We often hear people say the lion is the king of the forests because it’s stronger and moredangerous than the other animals.It can run faster than most other animals.The lion is the highest animals in the land food chain(食物链).In the sea,the s

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We often hear people say the lion is the king of the forests because it’s stronger and moredangerous than the other animals.It can run faster than most other animals.The lion is the highest animals in the land food chain(食物链).In the sea,the s
We often hear people say the lion is the king of the forests because it’s stronger and more
dangerous than the other animals.It can run faster than most other animals.The lion is the highest animals in the land food chain(食物链).In the sea,the shark is at the top of the food chain.It can swim faster than most other sea animals.It can also use its big teeth to catch other sea animals for food.What is at the top of the world’s food chain?Human beings are!We are not the biggest or fastest in the world,but we are the cleverest.We could not run faster than most animals,so we made cars,planes and now we can move the fastes.We could not fight better than a lion,so we made guns(枪).It is important for people to keep the balance of nature.For example,m any years ago in the north of China,people killed a lot of wild wolves.The wild wolves usually eat wild rabbits.But a few years later,the number of wild rabbits was becoming bigger and bigger because the number of wild wolves was getting smaller and smaller.The wild rabbits shared the grass with sheep and cows.Much of the grassland became desert(沙漠).Remember that we are part of the food chain,so we are in danger too.If we protect animals,We are protecting ourselves.
( )1.How many kinds of food chians does the writer tell us in the passage?
A Two B Three C Four D Five
( )2.Human beings are at the top of the world’s food chain because ______.
A they can use guns B they are the biggest C they are the cleverest D they can drive cars
( )3.What does the underlined word “balance” mean in Chinese?A 平衡 B 能量 C 完整 D 形状 ( )
4.Which is the underlined word “balance” mean in Chinese?More and more wild rabbits ate much grass ② Many years ago in the north of China,people killed a lot of wild wolves③ Much of the grassland turned into desert ④ The number of wild wolves was becoming smaller and smaller.A ②①④③ B ④③②① C ①②④③ D ②④①③
( )5.From the passage,the writer tells us ________.A to make more cars B not to eat animals C to protect animals D not to keep the food chain