Our solar system might be crazier than we onc...

Our solar system might be crazier than we once thought. Scientists say that deep within Uranus（天王星） and Neptune（海王星） it rains diamonds．

On Earth. diamonds form under extreme heat and pressure. The inside of Uranus and Neptune also has high temperatures and pressures. What's more, the blue planets are largely made up of icy water and gases such as methane(甲烷).

So scientists have long believed that deep inside the two planets, the heat and pressure the methane into hydrogen (氢)and carbon (碳) Then diamond rain would form, falling toward the center of the planets.

But no one could prove that this would really work-until now. In a study published recently in the journal Nature Astronomy, scientists say they were able to create this kind of "diamond rain" in a lab, reported The Guardian.

Scientists used high-powered lasers to create pairs of shockwaves through a kind of plastic. The plastic is made from hydrogen and carbon, much like methane. The shock waves created high pressure and heat, like that inside Uranus and Neptune.

"The experimental time is very short, Dominik Kraus, lead author of the study, told The Guardian. "That we saw this very clear signature of diamonds was actually very, very surprising”.

The diamonds created in the lab were tiny, only a few nanometers (纳米)wide. Scientists believe that diamonds would be much larger within Neptune and Uranus. Then they might slowly sink toward the planets center because of gravity.

1.What factor is needed to form diamonds?

A. Extreme heat and pressure　　 B. Hydrogen and carbon

C. lcy water and gases　　 D. High-powered lasers

2.What does the underlined word mean in the last paragraph?

A. Unsuccessful　　 B. Small

C. Real　　 D. Natural

3.How did scientists prove the theory of forming diamond?

A. By giving examples　　 B. By stating argument

C. By explaining statistical data　　 D. By doing experiments

4.What can be referred from the text?

A. There are many high-powered lasers in Neptune and Uranus

B. Deep inside Neptune and Uranus could be full of diamonds

C. The shockwaves inside Neptune and Uranus crate high pressure and heat.

D. Scientists long believe that there are diamonds inside Neptune and Uranus

高一英语阅读理解中等难度题查看答案及解析

根据首字母或汉语提示拼写单词

1.In our solar system eight p________ circle around the sun.

2.Do what you are told and don’t a_______ with me.

3.It was in a shop nearby t________ I bought this dress.

4.This kind of fish is r________ in oil, which is good for people who have heart trouble.

5.I would r________ tell him about it myself than let him find out from other people.

6.The train left late that night and arrived in Montreal at ________(黎明) the next

morning.

7.Organic farmers, ________(因此), often prefer using natural waste from animals as

fertilizer.

8.They ________ on (集中精力于) keeping their soil rich and free of disease.

9.Dr. Yuan is quite ________ (满意的) with his life. However, he doesn’t care about being

famous.

10.________ to (由于) his research, the UN has more tools in the battle to rid the world

of hunger.

高一英语单词拼写中等难度题查看答案及解析

At a certain point in our lives we realize we may be making life harder than it has to be. Perhaps we feel there is not enough time,________，love, or creativity available to change our situation. We seem to have lost our________ to turn our dreams into reality. The following ___________may give us some hints（暗示） about future.

A boy wants a drum，but his mother can’t ________ one，and sadly, she gives him a stick. Though he doesn’t know what to do with it, he begins to play with the stick. He then comes across an old woman ________ to light her stove. The boy gives her the stick and she ________ her stove, makes some bread, and ________ she gives him half a loaf.

Walking on, the boy comes upon a potter’s（制陶工人） wife whose child is crying because of ________. The boy gives her the bread. In gratitude，she gives him a pot. Though he doesn’t know what to do with it, he ________ it along the river, where he sees a man and his wife ________ because the wife broke one pot. The boy gives them the pot. In return, they present him ________ a coat.

Since the boy isn’t cold，he carries the coat ________ he comes to a bridge, where a man is shivering. The man was attacked and robbed of everything ________ his horse. The boy gives him the coat. And the man gives him his horse.

Not knowing how to ride, the boy ________ the horse into town, where he sees a wedding party with musicians. The bridegroom and his family are all sitting under a tree with long ________. According to custom, the bridegroom is ________ to enter the wedding procession on a horse, which hasn’t shown, so the boy gives him the ________.

_____, the bridegroom asks what he can do for the boy. Seeing the drummer ________by all his drums, the boy asks for the smallest drum, which the musician ________ gives him.

1.A. money　　 B. work　　 C. energy　　 D. experience

2.A. nature　　 B. desire　　 C. standard　　 D. ability

3.A. topic　　 B. story　　 C. idea　　 D. activity

4.A. cost　　 B. expect　　 C. afford　　 D. provide

5.A. trying　　 B. managing　　 C. performing　　 D. preferring

6.A. makes　　 B. uses　　 C. burns　　 D. lights

7.A. in person　　 B. in return　　 C. in future　　 D. in addition

8.A. hunger　　 B. cold　　 C. disease　　 D. thirst

9.A. makes　　 B. wears　　 C. carries　　 D. creates

10.A. dancing　　 B. laughing　　 C. working　　 D. quarrelling

11.A. for　　 B. with　　 C. to　　 D. over

12.A. until　　 B. unless　　 C. because　　 D. whether

13.A. with　　 B. but　　 C. and　　 D. besides

14.A. sends　　 B. controls　　 C. frightens　　 D. walks

15.A. necks　　 B. arms　　 C. faces　　 D. legs

16.A. supposed　　 B. reported　　 C. meant　　 D. allowed

17.A. pot　　 B. coat　　 C. stick　　 D. horse

18.A. Annoyed　　 B. Relieved　　 C. Ashamed　　 D. Encouraged

19.A. introduced　　 B. attracted　　 C. surrounded　　 D. impressed

20.A. worriedly　　 B. silently　　 C. gladly　　 D. luckily

高一英语七选五简单题查看答案及解析

We all know that exercise is good for our health. But some kinds of exercise may be better than others. Running, for example, may help to protect against heart disease and other health problems. Running is good exercise, but it can be hard on the body. 1..

Take It easy.

Do not run too much, too soon or too fast. Most people get running injuries when they push themselves too bad. The body needs time to get used to increase in distance or speed. 2.

Listen to your body.

Most running injuries do not come unexpectedly (意外地). 3.. They may include body aches, sore muscles (肌肉) and pain that does not go away.

4.

There is no single best shoe for every runner. You should find the shoe that offers the best fit and support for your feet. More importantly, you should replace your shoes every 500 to 800 kilometers.

Take good notes.

Take time after each run to write down what you did and how you felt. Look for things that happen over again. These notes will help you find the best exercise for you.

Cross train.

As we said earlier, running is hard on your body. So physical fitness experts suggest some form of cross training to improve muscle balance and to help you stay injury free. They say, besides running, swimming, yoga, and riding a bicycle are good exercises. 5..

A. Get good running shoes

B. Usually, there are warning signs

C. These exercises are easier on the body

D. Running may also help you live longer

E. Muscles and joints (关节) need time to recover

F. Here are five ideas to make injuries less likely

G. As advertisements for the running shoe Nike say, “just do it”.

高一英语七选五简单题查看答案及解析

Our team leader told us more than one answer to the exercise _____ possible.

A. is　　　　　 B. be　　　　　 C. are　　　　　 D. were

高一英语单项填空中等难度题查看答案及解析

I believe I’ve gotten this more than once. One lady told me she thought I was 12 and even told her 14-year-old daughter the same. I saw lots of surprised faces because people were told I was actually 19 years old.

I’m actually 19 years old, which isn’t much of a problem. I’m like the oldest of my friends and the shortest, which is pretty funny. That’s probably one of the reasons I fit in so well with them.

I volunteered at a weekend school teaching young children. Parents always looked me up and down like “why is this 13-year-old girl teaching my child?!??!?” I guessed it was because I’m also petite(娇小)，and I didn’t know whether I had a childish face…??? Sometimes I found it funny, sometimes I found it annoying(令人气恼). But I just shrugged(耸肩)it off at last. You know, soon enough people got to know me and then realized I was not actually a 13-year-old girl.

This short thing used to be a problem for me, though. I was very very small when I was younger, so kids would pick on me. When I was 12, 8-year-old girls would look down at me like “I CAN’T BELIEVE YOU ’RE TWELVE!” I had always wanted to be tall．But now that I'm older, I got used to it, and I actually love it．You know, I'm fun sized!

1.How old is the writer now?_______.

A. 12　　 B. 13　　 C. 14　　 D. 19

2.Many people felt surprised when told the writer’s age because they thought she ________．

A. was certainly over 19　　 B. should be only 12

C. was 13　　 D. was over 14

3.Which of the following words can’t be used to describe（描绘） the writer?_______.

A. short　　 B. petite　　 C. childish　　 D. tall

4.The underlined phrase “pick on” means _______.

A. like very much　　 B. help friendlily

C. behave to unkindly　　 D. enjoy very much

5.How does the writer feel when others say she is 12?_______.

A. Not surprised　　 B. Annoying　　 C. Angry　　 D. Sad

高一英语阅读理解中等难度题查看答案及解析

Once harm is _______ to the eco-system, all species will ________, including man himself.

A. made; be in danger                  B. done; be dangerous

C. caused; be endangered               D. done; be in danger

高一英语单项填空简单题查看答案及解析

To make our digestive (消化的) system work well, we should avoid doing some things after having a meal, for example, drinking water. It is true that a person should drink 8 glasses of water every day to stay healthy. However, drinking water right after eating or even during a meal may disrupt (扰乱) digestion. It might affect the natural levels of acid and bile (酸和胆汁) that are necessary for proper digestion. What’s more, drinking cold water after eating might slow down digestion. So try to avoid drinking water at least an hour after a meal, and avoid drinking it while eating.

Though walking after eating is healthy, doing it immediately after a meal is not. Doing so will make it difficult for the digestive system to take in nutrients (营养) from the food. Besides, the blood will flow towards other parts of the body, like legs, hands, etc., which will make the digestive tract not have enough amount of blood flow that is needed for proper digestion. So we should wait for at least 2 hours after eating, and then begin exercising.

Sleeping should also be avoided right after eating. This is because going to bed right after a meal will lead to improper digestion. What’s more, such a habit will also make you put on a lot of weight. Therefore, wait for an hour or two, and then go to sleep.

Many of us have the habit of drinking tea just after lunch or dinner, which is really unhealthy. The tea leaves contain a large amount of acid which prevents the protein in the food from digesting. The best time to drink tea is at least one hour after eating.

Eating fruits right after a meal may fill the stomach with air and cause discomfort. They will also take time to reach the digestive tract, disturbing the entire process of digestion. To protect your stomach from digestive problems, eat fruits before or after 1-2 hours of a meal.

In a word, if you avoid doing all the above things after eating, you will surely make your digestion easy, and you will be less likely to have digestive problems.

高一英语其他题中等难度题查看答案及解析

Everyone’s at it, even my neighbors. I thought I might be the only person left in the world who hadn’t done an eBay deal. So, I decided to try my hand at online auction（网上拍卖）.

Buying for Beginners

Sign up on www. eBay. co. uk. Most items (e.g. tables, computers and books) ready for auction will come with a picture and a short description; others may be marked with “Buy It Now ” and have a fixed price. You can buy these right away.

If the item is being auctioned, you offer the highest price you are prepared to pay and eBay bids (出价) for you. The bid will be increased little by little until it goes beyond your highest bid, then you are emailed and asked if you would like to bid again. Auctions last up to 10 days and when they finish, you get an email telling you whether you have won the item.

How to Pay

Sellers decide how they would like to be paid and you need to check this before placing a bid as you might not want to post a check or postal orders. The easiest way is through PayPal, an online payment system that takes the money away from your credit card.

Selling Made Simple

If you plan to sell on eBay, it helps to include a picture of the item. I followed my friends’ advice and put up the items I wanted to sell for a 10-day auction, starting on a Thursday. This way buyers had two weekends to bid.

The big Things in Life

It’s easy to post a small item, but furniture is a big part of eBay and this has to be collectively sent by deliverymen. Check the ways of delivery before you bid.

64. What is the passage mainly about?

A. How to make payment online.                                B. Ways of making delivery online.

C. How to use an online-auction system.                  D. Advantages of an online auction system.

65. After bidding for an item, a buyer ________.

A. has chances to make higher bids                           B. will get what he wants in ten days

C. should make payment immediately             D. may check its picture and description

66. The easiest way of making payment mentioned in the passage is ________.

A. through a local banking system                              B. by sending the money to the seller

C. through an online payment system                       D. by paying the deliveryman directly

高一英语阅读理解简单题查看答案及解析

Everyone's at it, even my neighbors. I thought I might be the only person left in the world who hadn't done an eBay deal. So, I decided to try my hand at online auction（网上拍卖）.

Buying for Beginners

Sign up on www.eBay.co.uk. Most items (e.g. tables, computers and books) ready for auction will come with a picture and a short description; others may be marked with “Buy It Now” and have a fixed price. You can buy these right away.

If the item is being auctioned, you offer the highest price you are prepared to pay and eBay bids（出价）for you. The bid will be increased little by little until it goes beyond your highest bid, then you are emailed and asked if you would like to bid again. Auctions last up to 10 days and when they finish, you get an email telling you whether you have won the item.

How to Pay

Sellers decide how they would like to be paid and you need to check this before placing a bid as you might not want to post a check or postal order （邮政汇票）. The easiest way is through PayPal, an online payment system that takes the money away from your credit card.

Selling Made Sample

If you plan to sell on eBay, it helps to include a picture of the item. I followed my friend’s advice and put up the items I wanted to sell for a 10-day auction, starting on a Thursday. This way buyers had two weekends to bid.

The Big Things in Life

It's easy to post a small item, but furniture is a big part of eBay and this has to be collectively sent by deliverymen. Check the ways of delivery before you bid.

1.What is the passage mainly about?

A.How to make payment online.

B.Ways of making delivery online.

C.How to use an online auction system.

D.Advantages of an online auction system.

2.You should 　　　　 if the item is being auctioned.

A.make loud noises B.get the others not to bid

C.ask the other people’s price D.offer the highest price you are ready to pay

3.After bidding for an item, a buyer　　 .

A.has chances to make higher bids

B.will get what he wants in ten days

C.should make payment immediately

D.may check its picture and description

4.The easiest way of making payment mentioned in the passage is　　　　 .

A.through a local banking system

B.by sending the money to the seller

C.through an online payment system

D.by paying the deliveryman directly

高一英语阅读理解中等难度题查看答案及解析