You have to be used to__________more vegetabl...

You have to be used to__________more vegetables from now on because you used to__________too much meat.

A.having; having B.having; have C.have; having

九年级英语单选题中等难度题查看答案及解析

Experts in nutrition suggest that we should eat at least five different kinds of vegetables and fruit a day. They are very necessary for our health and help our bodies work well. They can help reduce the risk of getting ill. There are a lot of vegetables and fruit to choose from and they taste delicious. 1.

It's easy to buy our food from the local supermarket, so why do we go to the trouble of growing our own? Here are several good reasons：

2. You can pick and eat it at once. When you have tried it, you will agree that vegetables and fruit that are eaten straight from the garden taste better than anything you can buy in a supermarket.

You may want to cut down on your “food miles”—the distance that a product has travelled before it reaches your kitchen. Many food packages are flown halfway across the earth. 3.

Homegrown food is likely to be healthier. Food producers often use fertilizers and pesticides which can end up in your food. If you grow your own, things are different. 4. You might also choose to grow some traditional vegetables and fruit. These often have more important things that keep you healthy.

5. And you can grow your own even if you only have a small backyard. Some food can grow well in pots, including tomatoes, potatoes and carrots. You can recycle plastic bottles and cups to grow something. Just make sure there are holes for drainage and a small plate under them to catch drops of water.

A.Best of all, you can grow your own!

B.That's not so good for you, or for the planet.

C.Food that you grow yourself is always fresh.

D.If you have a large garden, growing your own is easy.

E.You can control what goes on and into the food you eat.

九年级英语补全短文5选5简单题查看答案及解析

现在社会的年轻人

In most people's eyes, the young may not have 1. influence on the world. However, over the years, teenagers have invented many 2.(wonder) things and changed the ways people do things as well.

For e3., fourteen-year-old Eliott Sarray from France invented a gardening robot called Bot2 karrot. The robot can help people take care 4. a small vegetable garden. Brooke Martin, an animal lover, who 5.(miss) her dog when she was away, invented Icpooch. With the help of Icpooch, pet owners can check on their pets at 6.(one) from anywhere in the world just by using a smart­phone. What's more, Robert Saunt invented Game Blox. The controller can be used with four of the 7.(much) popular game consoles(控制台). It was just b8. that he was tired of buying or borrowing different video­game controllers for each game console.

Kids all over the world find 9.(way) to solve problems every day. Who knows? Maybe next time you have a problem, you will come up with the next 10.(amaze) idea.

九年级英语语法填空中等难度题查看答案及解析

By now, most people know they should be eating more vegetables, but are there ways to get more from the vegetables you already eat? A research shows that when it comes to vegetables, it’s not only how much we eat, but also how we prepare them, that decides the vitamins(维生素) and other nutrients(营养物) that enter our body.

Many studies show that people who eat lots of vegetables have less heart disease, and eye problems and even cancer. But raw(生的) vegetables are not always best. The researchers found that 198 Germans who eat raw food were short of lycopene(番茄红素), the matter found in tomatoes and other red vegetables. “There is an idea that raw foods are always going to be better,” says Steven K. Clinton, a professor at Ohio State University. “For fruits and vegetables, sometimes a little bit of cooking can be helpful.”

A number decide how the vegetables do good to people’s health before they reach the table, including where and how they were grown and stored before being bought. No single cooking way is best. Some nutrients are easily lost in cooking if they are cooked in different ways.

Vitamins C and B are often lost. In January, another report said that boiling was better for carrots than frying(油炸) or serving them raw. Frying was the worst way to cook.

What cooked with the vegetables can also be important? When the vegetables are cooked with fat, the diners can get more nutrients. Fat can also make the taste of vegetables better, meaning that people will eat more of them. Putting some other things will make it taste better — a little salt — can make the food taste better.

1.The people who eat the raw vegetables for a long time will __________.

A.have the eyes problems B.have heart disease

C.be in need of lycopene D.hate eating tomatoes

2.The following decide how the vegetables do good to people EXCEPT __________.

A.the place where the vegetables are grown B.the way how the vegetables are stored

C.the way how the vegetables are prepared D.the price at which the vegetables are sold

3.From the last paragraph, we can know __________.

A.it’s better to cook vegetables with the fat

B.the more fat in the cooking, the fewer vegetables people will eat

C.it’s better to cook the vegetables without salt

D.the fat will increase the nutrition of the vegetables

九年级英语阅读单选困难题查看答案及解析

By now, most people know they should be eating more vegetables. But are there ways to get more from the vegetables you already eat? A research shows that when it comes to vegetables, it’s not only how much we eat,but also how we prepare them, that decides the vitamins(维生素) and other nutrients（营养物）that enter our body.

Many studies show that people who eat lots of vegetables have less heart disease, and eye problems and even cancer. But raw(生的) vegetables are not always best. The researchers found that 198 Germans who eat raw food were short of lycopene（番茄红素）, the matter found in tomatoes and other red vegetables. “There is an idea that raw foods are always going to be better,” says Steven K. Clinton, a professor at Ohio State University. “For fruits and vegetables, sometimes a little bit of cooking can be helpful.”

Many facts decide how the vegetables do good to people’s health before they reach the table, including where and how they were grown and stored before being bought. No single cooking way is best. Some nutrients are easily lost in cooking if they are cooked in different ways.

Vitamins C and B are often lost. In January, another report said that boiling（煮）was better for carrots than frying（油炸）or serving them raw. Frying was the worst way to cook.

What cooked with the vegetables can also be important? When the vegetables were cooked with fat, the diners can get more nutrients. Fat can also make the taste of vegetables better, meaning that people will eat more of them. Putting on some other things that make it taste better—a little salt—can make the food taste better.

1.The writer mainly wants to tell us that .

A. eating vegetables is good for us

B. people should eat more vegetables

C. how much vegetables one should eat

D. the way people eat vegetables is important

2.The people who eat the raw vegetables for a long time will .

A. have the eyes problems　　 B. have heart disease

C. be in need of lycopene　　 D. hate eating tomatoes

3.Lycopene is rich in .

A. red vegetables　　 B. raw vegetables

C. fried vegetables　　 D. boiled vegetables

4.The followings decide how the vegetables do good to people EXCEPT according to the passage.

A. the place where the vegetables are grown

B. the way how the vegetables are stored

C. the way how the vegetables are prepared

D. the price at which the vegetables are sold

5.From the last paragraph, we can know .

A. it’s better to cook the vegetables with the fat

B. it’s better to cook the vegetables without salt

C. the fat will increase the nutrition of the vegetables

D. the more fat in the cooking, the fewer vegetables people will eat

九年级英语阅读单选中等难度题查看答案及解析

Have you ever seen a solar panel（太阳能电池板）in your neighborhood? Solar panels take energy from the sun and turn it into electricity. Over the past ten years, the price of solar panels has gone down greatly. In many parts of the world, solar energy is now the cheapest form of electricity. More and more people have started using solar energy to power（给……供电）their homes.

However, solar panels also have their problems. They stop working at night and on rainy days. Is it possible to make them produce electricity all of the time?

Scientists at Suzhou University, China, have invented a new solar panel now. It can produce electricity not only from solar energy but also from falling rain. When a raindrop falls on the solar panel and then rolls（滚动）down, it creates friction（摩擦力）on the surface of the panel, which can then be turned into electricity.

Sun Baoquan is one of the inventors. “Our new invention can produce electricity in any weather during the day,” he says. “It can even provide electricity at night if there is rain.”

The solar panel, however, does not make much electricity from falling rain. So Sun Baoquan is still working hard to improve it. The scientist also wants to make solar panels more flexible, which are as soft as clothing.

The field of solar energy is developing fast. Scientists around the world have been improving solar panels. Some have been working on ways to join solar panels and wind power together. Some have been trying to use sunlight to produce liquid and gas fuels（液体和气体燃料）.

1.Which energy is now the cheapest form of electricity in many parts of the world?

A.Solar energy. B.Water energy. C.Wind energy.

2.What is one of the problems of common solar panels?

A.The price of them is rising.

B.They can’t work all of the time.

C.They can hardly power people’s homes.

3.Why is the new solar panel more scientific and useful?

A.It has a larger size than a common one.

B.It produces more electricity from falling rain than solar energy.

C.It can produce electricity day and night and even in rainy conditions.

4.What does the underlined word “flexible” mean in Paragraph 5?

A.柔软的 B.光滑的 C.坚硬的

5.We can infer（推断）from this text that ________.

A.there is no room for developing solar energy

B.there is no end to the research in the field of solar energy

C.solar energy has completely taken the place of other kinds of energy

九年级英语阅读单选中等难度题查看答案及解析

A 15-year-old student from Sichuan named Wei Fang was preparing a talk on Western festivals. She searched online for information and made a PowerPoint slide(幻灯片). Zhu Hui her classmate. was doing his chemistry homework. But he couldn’t work out the last problem even though he had tried his best. So he took out his smart phone opened a special app and searched for the problem. Solutions appeared on his screen after several seconds.

Like Wei and Zhu,nowadays , many students do their homework with the help of the internet. They search for information online, or discuss with their classmates through QQ and WeChat.

“It's convenient. You don't have to wait for your teacher to explain it to you face to face. " According to Zhu. You can also learn by seeing how others work the problems out. What's more. it improves students' problem solving abilities. This is especially true for homework that requires some research work. “I am now quite skilled at finding information online, ” Zhu added.

However. this trend (趋势) also causes problems. Some lazy students just copy the answers from the internet without thinking on their own. Some even let their classmates do their homework for them. And their teachers may not know this.

But knowing how to use the internet is important. The key is to have good self-control. When you meet a difficult problem,think about it by yourself first. Be sure to understand the reasons behind the answers after you have turned to the internet,or you won't make any progress. If you are not sure about your self-control,ask your parents for help.

1.Both Wei Fang and Zhu Hui used the internet to__________.

A.play games B.search for information

C.take exams D.chat with their classmates.

2.Which of the following problems is NOT mentioned in the fourth paragraph?

A.Some students only copy the answers from the internet.

B.Some students let their classmates do homework for them.

C.Nobody is able to finish their homework without the internet now.

D.Some students have stopped thinking on their own.

3.According to the passage, _____________is the key to using the internet to study.

A.self-respect B.self-control C.self-confidence D.self-thinking

4.By writing this passage. the writer wants to tell us that___________.

A.the internet can be a good helper if we use it properly

B.the internet has made all students lazy

C.it's not necessary to learn how to use the internet

D.It’s important to learn how to use the internet

九年级英语阅读单选中等难度题查看答案及解析

Recently children have been told to buy traditional alarm clocks instead of mobile phones to wake them up in the morning. Schools will advise pupils to turn off mobile phones or iPads in the evening to have enough sleep.

Researchers from a charity say that using internet-connected devices(装置)in the evening can prevent children getting more rest. Moreover, they suggest that school children should invest in a real alarm clock to make sure that they get a good night's sleep and arrive at school on time.

　　 ①　　 . The result is that 40% pupils in secondary schools can now hardly get on well without these devices. About two-thirds of pupils have a habit of taking mobile phones to bed at night.

　　 ②　　 . The study also shows that girls are more likely to be attracted by mobile phones than boys, and often use the Internet to talk to friends by social networking websites, such as Facebook and Twitter. One girl aged 12 said, "I have been told that I am addicted(上瘾的)to the Internet, and prefer being online to being with other people."

　　 ③　　 . A girl of 13 told researchers, "I can't imagine if someone takes my iPad away. I walk around the house with it even though its' not turned on. I just like being with it." Another girl added, "Sometimes I can't sleep without using the mobile phone at night."

　　 ④　　 . The charity, which was set up to promote(推动)iPads in the classroom, has now given five suggestions to protect children from being affected by electronic(电子的)devices.

1.To get a good night's sleep, school pupils are asked to buy ________.

A.iPads B.alarm clocks C.mobile phones D.electronic devices

2.The underlined words "invest in" in Paragraph(段落)2 mean ________.

A.hand out B.hand in C.spend time on D.spend money on

3.It is better to put "A study of about 3000 pupils shows that almost half feel to be controlled by electronic devices" in ________.

A.① B.② C.③ D.④

4.From the passage, we can learn that ________.

A.most pupils turn off their mobile phones in the evening

B.using mobile phones can make children get more rest

C.one-third of pupils get used to sleeping with mobile phones

D.girls are more interested in using mobile phones than boys

5.What will be talked about in the following paragraph?

A.Examples of boys. B.More information about the charity.

C.The tips given to children. D.Instructions about electronic devices

九年级英语阅读单选中等难度题查看答案及解析

You might have noticed that sometimes, when you're playing mobile games or making a video call, the picture suddenly freezes (卡顿) because the network speed is too slow. When you try to download a movie on your phone, it seems to take forever.

These annoying things will soon become things of the past, as China just issued commercial licenses (发放商业牌照) for 5G networks on June 6. This means that China's telecommunications (电信) companies will be able to offer 5G network speeds for mobile phone users.

The "G" stands for generation (代). 1G let us talk to each other, 2G let us send messages, 3G gave us mobile data and Internet, and 4G made all of these things faster. So what will 5G bring?

First of all, 5G is so fast that it will allow us to download an entire HD movie in a second. The delay (延时) between sending and receiving data will be shortened. Now, 4G takes about 100 to 200 milliseconds (毫秒), while humans have a reaction time of about 200 to 300 milliseconds. But 5G will get the delay down to 1 millisecond or less, which is almost real-time.

Because of this increase in speed, it will possible to create and use new kinds of technology. Robots will be used to do operations because doctors will be able to control them from somewhere else without any delay. Self-driving cars will be able to drive more safely because they can smoothly communicate with other cars, traffic lights and road sensors (传感器). 5G also makes the Internet of Things (IOT, 物联网) possible.

All in all, 5G will shape every type of technology that it touches. And you won't have to wait too long for that to happen.

1.From the first paragraph that ________.

A.people can't download a movie at all on the phone

B.making a video call is impossible for phone users

C.sometimes the network speed is too slow to use

D.mobile games can't be downloaded on the phone

2.What happened on June 6 according to the passage?

A.China just gave commercial licenses officially for 5G networks.

B.Every mobile phone user could improve the network speed.

C.Most mobile phone users didn't use 4G anymore.

D.All the mobile phones are much cheaper than before.

3.The underlined word "them" refers to "___________".

A.operations B.robots C.5G phones D.speeds

4.Which of the following is NOT true according to the passage?

A.5G will make people's life much easier and more convenient.

B.Self-driving cars will become safer because of the use of 5G.

C.Using 5G to download something doesn't take any time at all.

D.5G can make people download an entire HD movie in a second.

九年级英语阅读单选中等难度题查看答案及解析

What will astronauts（宇航员）eat when a space trip takes years?

“Lots of fresh vegetables,” says Dr. Janet Williams, whose team have spent the last 10 years learning how to grow plants in a space station. And it’s a good thing that she has already started her work, because space gardening can be really hard.

As usual, astronaut George White looked into the closed plant room. He had planted Dr. Williams’s quick-growing seedlings in it, but none of the stems were showing. He opened the room to check and found the problem. The stems weren’t growing upward and the roots weren't growing downward. On Earth, gravity（重力）helps a plant’s stems and roots to find “up”and “down”. However, in the space station, there was almost no gravity.

Dr. Williams suggested a solution: give the plants more light, as plants also use sunlight to find their way. And it worked. When the plants had more light, the stems turned up and the roots went down.

Now Dr. Williams was free to worry about the next problem:Would her baby plants live to flower? Can we grow food on a space journey?

Many plants died in the space station. Dr. Williams thought she knew why: the space plants were hungry for air. Plants live by taking up CO2 from the air. Since a plant uses it up in the air around, the plant needs moving air to bring more CO2 close to its surface! On Earth, the air is always moving. Gravity pulls down cold air, and warm air rises. And with these air movements, plants get enough CO2.

Many earlier experiments with plants in space had used closed rooms.Dr. Williams tried a new greenhouse that had a fan to keep the air move. The plants loved it. They flowered and even produced more seeds. Using Dr. Williams's method, astronaut George completed the first seed-to-seed experiment in space, and moved one plant closer to a garden in space.

“And this,” says Dr.Williams, “is good news for long-term space travel.”

1.Why have Dr. Williams’s team tried to grow plants in space?

A.To produce fresh air for astronauts.

B.To help astronauts relax themselves.

C.To provide food for long space journeys.

D.To make the space garden more beautiful.

2.How did light help solve the problem mentioned in Paragraph 3?

A.It caused the gravity to change.

B.It encouraged the plants to grow faster.

C.It helped the plants to grow in the right direction.

D.It showed the astronauts where to plant vegetables.

3.Why did many plants die in the space station?

A.The light was too strong.

B.There was too much CO2.

C.There was not enough room to grow.

D.The air condition was not good enough.

4.The underlined word “it” in Paragraph 7 refers to________.

A.the moving air B.the closed room C.the space journey D.the space garden

5.What can we learn about Dr. Williams’s team from the passage?

A.They mainly live on fresh vegetables.

B.They have successfully built a space garden.

C.They invented a special fan for their greenhouse.

D.They have worked on space gardening for many years.

九年级英语阅读单选中等难度题查看答案及解析