2021年4月24日雅思考试阅读机经真题部分答案 关于这个问题下面小编就来为各个考生解答下。
2021年4月24日雅思考试阅读机经真题部分答案
Passage 1
Topic
Dugongs, sea cows
1-5为填空题
Dugongs are found in North Australia and South-east Asia. They favor seagrasses that are rich in 1 nitrogen. These seagrasses grow in shallow coastal waters with the availability of light.
Dugongs have long upper li with a lot of 2 sensory bristles. As they move, they leave clear 3 trails on the seabed, and tiny 4 tufts of seabed remains. The sea-grass species
favored by dugongs are those come back most 5 quickly.
6-9为判断题
6. Larger dugongs compete with smallr ones.
7. Dugongs rarely come back to the same grazing area.
8. It took more than 10 years for the re growth of seagrass after a storm damage.
9. Dugongs need to eat almost constantly.
10-13为填空题
10 Name one sea animal that resembles dugongs.
11 Approximately how many dugongs lived around Hervey Bay in 1992 before the
cyclone?
12. Name one factor that explain the movement of dugongs within seagrass areas.
13. Which human activity is most harmful to the dugongs?
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