试题

试题 试卷

logo

题型:阅读选择 题类:常考题 难易度:普通

     Bamboo (竹子) is one of nature's (自然) most surprising plants. Many people call this plant a tree, but it is a kind of grass.
Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist reported one bamboo plant which grew 1. 5 metres(4 feet) in 24 hours! Bamboo grows almost everywhere in the world except Europe. There are more than 1, 000 kinds of bamboo.
     Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimetres wide while others may grow to more than 30 centimetres (1 foot) across. This plant also comes in different colours, from yellow to black to green.
Bamboo has been used to make many things such as hats and kitchen tools( 厨房用具). Because it is strong, bamboo is also used to build buildings.
      Many Asian countries have used bamboo for hundreds of years. They often use bamboo for buildings and supporting (支撑) new buildings and bridges while they are being built.
      In Africa, poor farmers are taught how to find water using bamboo. These African countries need cheap way to find water because they have no money, and their fields often die from no rain and no water. Bamboo pipes( 管子) help poor farmers bring water to their thirsty fields without spending a lot of money.

(1)、How is bamboo like grass?

A、It grows quickly. B、It's wood. ` C、it is easy to cut. D、It is very thin.
(2)、Though you can see bamboo everywhere, it doesn't grow      .

A、in China B、in Europe C、on mountains D、in Africa
(3)、Why is bamboo used by African poor farmers? Because       .

A、it is cheap B、it has different colours C、it is strong D、it has been used by Asians
(4)、Bamboo pipes can      .

A、make money B、be trees C、grow quickly D、carry water
(5)、In Asia, bamboo has been used for      .

A、a short time B、many thousands of years C、many hundreds of years D、about 100 years
举一反三
 阅读理解

Chinese scientists found a whale fall for the first time in the South China Sea during a deep-sea expedition (考察) carried out by oceanic research ship Tansuo-1.

It's sad to learn that a whale has died in the ocean. However, that's not the end for the whale. It has a lot to give to other sea animals after death. When a whale dies, it quickly sinks to the bottom of the ocean floor. There, the whale body provides food for deep-sea animals, which are often hungry for food. It creates an ecosystem called a whale fall "oasis (绿洲)" of life in the deep sea. The remains can last for lots of years.

The whale fall ecosystem can exist in the deep ocean because great pressure and cold temperatures there prevent the body from decomposing (腐烂) too quickly. But the depth also makes it hard for scientists to discover them.

There are less than 50 known whale falls in the world, so it's lucky for China to find the valuable one. The whale body in the South China Sea is about three meters long. Scientists have found several kinds of shrimp and fish near the whale body. Some fish have started to eat the whale's tail. The whale fall might be quite recent and needs long-term watching, according to Xie Wei, a scientist who took part in the expedition.

By studying the whale fall, scientists can better understand how marine (海洋的) ecosystems support life and how to protect biodiversity (生物多样性) resources in the deep sea.

返回首页

试题篮