I know the reason ______ so many people bough...

I know the reason ______ so many people bought the book Frog to read. It is because Frog is the first Chinese Nobel Prize winner Mo Yan’s famous work.

A. for which　　　　　　　　　 B. with which

C. where　　　　　　　　 　　　 D. which

高二英语单项填空中等难度题查看答案及解析

This is perhaps one of _____ important reasons why so many people write ____ poetry.

A．a ; the            B．the ; the           C．the; 不填         D．a; 不填

高二英语单项填空中等难度题查看答案及解析

The reason_______ so many people rushed to California was ______ another gold mine was found in California.

A. that; because    B. why; that   C. that; why    D. why; because

高二英语单项填空中等难度题查看答案及解析

---Mike, you know, I have read the book twice!

---______? I have read it so many times that I can recite it now.

高二英语单项填空简单题查看答案及解析

It’s_________ comfort to know that so many people are donating money and food to the people in________need.

A. /, the         B. a, the       C. a, /          D. /, a

高二英语单项填空简单题查看答案及解析

Have you ever wondered why there are so many skin colors in the world? Do you know why people living in particular areas usually have a certain color? Biology and history are the two reasons for this.

Skin contains something called melanin, which determines a person’s skin color. The more melanin a person has, the darker his or her skin will be. The amount of and the production of melanin are controlled by genetics, but can be affected by other things, such as sunlight. If a person lives in a place with less sunlight, a person’s body will produce less melanin, making the skin lighter.

Skin color is also affected by another source ---- vitamin D. humans all need vitamin D to build bones. People can get it by eating foods such as fish and milk, or from sunlight, so sunlight absorbed by melanin cannot be used for vitamin D production. Therefore, a dark—skinned person will produce less vitamin D than a light—skinned person when they received the same amount of sunlight.

The connection between vitamin D production and skin color is clear when we look at evolution. The earliest humans lived in Africa, their dark skin produced less vitamin D because of their dark skin. As a result, their skin made less melanin, so they could get enough sunlight to produce vitamin D. their skin gradually got lighter and they lost hair. Now, people living in areas with strong sunlight like Africa, have darker skin, while people living in other areas have lighter skin. The exception to this is the Inuit, who live in a place with little sunlight, but have dark skin because they eat a lot of fish and have enough vitamin D.

Evolution has given us a rainbow of skin colors. Humans have always had melanin to determine our skin color. What has changed through history is the environment where we have lived. This has in turn changed our melanin production, and eventually, skin color.

高二英语其他题中等难度题查看答案及解析

Have you ever wondered why there are so many skin colors in the world? Do you know why people living in particular areas usually have a certain color? Biology and history are the two reasons for this.

Skin contains something called melanin, which determines a person’s skin color. The more melanin a person has, the darker his or her skin will be. The amount of and the production of melanin are controlled by genetics, but can be affected by other things, such as sunlight. If a person lives in a place with less sunlight, a person’s body will produce less melanin, making the skin lighter.

Skin color is also affected by another source ---- vitamin D. humans all need vitamin D to build bones. People can get it by eating foods such as fish and milk, or from sunlight, so sunlight absorbed by melanin cannot be used for vitamin D production. Therefore, a dark—skinned person will produce less vitamin D than a light—skinned person when they received the same amount of sunlight.

The connection between vitamin D production and skin color is clear when we look at evolution. The earliest humans lived in Africa, their dark skin produced less vitamin D because of their dark skin. As a result, their skin made less melanin, so they could get enough sunlight to produce vitamin D. their skin gradually got lighter and they lost hair. Now, people living in areas with strong sunlight like Africa, have darker skin, while people living in other areas have lighter skin. The exception to this is the Inuit, who live in a place with little sunlight, but have dark skin because they eat a lot of fish and have enough vitamin D.

Evolution has given us a rainbow of skin colors. Humans have always had melanin to determine our skin color. What has changed through history is the environment where we have lived. This has in turn changed our melanin production, and eventually, skin color.

高二英语阅读理解中等难度题查看答案及解析

People are overweight for many reasons, the most important one of which is that they eat the wrong foods, get the wrong types ofcalories per meal, and they also eat meals at the wrong time each day. Food is more powerful than any weight loss pill, because the food that you eat can either make you thin or fat. This is true because your body is like an engine, and it only needs certain foods at certainintervals(间隔) each day.

Low-calorie Diets Do Not Work

The reason people cannot lose weight by starving themselves is that their metabolism(新陈代谢) will detect any major drop in calories and it will then adjust itself by burning fewer calories each day. That is the reason why you can eat 1,000 calories per day and not lose any weight, while your friends can eat 2,500 calories per day and not gain any weight.

Low-fat Diets Do Not Work

Many people in today’s society are buying mostly low-fat or non-fat food at the grocery store. Everybody knows how much fat is inside the food they buy. However, people are getting fatter than ever before by doing this. They are not losing weight by changing to this low-fat lifestyle.

Losing weight has nothing to do with these things. One of the most important things you can do to control your weight is to eat the proper foods, such as fruit and vegetables, eat them at the right time, and exercise every day. If people make this a habit, they will lose weight.

1.What is the main reason why people are overweight?

A. They burn many calories every day.

B. They eat the wrong foods at the wrong time.

C. They eat food with lots of calories.

D. They don’t take weight loss pills.

2.The article is written in order to________.

A. tell readers not to buy low-fat or non-fat food.

B.tell readers about an important scientific discovery.

C .tell readers how to lose weight.

D. call on people to lose weight and stay healthy.

3.To realize the aim of your weight loss plan, you should_________.

a. do exercise every day

b. eat meals at the right time

c. eat fruits and vegetables

d. eat low-fat or sweet food

e. eat the proper foods at each meal

A. a, b, c, e　　　　　 B. a, b, d, e

C. a, c, d, e　　　　 D.a, b, c, d

高二英语阅读理解中等难度题查看答案及解析

People are overweight for many reasons, the most important one of which is that they eat the wrong foods, get the wrong types of calories per meal, and they also eat meals at the wrong time each day. Food is more powerful than any weight loss pill, because the food that you eat can either make you thin or fat. This is true because your body is like an engine, and it only needs certain foods at certain intervals(间隔)each day. Low-calorie Diets Do Not Work

The reason people cannot lose weight by starving themselves is that their metabolism(新陈代谢)will detect any major drop in calories and it will then adjust(调整)itself by burning fewer calories each day. That is the reason why you can eat 1,000 calories per day and not lose any weight, while your friends can eat 2,500 calories per day and not gain any weight.

Low-fat Diets Do Not Work

Many people in today’s society are buying mostly low- fat or non-fat food at the grocery store. Everybody knows how much fat is inside the food they buy. However, people are getting fatter than ever before by doing this. They are not losing weight by changing to this low fat lifestyle.

Losing weight has nothing to do with these things. One of the most important things you can do to control your weight is to eat the proper foods, such as fruit and vegetables, eat them at the right time, and exercise every day. If people make this a habit, they will lose weight.

1.What is the main reason why people are overweight?

A．They eat the wrong foods at the wrong time.   B．They eat food with lots of calories.   C．They don’t take any weight loss pills.                     D．They burn many calories every day.

2.The article is written in order to _______.

A．tell readers not to buy low-fat or non-fat food  B．tell readers how to lose weight C．tell readers about an important scientific discovery            D．call on people to lose weight and stay healthy

3.To realize the aim of your weight loss plan, you should ________.

a. do exercise every day

b. eat meals at the right time

c. eat fruits and vegetables

d. eat low-fat or sweet food

e. eat the proper foods at each meal

A．a, b, c, d           B．a, b, d, e           C．a, c, d, e           D．a, b, c, e

高二英语阅读理解中等难度题查看答案及解析

All over the world, and for many different reasons, there are millions of people who rarely or never eat meat. These people are called vegetarians. To people who eat meat, being a vegetarian may seem like a very strange thing, diets for several different reasons.

First, vegetarians have an enormous health advantage. One of the major health problems in modern societies is not too much protein but too much fat, especially in the form of animal fats. Medical evidence suggests that animal fats, including butter, contribute to the development of cholesterol in the human body. High amount of cholesterol seem to be part of the cause of heart disease. Most vegetarians have low level of cholesterol. High amounts of animal fats also seem to lead to certain kinds of cancer, and vegetarians are typically less vulnerable to these cancers than people who eat a lot of meat. Overall, studies comparing the health of vegetarians and meat-eaters show that the meat-eaters are twice as likely to die of heart disease as vegetarians are.

Better health is one reason that people choose to become vegetarians. Another reason is religion. Some religions forbid the eating of meat. The largest of these is the Hindu religion, which has about 600 million believers in the world. Although not all Hindus are vegetarian, many are, and there are many believers of other religions such Buddhism and even some Christian religions that also do not eat meat.

Many vegetarians do not eat meat simply because they do not like the taste of it. They have no religious or philosophical reasons; they just do not like meat. Another important reason that vegetarians give for not eating meat is the health advantages that were given above. Lastly, there are many people who do not eat meat because they just do not like the idea of killing animals for food. They believe that life, all life, is valuable , and that we do not have to destroy life to feed ourselves when there are other good sources of food.

1.According to the passage, people choose to be vegetarians for the following reasons EXCEPT________.

A．they want to stay healthy

B．they are too kind to put the idea of killing animals

C．they live in areas where meat supply is not adequate

D．they should not eat meat due to their religious belief

2.Which of the following is true according to Paragraph 2 ?

A．Vegetarians enjoy a more healthy life than the meat eaters.

B．Heart disease and cancer are caused by large amounts of protein.

C．There are twice as many meat-eaters as vegetarians who die of cancer.

D．There are less health problems in modern society due to advanced medical care.

3.What does “vulnerable” mean in Paragraph 2?

A．Having low level of cholesterol.

B．Having high level of cholesterol.

C．Having weak ability to resist diseases and harms.

D．Having strong ability to resist disease and harms.

4.It can be inferred from the passage that __________.

A．being a vegetarian may be a very strange thing

B．vegetarians eat meat on some special occasions

C．all vegetarians have reasons for their not eating meat

D．most vegetarians believe that life without meat is happy.

高二英语阅读理解中等难度题查看答案及解析