising， you breathe deeply and your body makes better use of the oxygen exchange． Then， you will feel energetic．
4.Notice that you are better than before．
It's great when your clothes fit better， you can lift heavier things or take exercise longer． There's something good too， like getting a good night's sleep or thinking more clearly．
5.Walk with a pedometer（计步器）
Not everyone can start out with 10，000steps a day． Use a pedometer， and find out your daily steps． And then， try your best to walk 300extra steps each day． Finally， you can reach 10，000steps a day．
阅读以上信息，用恰当的单词完成下面的短文，每空一词．
According to WebMD， there are some easy ways to make exercise a habit． First， when you do activities you enjoy， such as push﹣up， you don't have to consider1. conditions． Second， the best way is to exercise before going home because most people are unwilling to go out again and exercise after2.clothes at home． Third， keep on exercising even though you feel tired． That's because taking a 3.breath will help your body make better use of oxygen exchange． Moreover， pay attention to your 4.in exercising， like losing some weight， exercising longer， etc． Finally， walk with a pedometer and find out your daily steps． Then，5. the number of steps day by day． Your goal of 10，000steps a day can be achieved．
九年级英语语法填空困难题查看答案及解析