Seth DeBolt is a plant scientist at the

题型:阅读理解

问题:

Seth DeBolt is a plant scientist at the University of Kentucky US. He and other scientists wanted to find a source of fuel that poor people in rural areas of developing countries could use to make electricity.

The United Nations Development Program says a billion and a half people have no electricity. A billion others have an undependable supply.

Professor DeBolt went on a study trip to rural Indonesia. He saw that there was very little waste in the use of agricultural products. Everything that farmers grew was used for something. Even the remains of fruit that people did not eat were fed to chickens.

Little waste meant there was little that could be used for fuel. Growing a separate fuel crop would take land away from food crops. That was something Professor DeBolt did not want to do.

DeBOLT said, "The people at most risk with respect to energy poverty, typically they're the same people who have food insecurity issues as it is. And then any change in availability would be most damaging to that group of people."

But he found one item that was in plentiful supply and would not create competition between food and fuel. Coconut shells are generally thrown out. Yet Professor DeBolt says it has an "excellent" heating value. All someone needs is a way to release that energy.

DeBolt says he and his team see possibilities for coconut power. "Coconuts are growing here and these are the areas where there is possibility for energy poverty to be eased at least in part by these small-scale production systems."

The researchers say these systems could provide as much as thirteen percent of the energy needs of a country like Indonesia. Other tropical countries with large crops of coconuts and similar fruit could benefit, as well.

But DeBolt says this is not a perfect solution. There are technical questions, like how to safely deal with the dangerous waste produced in the process. And there needs to be money to get these projects started.

小题1:Professor DeBolt went on a study trip to rural areas of developing countries to      .

A.help farmers make full use of waste

B.seek certain materials to make electricity

C.persuade farmers to grow more coconuts

D.find a suitable place to carry out the experiment小题2:DeBolt thought it was not a good idea to grow fuel crops because      .

A.there are plenty of coconuts

B.local farmers have no interest in it

C.it would make food problems worse

D.fuel crop has little use for local farmers小题3:The last two paragraphs mainly tell us that coconut power      .

A.needs further experiments and efforts

B.can help solve energy problem perfectly

C.will cause technique and money problems

D.has drawn Indonesia's government attention小题4:What might be the best title for the passage?

A.Make Full Use Of Coconuts

B.Make Power From Coconuts

C.A Perfect Solution

D.Food And Energy Problems

考点:科教类阅读
题型:阅读理解

阅读理解。

    Animals, including insects, do not have a language like ours. They do not talk to each other in words and

sentences. But if we watch them, we can see that they do have ways of communicating with each other.

    Can you see the rabbit's tail which is moving up and down? When rabbits see this white tail moving up

and down, they run too. They know that there is danger. The rabbit has told them something without making

a sound. It has done this by using its body language.

    Many other animals use this kind of language. When a cobra is angry, it raises its head and makes itself

look fierce. This warns other animals. When a bee has found some food, it goes back to its home. It cannot

tell the other bees where the food is by speaking to them, but it does a little dance in the air. This tells the

bees where the food is.

    Some animals say things by making sounds. A dog barks, for example, when a stranger comes near. A

cat purrs when pleased. Some birds make several different sounds, each with its own meaning. Sometimes

we human beings speak in the same way. We make sounds like "Oh" or "Ah!" when we are frightened or

pleased or when we drop something on our toes. 

    But we have something that no animals have-a large number of words that have the meanings of things,

actions, feelings or ideas. We are able to give each other all kinds of different information in words and

sentences, which no other animals can do. No other animals have so wonderful a language as we have.

1. It can be learned from the text that ______. [ ]

A. animals do have a language like that of human beings

B. all animals have their own ways of communicating with each other

C. some animals say things by words as human beings do

D. animals know how to protect themselves

2. A rabbit uses its tail to ______.[ ]

A. warn other rabbits of danger

B. tell other rabbits where food is

C. make itself look fierce

D. help itself to run fast

3. What does the underlined phrase "this kind of language" refer to? [ ]

A. Moving up and down.

B. Making no sound.

C. Body language.

D. Doing a little dance.

4. Which of the following is not true according to the passage? [ ]

A. Animals don't have a language like ours.

B. A cobra shows his anger by body language.

C. Some animals can make sounds.

D. Man is unlucky because of their language.

题型:阅读理解

下列词语中,没有错别字的一组是 [ ]

A.株连 天燃气 引以为诫 众口铄金,积毁销骨

B.磋商 一滩血 不记前嫌 流水不腐,户枢不蠹

C.蹿红 和事老 独当一面 食不厌精,脍不厌细

D.发轫 创可贴 饥肠碌碌 麻雀虽小,五脏俱全

题型:阅读理解

结构性理财产品的主要类型不包括()。

A.外汇挂钩类

B.利率/债券挂钩类

C.商品挂钩类

D.期货挂钩类

题型:阅读理解

博菜霉素的严重肺纤维化()

A.变态反应

B.后遗效应

C.毒性反应

D.特异质反应

E.副作用

题型:阅读理解

Cajal星形细胞染色方法的结果是()

A.原浆性及纤维性星形细胞呈蓝紫色

B.原浆性及纤维性星形细胞呈紫黑色

C.原浆性及纤维性星形细胞呈蓝绿色

D.原浆性星形细胞呈黑色,纤维性星形细胞呈紫色

E.原浆性星形细胞呈蓝色,纤维性星形细胞呈紫色

更多题库