知识点二 support况支持2. 空气.食物和水是维持生命所不可缺少的.Air,food and water are necessary to . 题目和参考答案——青夏教育精英家教网—

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知识点二 support况支持

2. (翻译) 空气、食物和水是维持生命所不可缺少的。

Air,food and water are necessary to .

2. support life

题目来源：2016年金钥匙课时学案作业本八年级英语下册江苏版 > 第 1 课时 Comic strip & Welcome to the unit

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七、任务型阅读。(10分) The first things to live were protists (原生生物). They started life about 3 ,000 million years ago. Then plants began about 500 million years ago. And then dinosaurs began about 200 million years ago. Apes (猿人) developed 35 million years ago.

Humans and apes developed from the same animals. About 14 million years ago,some apes began walking with two legs. Then two million years ago,humans learned to make tools. No one knows when humans first started to use language,but many scientists believed that humans started to speak around 70 ,000 years ago. However,we do know when humans vStarted to paint the walls of their caves (洞穴) ：The first cave paintings are around 40 ,000 years old. It was only about 10 ,000 ，

years ago that humans learned how to grow plants and then they became farmers.

1	2
3,000 million years ago	Protists 3 life.
200 million years ago	4 began.
14 million years ago	Some 5 started to walk with two legs.
70,000 years ago	Humans started 6 .
40,000 years ago	Humans started to 7 the walls of their 8 .
9 years ago	Humans learned to grow 10 .