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（莖）are specially modified leaves that act like traps. Inside each trap is a lining of tiny trigger(觸發(fā)) 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.

1.According to the passage, carnivorous plants       .

A．only grow in wild field

B．a(chǎn)re rare to see

C．a(chǎn)re as common as flies

D．cannot grow on Antarctica

2.Venus’ flytrap preys on insects by          .

A．its numerous long stalks

B．a(chǎn) container where it grows

C．its insect-catching leaves

D．the lining of tiny trigger hairs

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

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.

 

【答案】

1.D

2.C

3.D

4.B

【解析】略

 

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科目：高中英語(yǔ) 來(lái)源：新教材新學(xué)案　配合普通高中課程標(biāo)準(zhǔn)實(shí)驗(yàn)教科書(shū)　英語(yǔ)3必修(人教版) 人教版 題型：054

完形填空(Cloze Test)

　　Many of our traditional medicines come from plants that grow wild throughout the world．Folk medicine keeps the health of the body by using medicines taken from surrounding plants since 　　1　　 for making medicine can be 　　2　　 everywhere, one can 　　3　　 folk medicine in any place of the world．They provide the basic ingredients(成分)that were used in the preparation of medicines and remedies(治療方法)．

　　The practice of folk medicine 　　4　　 all the way back to the time of early man when both man and animal used plants in order to 　　5　　 healthy．It is not 　　6　　, for example, to see an animal suck the sap of some plant after being 　　7　　 by a poisonous snake．　　8　　 animals seem to have their 　　9　　 gift for knowing which plant will 　　10　　 what illness, man probably learned how to 　　11　　 for himself by animal watching．

　　Man 　　12　　 learned other things from animals．He observed that wild animals when sick remained quiet and rest, depending upon nature's remedies(治療方法)for 　　13　　 well－the medicine in plants and pure air．He saw that an animal with a 　　14　　 could often be 　　15　　 resting in a cool place, eating nothing and often drinking a lot until the fever was gone．

(1)
[　　]

A．

material

B．

liquids

C．

chemistry

D．

vapour

(2)
[　　]

A．

uncovered

B．

made

C．

found

D．

produced

(3)
[　　]

A．

do

B．

get

C．

complete

D．

practice

(4)
[　　]

A．

comes

B．

goes

C．

reaches

D．

keeps

(5)
[　　]

A．

have

B．

remain

C．

keep up

D．

continue with

(6)
[　　]

A．

usual

B．

uncommon

C．

comfortable

D．

easy

(7)
[　　]

A．

hurt

B．

wounded

C．

eaten

D．

damaged

(8)
[　　]

A．

Unless

B．

However

C．

Even though

D．

Because

(9)
[　　]

A．

native

B．

national

C．

natural

D．

nation

(10)
[　　]

A．

cure

B．

develop

C．

raise

D．

cause

(11)
[　　]

A．

wait

B．

think

C．

long

D．

care

(12)
[　　]

A．

almost

B．

mainly

C．

also

D．

hardly

(13)
[　　]

A．

growing

B．

getting

C．

turning

D．

becoming

(14)
[　　]

A．

disease

B．

wound

C．

fever

D．

cold

(15)
[　　]

A．

watched

B．

found

C．

stared

D．

uncovered

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    A．The conscious intent of attracting birds.     B．Spreading by walking.

   C．Spreading by flying.                    D．The strategy of taking a lift.

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    B．To show strawberry’s special way.

    C．To show the plant has different ways of spreading seeds.

    D．To show the mystery of plant.

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    A．How animals disperse offspring.           B．How plants disperse their offspring.

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    D．To show the mystery of plant.

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