The Olympics教案

二.閱讀理解。
scientists are trying to make deserts into good land again. they want to bring water to 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 deserts all the time. scientists may not be able to change the desert. scientists think that people make deserts. people are doing bad things to the earth.
some places on the earth don’t get very much rain. but then still don’t become desert. this is because some green plants are growing there. small green plants and grass are very helpful to dry places. plants don’t let the hot sun make the earth even drier. plants don't let the wind blow the earth aways. when a little bit of rain falls, the plants hold the water. without plants, the land can become a desert much more easily.
1.why can the land become a desert?
a. some places don’t get very much rain.
b. plants don’t let the hot sun make the earth even drier
c. people don’t keep the earth well.
d. scientists have learnt enough about the deserts.
2.scientists _______ to make the deserts into good land again.
a. carry water  b. grow food   c. doing nothing  d. study a lot
3. which is not true?
a. the land never stops becoming deserts.
b. scientists ask the people to live in the deserts and grow food there.
c.people do bad things to the earth.
d. scientists may not be able to change the deserts.
4. why are green plants and grass helpful?
a. they can hold the water.
b. they can stop the wind from blowing the earth away.
c.they can keep the earth wet.
d. all the above.
5. which is the best title for the passage?
a. the desert problem  b. people make deserts
c.green plants and grass  d. the desert, the plants and the earth
6. 找出短文中不認(rèn)識(shí)的單詞，寫(xiě)下來(lái)。
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7.找出短文中重點(diǎn)的固定搭配，寫(xiě)下來(lái).
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【課后鞏固】
  這一節(jié)課你學(xué)到了什么？用英語(yǔ)來(lái)描述一下（幾句話很簡(jiǎn)單，認(rèn)真做吆）
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