问题 单项选择题

几年来,我国许多餐厅使用一次性筷子,这种现象受到越来越多的批评。资源环境工作者呼吁:为了保护森林资源,让山变绿、水变清,是采取坚决措施,禁用一次性筷子的时候了。 除了以下( )说法外,其他说法都从不同方面对批评者的观点提供了支持。

A.我国森林资源十分匮乏,把宝贵的木材用来做一次性筷子,实在是莫大的浪费

B.1998年的特大水灾不但与天气有关,也与多年的滥砍滥伐有很大关系

C.森林和各种绿色植被对涵养水分、调节气候、防止水土流失具有不可替代的作用

D.保护森林不能只保不用。合理使用,适量采伐,发展林区经济,,还能促进保护

答案

参考答案:D

解析: 本题的问题是一个质疑题。在选项中找到反对材料的观点,而A、B、C项均支持资源环境者的观点。故选D。

阅读理解

Some plants get so hungry they eat flies, spiders, and even small frogs. What’s more amazing is that these plants occur naturally (in special environment) in every state. In fact, they’re found on every continent except Antarctica.

You’ve probably seen a Venus’ flytrap. It’s often sold in museum gift stores, department stores, and even supermarkets. A small plant, it grows 6 to 8 inches tall in a container. At the end of its stalks(茎)are specially modified leaves that act like traps. Inside each trap is a lining of tiny trigger(触发) hairs. When an insect lands on them, the trap suddenly shut. Over the course of a week or so, the plant feeds on its catch.

The Venus’ flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International Carnivorous Plant Society’s Newsletter. Note: Despite any science –fiction stories you might have read, no meat-eating plant does any danger to humans.

Dr. Meyers-Rice says a plant is meat-eating, only if it does all four of the following: “attract, kill, digest, and absorb” some forms of insects, including flies, butterflies, and moths. Meat-eating plants look and act like other green plants ---well, most of the time.

All green plants make sugar through a process called photosynthesis(光合作用). Plants use the sugar to make food. What makes “meat-eating” plants different is their bug-catching leaves. They need insects for one reason: nitrogen(氮). Nitrogen is a nutrient that they can’t obtain any other way. Why almost all green plants on our planet get nitrogen from the soil “Meat-eating” plants can’t. They live in places where nutrients are hard or almost impossible to get from the soil because of its acidity(酸度). So they’ve come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soil is poisonous to “meat-eating” plants. Never fertilize(施肥)them! But don’t worry, either, if they never seem to catch any insects. They can survive, but they’ll grow very slowly.

小题1:According to the passage, carnivorous plants       .

A.only grow in wild field

B.are rare to see

C.are as common as flies

D.cannot grow on Antarctica小题2:Venus’ flytrap preys on insects by          .

A.its numerous long stalks

B.a container where it grows

C.its insect-catching leaves

D.the lining of tiny trigger hairs小题3:We can conclude from the third paragraph that_____.

A.carnivorous plants are dangerous

B.carnivorous plants are fictional

C.carnivorous plants occasionally eat books

D.carnivorous plants are harmless to humans小题4:In the eyes of the author, which of the following statements is TRUE?

A.Carnivorous plants cannot grow in acid soil.

B.Carnivorous plants can grow in nutrient-poor soil.

C.Carnivorous plants will die if they cannot catch any insects

D.Carnivorous plants can get nitrogen from nutrient-rich soil.

单项选择题