Question

Scientists are trying to make the deserts ,which get very little rain, into good land again. They want to bring water to the deserts，so people can live and grow food. They are learning a lot about the deserts. But more and more of the earth is becoming desert all the time. Scientists may not be able to change the desert in time．
Why is more and more land becoming desert？Scientists think that people make deserts．People are doing bad things to the earth against the scientists’ wish．
Some places on the earth don’t get much rain. But they still don’t become deserts．This is because some green plants are growing there．Small green plants and grass are very important to dry places．Plants don’t let the sun make the earth even drier． Plants do not let the wind blow the dirt away．When a bit of rain falls，the plants hold the water. Without plants, the land can become desert more easily．
小題1:Deserts ____________ ．

A．never have any plants or animals in them

B．can all be turned into good land before long

C．a(chǎn)re becoming smaller and smaller

D．get very little rain

小題2:More and more land is becoming desert  because____________．

A．plants can’t grow there

B．there is not enough rain

C．people haven’t done what scientists wish them to do

D．scientists know little about the deserts

小題3:Small green plants are very important to dry places because ________

A．they don’t let the sun make the earth even drier

B．they don’t let the wind blow the soil away

C．they hold water

D．All of the above．

小題4:After reading this passage, we learn that _____________ ．

A．plants can keep dry land from becoming desert

B．it is good to get rid of the grass in the deserts

C．a(chǎn)ll places without much rain will become deserts

D．it is better to grow crops on dry land than to cut them

Answer 1

小題1:D
小題2:C
小題3:D
小題4:A

試題分析：根據(jù)文章內(nèi)容可知植物對(duì)于水土保持的重要性。
小題1:D 細(xì)節(jié)題。根據(jù)第一段第一句Scientists are trying to make the deserts ,which get very little rain說明D正確。
小題2:C 推理題。根據(jù)第二段最后一句People are doing bad things to the earth against the scientists’wish。說明人們的做法違背了自然規(guī)律，故C正確。
小題3:D 細(xì)節(jié)題。根據(jù)文章第三段2,3,4行．Small green plants and grass are very important to dry places．Plants don’t let the sun make the earth even drier． Plants do not let the wind blow the dirt away．When a bit of rain falls，the plants hold the water.說明ABC三項(xiàng)都是Small green plants的作用，故D正確。
小題4:A 推理題。根據(jù)文章第三段內(nèi)容可知植物對(duì)于水土保持是非常重要的。故A正確。
點(diǎn)評(píng)：對(duì)于環(huán)保類短文考生已經(jīng)非常熟悉，注意細(xì)節(jié)題的把握和理解，提升推理能力。