题目内容

______of the teachers in our school is 118, ______ of them are women teachers.

A. The number; first fourth B. The number; one fourth

C. A number; one second D. A number; three quarters

B 【解析】句意:我们学校老师的数量是118人,他们之中四分之一是女教师。a number of为量词短语,表示“许多……”,中心词是这个短语所修饰的复数名词,所以作主语时,谓语动词用复数形式。the number of表示“……的数量”,中心词为number,指的是of后边名词的数量,数量是个抽象概念,因此谓语动词用单数。分数的表达方式是:用基数词+序数词表示,如果分子大于1,分母则要用复...
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A vegetarian diet is often praised for its health benefits. Vegetarians usually have lower levels of heart disease, and studies have also shown that they have a lower risk of diabetes(糖尿病)than people who eat meat. However, most people don't realize that a vegetarian diet produces less pollution to the earth.

Researchers from the Union of Concerned Scientists in the US recently studied how people affect the environment. The study showed that eating meat is one of the main ways that humans can change the environment, second only to the use of motor vehicle.

Then, how can eating meat have a negative effect on the environment? For a start, all farm animals such as cows, pigs, and sheep give off methane gas(沼气)by breathing. One cow can produce up to 60 liters of methane each day. Methane gas is the second most common greenhouse gas after carbon dioxide. Many environmental experts now believe that it is more responsible for global warming than carbon dioxide. It is estimated that 25% of all methane released into the air comes from farm animals.

Another way that meat production affects the environment is through the use of water and land. 2,500 gallons of water are needed to produce one pound of beef while only 20 gallons of water are needed to produce one pound of wheat. One acre of farmland used for crop production can produce 40,000 pounds of potatoes, 30,000 pounds of carrots, or 50,000 pounds of tomatoes, however, one acre of farmland used for raising cows can produce just 250 pounds of beef.

Many people now see the benefits of a vegetarian diet, not just for health reasons, but also because it plays an important role in protecting the environment. However, some nutritionists advise against switching to a totally strict vegetarian, or vegan diet. They believe a vegan diet, which excludes(拒绝) all products from animal sources, such as cheese, eggs, and milk, can be short of many necessary vitamins and minerals our bodies need.

Today, many people know that it is important to take better care of their bodies, and to use the earth's resources more efficiently. As this understanding spreads, more people may realize that to help the environment and for the human race to survive, more of us will need to become vegetarian.

1.The underlined word "vegetarian" in the first paragraph most probably means " ".

A. a person who eats healthy food

B. a person who eats meat and vegetables

C. a person who only eats meat, fish and seafood

D. a person who only eats vegetables,grains, and fruit

2.It's for a vegetarian to have diabetes than a person who eats meat.

A. more possible B. less possible

C. highly possible D. impossible

3.Which of the statement is TRUE according to the article?

A. Doctors suggest switching to totally vegetarian diets.

B. It takes more water and land to produce a kilo of crops.

C. Farm animals give off methane gas and pollute the environment.

D. Carbon dioxide is more responsible for global warming than methane gas.

4.The underlined word "it" in Paragraph 5 refers to " ".

A. a vegetarian diet B. animal source

C. necessary vitamin D. health reason

5.The main idea of the article is that .

A. our diet is destroying the surroundings

B. raising farm animals affects the environment

C. a vegetarian diet helps to protect the environment

D. more and more people are becoming strict vegetarians

1.D 2.B 3.C 4.A 5.C 【解析】本篇文章难度适中,主要讲述食肉对环境的坏处以及素食的好处,同时科学家还建议我们也要适当吃点肉来补充人体必需的物质。 1.词义猜测题。根据Vegetarians usually have lower levels of heart disease, and studies have also shown that t...

Here is a story: A man sees a butterfly(蝴蝶). The butterfly tries to get out of its chrysalis(蛹). Feeling sorry for it, the man decides to help. He cuts the chrysalis and the butterfly comes out easily. Surprisingly enough, the butterfly is unable to fly. If the butterfly doesn’t struggle(挣扎) to leave the chrysalis, it can’t fly! The struggle develops the energy in the butterfly which makes it fly. Similarly, the challenges of life bring out the best in young people and make the fly.

When people are young, meeting and overcoming challenges will make them strong and ready to face life. When we look at successful people, we see that the most successful of them are people who have had to struggle. One famous businessman, who now owns many big supermarkets, used to carry clothes on his back and sell them from door to door when he was young. Another successful man is Dennis. His father died when he was only twenty. His father’s death forced him to mature fast. He had to bring up a family of nine people. He took up the challenges and over came them. Today his brothers and sisters are leading successful lives.

Sometimes challenges do not appear to us because we keep away from them. So some parents and teachers actively encourage young people to face challenges. They might organize some activities for young people which provide them with challenges, like rock-climbing, camping, volunteer work and so on. However, just passing exams will not prepare a person for life. We must meet and overcome challenges. The young people of today will become the leaders of tomorrow. For countries to continue to become successful, it is important that the young people learn to meet challenges and overcome them.

1.From the story we know that the butterfly can’t fly because ________.

A. it gets out by itself B. the man feels sorry for it

C. it tries to challenge itself D. the man helps it come out

2.Dennis’s example shows that successful people should ________.

A. overcome the difficulties B. take up business early

C. become the leaders of tomorrow D. sell clothes from door to door

3.The meaning of the underlined word “mature” in the passage is “________”.

A. wake up B. give up C. grow up D. bring up

4.What is the writer trying to do in this passage?

A. Describe where a butterfly comes from.

B. Encourage young people to face challenges.

C. Suggest how to become a successful businessman.

D. Explain what will happen if a person fails the exam.

5.What is the best title for this passage?

A. Successful People Have a Sense of Achievement

B. Young People Must Develop Their Energy Actively

C. Countries Should Continue to Become Successful

D. Challenges of Life Bring Out the Best in Young People

1.D 2.A 3.C 4.B 5.D 【解析】本文通过蝴蝶破茧而出、一位成功的商人的经历讲述了勇敢面对生活中的苦难的重要性。 1.句意:从故事中我们知道蝴蝶不能飞是因为男人帮助它出来了。A.它自己出来的B.男人为此感到难过C.它试图挑战自己D.男人帮助它出来。原文“He cuts the chrysalis and the butterfly comes ou...

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