What is the main idea of the first two paragraphs
A: Green plants are very important to dry places.
B: Land is becoming desert faster than scientists can change it back into good land.
C: If scientists can bring water to desert, people can live and grow food there.
A: Green plants are very important to dry places.
B: Land is becoming desert faster than scientists can change it back into good land.
C: If scientists can bring water to desert, people can live and grow food there.
举一反三
- Which of the following is NOT the reason why small green plants are very important to dry places A: They keep the earth from becoming even drier. B: They do not let wind blow the earth away. C: They add color to the dry places. D: They hold water.
- 当desert表示dry land with little or no vegetation时，重音在the first syllable；当desert表示to leave empty or alone时，重音在the second syllable.
- Seals appear clumsy on the land, _______are able to move short distances faster than most people can run. A: which they B: but they C: they D: which
- In the desert, water is always very important. Instead of lawns, like green grass, people will just have, like a cactus or other dry area plant life there._________
- Nothing can grow<br/>in _____. A: dessert B: desert C: desserts D: deserts