九、阅读理解。
A)完形填空。
Trees are our friends. They are useful. They give 1 wood. We can use it to make paper，desks and chairs. Many trees give us fruit. Many people like eating fruit. It helps us 2 healthy. Trees can reduce noise. They can also keep water and soil. Our city looks beautiful 3 trees. Trees 4 help keep the air clean. Trees are important. We shouldn't cut down too many trees. We should protect trees and plant 5 trees. It's good for the Earth and for ourselves.
()1. A. us
B. me
C. you
()2. A. make
B. keep
C. let
()3. A. with
B. of
C. on
()4. A. are
B. too
C. also
()5. A. more
B. much
C. a lot

1.A；2.B；3.A；4.C；5.A

1. 第1题：前文提到“Trees are our friends”，此处指树给“我们”木材，us（我们）符合语境，选A。
2. 第2题：“keep healthy”是固定短语，意为“保持健康”，符合句意，选B。
3. 第3题：with表示“带有”，句意为“有树木的我们的城市看起来很漂亮”，符合逻辑，选A。
4. 第4题：also用于句中表示“也”，此处指树木也能帮助保持空气清洁，too用于句末，are不符合语法，选C。
5. 第5题：more意为“更多的”，可修饰可数名词复数trees，句意为“我们应该保护树木并种更多的树”，符合语境，选A。

B)阅读短文，判断下列句子是否与短文内容相符，相符的写“T”，不相符的写“F”。
Deserts(沙漠) are changing. Sometimes they grow(扩大) bigger. Sometimes they get smaller. The world's biggest desert，the Sahara，is in Africa. Right now，the Sahara Desert is growing fast. Why is the Sahara growing? In some places，people farm too much. In other places，animals eat all the grass. And people also cut down too many trees. All these make the soil weak. Weak soil lets the desert grow. This is a big problem because people cannot grow plants in the desert. People cannot build houses，hospitals or schools in the desert. So people must leave their homes. They must live somewhere else.
How can we change it? Let's plant more trees. We can farm less. These make the soil strong. Maybe the Sahara will stop growing. All of the people in the world should work together to solve the problem.
()1. Deserts can grow bigger and they can also get smaller.
()2. People plant many trees，so the Sahara grows fast.
()3. To have a happy life，people can move their homes to deserts.
()4. It is important to plant more trees and farm less.
()5. The writer lists(列出) three reasons(原因) why the soil becomes weak.

1. T
2. F
3. F
4. T
5. T

1. 依据短文“Deserts(沙漠) are changing. Sometimes they grow(扩大) bigger. Sometimes they get smaller.”，可知沙漠可扩大也可缩小，句子与原文相符，判断为T。
2. 短文提到撒哈拉扩大的原因是人们过度耕种、动物吃光草、砍伐过多树，并非种树多，句子与原文不符，判断为F。
3. 短文表明沙漠里无法种植作物、建造房屋等，人们需离开沙漠而非搬去，句子与原文不符，判断为F。
4. 依据短文“How can we change it? Let's plant more trees. We can farm less. These make the soil strong. Maybe the Sahara will stop growing.”，可知多种树、少耕种很重要，句子与原文相符，判断为T。
5. 作者列出土壤变贫瘠的三个原因：过度耕种、动物吃光草、砍伐过多树，句子与原文相符，判断为T。