内容正文:
作业练习
课程基本信息
学科
英语
年级
八年级
学期
秋季
课题
Unit 7 The natural world (Welcome to the unit)
作业练习
一、观察下图,从方框中选择对应的生态系统类型填入横线处。
二、根据你所了解的有关生态系统的知识,完成下面的对话。
A: Do you know anything about ecosystems?
B: Yes! I know that …
A: Oh, really? Do you know anything about …?
B: Well, … cover about … of the earth’s surface.
A: Yes, they are home to ...
B: It’s true. They help …
三、请根据所学知识或查阅资料,填写以下关于生态系统的表格。
Ecosystem
Climate
Common animals or plants
Deserts
...
...
练习答案
一、观察下图,从方框中选择对应的生态系统类型填入横线处。
rainforest ecosystem; desert ecosystem; grassland ecosystem; polar ecosystem; ocean ecosystem
二、根据你所了解的有关生态系统的知识,完成下面的对话。
A: Do you know anything about ecosystems?
B: Yes! I know that rainforests are home to over half of all the types of animals and plants on earth.
A: Oh, really? Do you know anything about oceans?
B: Well, oceans cover about 71% of the earth’s surface, making them the largest ecosystem on earth.
A: Yes, they are home to many animals like sharks, whales, and turtles.
B: It’s true. They help balance Earth’s climate and give food to many animals and humans.
三、请根据所学知识或查阅资料,填写以下关于生态系统的表格。
Deserts—hot during the day, cold at night—camels and cactus
Wetlands—wet—frogs, birds, fish and water plants
Rainforests—warm and wet—monkeys toucans and giant trees
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