Why are people interested in eating raw foods or whole foods? One reason is that eating these types of food reduces the risk of acid accumulation in your body.

Raw and whole foods are usually digested more efficiently than cooked and refined foods. When we cook foods, we destroy the natural enzymes(酶)that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is obesity. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive tract, where it becomes increasingly acidic (酸性的). To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs.

Processed foods contain chemical elements, which might confuse the appetite mechanism that tells us when we’ve had enough to eat; as a result, people often overeat . Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism(新陈代谢) becomes inactive, and then result is weight gain and obesity.

The accumulation of acid in the digestive tract makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common.

To stop this vicious(恶性的) circle in its tracks, people need to consume food and supplements that will neutralize （使…中和）the acid already accumulated in body. Eating the right types of raw and whole foods can help. it’s also important to restore your enzyme balance. You need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If you truly want to change and help your body heal itself , you need to take an active approach..

1.. What is the main purpose of this passage?   

A. To advocate eating more raw and whole foods     

B. To tell the differences between raw and processed foods

C. To inform people of the harm of processed foods 

D. To warn people of the problem of obesity

2.. It can be inferred from Para. 2 that     

A. it is essential for people to protect their vital organs              

B. foods with natural enzymes help people keep fit

C. we’d better be cautious about raw and whole foods   

D. giving up cooked and refined foods is a new lifestyle

3.. Processed foods are unhealthy because they     

A. destroy body’s cells                                            B. are difficult to digest

C. may lead to obesity                                            D. stop body’s metabolism

4.. What is likely to be talked about following the last paragraph?

A. Active approaches to avoid acid    .                  B. Different causes of acid accumulation.

C. Correct ways to cook raw foods     .                  D. Suitable types of raw and whole foods.

5.. What can we learn from the text?

A. Processed foods are good for our appetite mechanism

B. Eating the right types of raw and whole foods does good to our body

C. The accumulation of acid in the digestive tract makes digestion more effective

D. Processed foods also comfort the digestive tract

Sometimes there doesn’t seem to be enough rain. Other times there is too much. Maybe thereisn’t a lot we can do to control the rain, but there is a lot we can do to reduce problems caused bydifferent rainfall patterns.

A new development at the London Wetland Centre in Barnes solves the problems of managingwater with a “Rain Garden”. We are likely to be hearing about it a lot more often over the next fewyears. The idea is that the garden owner can store rainwater and use it in dry periods. They canreduce the problems caused by extra rain this way.

One of the key problems that the rain garden tries to deal with is the problem caused by toomuch water in the street. In a natural environment, a lot of rainwater is sent back into the air byplants. Much is also absorbed deep into the ground, and flows into streams and rivers. What happensin city environments can be completely different —— a large amount of rainwater flows straight offthe hard surfaces of roofs and roads. The harder the rain, the less likely it will be absorbed into theground —— floods are the result. Rainwater running off roads is often polluted.

The rain garden deals with living plants rather than hard surfaces. Plants are designed to holdwater and release it slowly, either into the ground, to be absorbed by plant roots (and so eventuallyback up into the atmosphere) or to go down into the water table. Not only does the rain gardenreduce the amount of water that flows onto the street, but it helps to clean it because plants are very goodat breaking down pollutants(污染物).

1.What’s the main idea of the first paragraph?

A．Explaining why there is a lack of rain at times.

B．Introducing several different patterns of rainfall.

C．Telling us how to avoid problems caused by rain.

D．Giving the idea that there are ways to manage rain water.

2.According to the second paragraph, “Rain Gardens" are likely to _____.

A．harm the environment in the short run

B．become popular over the next few years

C．be turned down by most new developments

D．be too expensive for common people to accept

3.We can learn from the third paragraph that _____.

A．floods are often the results of small rains

B．a heavy rain is less difficult for plants to absorb

C．the rain garden helps send rainwater back into the air

D．larger amounts of rainwater flow straight off in city environments

4.According to the last paragraph, what does the rain garden help to clean?

A．The plants         B．The ground.        C．The water.         D．The street.

短文改错 (共 10 小题; 每小题 1 分, 满分 10 分)
v  文中共有10处语言错误。错误涉及一个单词的增加、删除或修改。
v  增加：在缺词处加上一个漏字符号（∧），并在其下面写出该加的词。
v  删除：把多余的词用斜线（\）划掉。
v  修改：在错的词下划一横线，并在该词下面写出修改后的词。
v  注意： 1. 每处错误及其修改均仅限一词。
2.只允许修改10处，多者（从第11处起）不记分。
Dear editor,
I am a high school student. A few days before, one of my very good friend told me that he was going to stop school. He said that he wanted to start his own’s business. I tried my best to get him to change his mind, and failed. I realize it is difficult of me to change his mind. He is not doing so good in his studies. The process is much important than the result is. Now there are only 90 days being left before the test. I am not sure his decision is right or wrong. I needed your advice.

-Are you satisfied with the result of the discussion? –Not at all , I can’t have        

A、a worse one                  B、a better one                  C、the worst one               D、the best one

When I was at University I studied very hard. But a lot of my friends did very little work. Some did just enough to pass exams. Others didn’t do quite enough. Fred Baines was one of them. He spent more time playing than working in the library.

Once at the end of the term, we had to take an important test in chemistry. The test had a hundred questions. Beside each question we had to write “True” or “False”. While I was studying in my room the night before the test, Fred was watching TV. Fred usually worried a lot the night before a test. But on that night he looked perfectly calm. Thenhe told me of his plan. “It’s very simple. There are a hundred questions and I have to get fifty correct to pass the test. I’ll just toss（掷）the coin to decide the answers. That way, I’m sure I’ll get half the questions right.”

The next day, Fred came happily into the exam room. As he sat tossing a coin for half an hour he marked down his answers. Then he left, half an hour before the rest of us.

The next day, he saw the chemistry professor in the corridor. “Oh, good,” he said to the teacher, “Have you got the result of the test?” The teacher reached into his pocket and took out a coin. He threw it into the air, caught it in his hand and looked at it.

“I’m terribly sorry, Fred,” he said, “You failed!”

1.This story mainly wants to tell us          .

A．chemistry is really hard to learn

B．there are many questions for students to prepare.

C．good exam results really need studying hard

D．tossing a coin can not always decide the result

2.Fred Baines was one of those who          .

A．did just enough to pass an exam

B．didn’t work hard enough for their studies

C．had more important work to do than study

D．were quite good at passing exams

3.Fred came happily into the exam room because          .

A．he had got ready for the exam

B．he knew the answers already

C．one excellent student would help him

D．he had his special way to finish the exam

4.Which of the following about the chemistry exam is TRUE?

A．The chemisty exam was not very difficult at all.

B．It in fact took an hour to finish the chemisty exam

C．The chemisty exam had more than one hundred questions.

D．The chemisty exam needed to be done by tossing a coin.

5.The professor tossed a coin to tell Baines that          .

A．he was satisfied with Baines’ way for the exam

B．he wanted to make friends with Baines

C．Baines’ way for the exam would never work

D．the exam result depended on the coin