Today, the world’s diversity (多样性) of food cr...

Today, the world’s diversity (多样性) of food crops is quickly decreasing. But scientists around the world are taking action. They are building seed banks. At seed banks, scientists store the seeds of many different crops.

There are now 1,400 seed banks around the world. However, some banks are in warm countries. If the electricity fails, the seeds will get too hot and die. Other seed banks are in countries troubled by war. Sometimes people damage the seed banks. If this happens, valuable seeds can be lost forever!

The organization Global Crop Diversity Trust decided they wanted to deal with this problem. So, they decided to build a global seed bank. This seed bank would contain a back-up, or extra copy, of all the world’s seeds. Smaller seed banks would still collect and keep local seeds. But they would also send copies of their seeds to the global bank.

Scientists from the Global Crop Diversity Trust chose the cold, snowy mountains of Svalbard, Norway to build the global seed bank — the Svalbard Global Seed Vault (斯瓦尔巴全球种子库). Organizations, farmers, or local seed banks store their extra seeds there. And the people who place their seeds in the vault are the only people who can take them out. They pay to ship their seeds to Norway, but it does not cost them any money to store their seeds. The Global Crop Diversity Trust pays for this.

Cary Fowler is a scientist who heads the Global Crop Diversity Trust. He said, “If the Seed Vault simply supplies seed banks with copies of seeds that those banks lost by accident, the Seed Vault will be worth more than it cost.”

1.Seed banks are built to ______.

A. research on seeds　　 B. produce new seeds

C. protect crop diversity　　 D. increase the number of seeds

2.Compared with other seed banks, the global seed bank ______.

A. was built by the government

B. is more welcomed by farmers

C. is mainly used by great scientists

D. can provide a good environment for seeds

3.What can we learn about the Svalbard Global Seed Vault?

A. It helps to pay the shipping cost.

B. No one can take seeds out of there.

C. There are no fees to store seeds there.

D. It mainly receives seeds from farmers.

4.What is Cary Fowler’s attitude towards the Seed Vault?

A. He feels it is very important.　　 B. He is surprised at it.

C. He thinks it costs too much.　　 D. He is uncertain about it.

高一英语阅读理解中等难度题查看答案及解析

Food safety is a problem in all places around the world and people in different areas of the world prepare foods in different ways. The WHO released five simple rules for preparing food in a safe way. 1.

Key 1: Keep clean.

The first key tells about the importance of washing. People should wash their hands often—before touching food, while they are preparing food, and any time after they go to the toilet. People should wash all surfaces and equipment used for preparing food. 2.

Key 2: 3.

People should separate raw, or uncooked food from foods that are already cooked and foods that will not be cooked. People should store raw meat, chicken, and fish in containers, or in separate areas. Raw foods should not touch prepared foods.

Key 3: Cook completely.

People should cook eggs and meat, like birds, seafood, and animals, especially carefully. These foods may carry more micro-organisms than other foods. Food like soup must be boiled for at least a minute to make it be cooked completely. It is also important that people re-heat cooked food completely.

Key 4: Keep food at safe temperatures.

When people are finished with eating, they should keep the left food in a refrigerator below 5℃ and shouldn’t store it for too long. At room temperature, about 20℃, the amount of micro-organisms can increase very quickly. 4. They cannot grow as quickly in a very hot or very cold environment.

Key 5: Use safe water and raw materials.

5. Damaged or old food may develop harmful chemicals as it gets older.

A.Eat cooked food immediately, while it is still hot.

B.They call these rules the “Five Keys to Safer Food.”

C.Separate raw and cooked.

D.People should use safe water and choose fresh foods.

E.Keeping everything clean helps people to avoid micro-organisms.

F.People should also protect cooking areas and food from insects and animals.

G.But temperatures above 60℃ or below 5℃ control the growth of micro-organisms.

高一英语七选五中等难度题查看答案及解析

The World Health Organization says the widespread use of sugar in food products and drinks is a major concern in many areas. So WHO officials are calling on governments to require taxes on sugary drinks in an effort to limit their usage and popularity. The officials believe the taxes also would reduce the risk of health problems resulting from obesity.

Obesity is a condition in which the body stores large, unhealthy amounts of fat. Obese individuals are considered overweight. A new report says that in 2014 more than one-third of the adults in the world were overweight, and 500 million were considered obese. The United Nations agency estimates that in 2015, 42 million children under age 5 were either overweight or obese. It says that number represents an increase of about 11 million during the past 15 years. Almost half of these boys and girls live in Asia and one-fourth in Africa.

The U.N. agency blames unhealthy diets for a rise in diabetes cases. There are 422 million cases of the disease worldwide. WHO says 1.5 million people die from it every year. It says the use of sugar in food products, like sugary drinks, is a major reason for the increase in rates of obesity and diabetes.

Temo Waqanivalu is with the agency’s Department for the Prevention on Non-Communicable Diseases. He told VOA hat taxing sugary drinks would reduce consumption and save lives. Waganivalu noted that Mexico enacted a 10 percent tax on sugary drinks in 2014. He said by the end of the year, there was a 6 percent drop in the consumption of such drinks. Among poor people, the number of people who consumed sugary drinks dropped by 17 percent.

The WHO says people should limit the amount of sugar they consume. It says they should keep their sugar intake to below 10 percent of their total energy needs, and reduce it to less than 5 percent for improved health.

1.Why are taxes on sugary drinks required?

A. To limit their use and popularity.

B. To readjust the economic structure.

C. To warn people to change their life style.

D. To ensure the market’s diverse development.

2.What do the figures in the second paragraph suggest?

A. Adult obesity is ignored at present.

B. Obesity is a severe worldwide problem.

C. Obesity can block economic development.

D. Obesity is most serious in developed countries.

3.What does the underlined word “enacted” mean in the passage?

A. Abolish　　 B. Pass

C. Promise　　 D. Reduce

4.What does the example of Mexico prove?

A. Tax policies are unfair to the poor.

B. Sugary drinks are a threat to health.

C. The poor consume more sugary drinks.

D. Taxing sugary drinks makes a difference.

高一英语阅读理解中等难度题查看答案及解析

Heart disease is one of the major killers in the world today. Many who suffer from it must have heart transplants (移植). However, it’s difficult to get a suitable heart donation, and even if a patient survives the wait, his or her body often rejects (排斥) the heart.

But there is now new hope for sufferers of heart disease. According to a study published in the journal Advanced Science, researchers from Israel’s Tel Aviv University printed a 3D human heart on April 15.

“This is the first time anyone anywhere has successfully engineered and printed an entire heart,” professor Tal Dvir told CNN.

Unlike the previous 3D-printed heart structure, the new heart is complete with cells, blood vessels (血管), chambers (心室) and other structures a heart needs to function normally. But scientists still have more to figure out before the 3D-printed heart can be fitted into the body. For one thing, the experimental heart is only the size of a thumb (拇指). And, although it can contract (收缩) like a muscle, it cannot pump out blood like a real one. At present, the heart prototype (样品) is like a tiny airplane that has all of the right parts, but can’t fly.

However, the development is still regarded as a major breakthrough in medicine.

In the experiment, the researchers turned human fat tissue (脂肪组织) into human heart tissue with stem cell (干细胞) technology. The tissue was then turned into “bio-ink” for a 3D printer to ensure that tissue in the heart came from the patients themselves. So ideally, if it were to be placed in the body of someone in need of a transplant, there would be less risk of organ rejection.

“Patients will no longer have to wait for transplants or take medications to prevent their rejection,” researchers told USA Today. “Instead, the needed heart will be printed, fully personalized (个性化的) for every patient.”

But the scientists think that 3D printing can be used to create other human organs. They foresee a time when the 3D printing of organs will be an everyday medical practice.

“Maybe, in 10 years, there will be organ printers in the finest hospitals around the world and these procedures will be conducted routinely,” Dvir said.

1.Why is the 3D-printed heart important?

A.It will be used on a patient.

B.It is the first 3D-printed heart.

C.It will replace a heart donation.

D.It has a complete heart structure.

2.What problem do 3D-printed hearts have?

A.They cost too much. B.They are too small.

C.They can’t contract. D.They are hard to produce.

3.Why would there be less risk of organ rejection with the 3D-printed heart?

A.It would be made with stem cell technology.

B.It would be made from human fat tissue.

C.It would come from a patient’s body.

D.It would be printed according to the patient’s condition.

4.What attitude does Tal Dvir hold toward the future of 3D printing of organs?

A.Confident. B.Doubtful.

C.Worried. D.Confused.

高一英语阅读理解困难题查看答案及解析

People today in this busy world have lost sight of what true friendship is. I think I would help the world out a little and tell them what true friends are. _________1_________  Friends have similarities(相似点) but they also have differences. The key to building friendship is not only to expand similarities but also to accept each other’s faults.

_________2_________  No one likes to argue but it is necessary to have a healthy friendship, because if you agree on everything, either you aren’t being true to each other or one of you is trying too hard to please the other. If you feel uncomfortable around the person, then something isn’t quite right.

_________3__________ They have their little angry moments but what’s done is done and all is forgotten. Why let something that happened in the past ruin your happy friendship in the future.

_________4____________ Some people think that you have to know someone really well to become good friends. Trust me, it’s not true.

__________5___________  Just remember, friends are forever.  Respect your friends and love them forever.

A.    Believe in love at first sight because the same thing happens in friendship.

B.    These are only the key points of being a true friend

C.    Don’t believe your first impression.

D.    Friends don’t have to be exactly the same.

E.    Friends love each other unconditionally(无条件地).

F.    Friends have to argue！

高一英语其他题中等难度题查看答案及解析

With the development of society, the choice of food and drinks for children is more diversified(多样化) than ever before. However, every coin has two sides. Many facts suggest that children are overweight and the situation is getting worse, according to the statistics(数据统计). I feel there are a number of reasons for this.

Some people blame（责怪）the fact that we are surrounded by shops selling unhealthy, fatty foods, such as fried chicken and ice cream, at low prices. This has turned out a whole generation of grown-ups who seldom cook a meal for themselves. If there were fewer of these restaurants then probably children would buy less take-away food.

There is another argument that blames parents for allowing their children to become overweight. I agree to this, because good eating habits begin early in life, long before children start to visit fast food shops. If children are given fried chicken and chocolate rather than healthy food, or are always allowed to choose what they eat, they will go for sweet and salty foods every time, and this will carry on throughout their lives.

There is a third reason for this situation. Children these days take very little exercise. They do not walk to school. When they get home, they sit in front of the television or their computers. Not only is this an unhealthy pastime（消遣）, it also gives them time to eat more unhealthy food. What they need is to go outside and play active games or sports.

The above are the main reasons for this problem, and therefore we have to encourage young people to be more active, as well as guiding them away from fast food shops and bad eating habits.

1.What is suggested by the author to deal with “overweight”?

A. Blaming the shops selling unhealthy and fatty foods.

B. Asking young children to walk to school every day.

C. Living an active life and giving up bad eating habits.

D. Not watching TV or playing computer games after school.

2.Which of the following shows the structure of the whole text?

3.The author writes the passage to __________

A. show people a social problem

B. provide facts for government

C. advise solutions to a problem

D. compare opinions with people

高一英语阅读理解中等难度题查看答案及解析

With the development of society, the choice of food and drinks for children is more diversified(多样化) than ever before．However, every coin has two sides．Many facts suggest that children are overweight and the situation is getting worse, according to the statistics(数据统计)．I feel there are a number of reasons for this.

Some people blame（责怪）the fact that we are surrounded by shops selling unhealthy, fatty foods, such as fried chicken and ice cream, at low prices．This has turned out a whole generation of grown-ups who seldom cook a meal for themselves．If there were fewer of these restaurants then probably children would buy less take-away food.

There is another argument that blames parents for allowing their children to become overweight．I agree to this, because good eating habits begin early in life, long before children start to visit fast food shops．If children are given fried chicken and chocolate rather than healthy food, or are always allowed to choose what they eat, they will go for sweet and salty foods every time, and this will carry on throughout their lives.

There is a third reason for this situation．Children these days take very little exercise．They do not walk to school．When they get home, they sit in front of the television or their computers．Not only is this an unhealthy pastime（消遣）, it also gives them time to eat more unhealthy food．What they need is to go outside and play active games or sports.

The above are the main reasons for this problem, and therefore we have to encourage young people to be more active, as well as guiding them away from fast food shops and bad eating habits.

1.What is suggested by the author to deal with “overweight”?

A．Blaming the shops selling unhealthy and fatty foods.

B．Asking young children to walk to school every day.

C．Living an active life and giving up bad eating habits.

D．Not watching TV or playing computer games after school.

2.Which of the following shows the structure of the whole text?

3.The author writes the passage to ______________

A．show people a social problem

B．provide facts for government

C．advise solutions to a problem

D．compare opinions with people

高一英语阅读理解中等难度题查看答案及解析

The United Kingdom of Great Britain and Northern Ireland is one of the most diverse nations in the whole of Europe. This article will show you how to adapt to the varied culture of England, Scotland, Wales and Northern Ireland.

Get used to small spaces. The United States is not only a huge country but also has big cars ,houses and spaces. ________1.  Houses, apartments , cars and appliances are all smaller than what you are accustomed to, so you have to get used to smaller things.

Be polite .Always apologize for running into someone, even if it is their fault, as it makes you out to be a kind person. Respect people ‘s personal space and always wait in line.

Accept jokes. ________2.  Bantering and taking the mickey are all ways to describe making fun of someone but this isn’t necessarily a bad thing. Teasing someone is a common way to show friendship .As one Briton put it,“ You never make fun of someone you don’t like.

Get used to the driving. The British drive on the left side of the road .________3.________ Also the cars in the UK have the steering wheel(方向盘)on the right side, so you need get used to this as well. Be especially careful with your turns and remember that right turns in the UK cross opposite traffic in the same way that left turns do in the Us and other countries that drive on the right.

________4.The British use different words and pronounce words differently .Look

around on the Internet or buy books about words and expressions used in Britain.

There’s more to the UK than London. London is an excellent city and the most popular in the Untied Kingdom. ________5.________ And the green countryside is a defining feature of the UK , which is something that should be explored.

E. However ,the UK does not have the luxury of space

F. But there are many other cities filled with culture and wonder.

G. One of the most confusing aspects of British culture is humor

高一英语填空题简单题查看答案及解析

A fast food restaurant is the place________, just as the name suggests, eating is performed quickly.

A. which　　　　　　 B. where　　　　　　　 C. there　　　　　　 D. what

高一英语单项填空中等难度题查看答案及解析

A fast food restaurant is the place _____ eating is performed quickly.

A.which B.where C.there D.what

高一英语单项填空中等难度题查看答案及解析