We sometimes call the lion “the king of the jungle (丛林)” because it is stronger and more dangerous than other animals. It can run faster than many animals and it can hunt (捕猎) the best. It is the highest animal in the 21 food chain (食物链).[
In the sea, the shark is one of the animals at the 22 of the food chain. It can swim faster than most other sea animals, and it can use its big teeth to eat them.
What is at the top of the world’s food chain? 23 are! We are not the biggest or fastest, but we are the 24 We could not run faster than cheetahs (猎豹), so we 25 cars and now we can move the fastest. We could not 26 better than lions, so we invented guns (枪). Now we can hunt the best.
People’s inventions are clever, but they can be dangerous, too. For example, people invented 27 , and now they make the air and rivers dirty. This can make 28 changes. Dirty rivers kill fish. Then bears cannot eat the fish and the bears die. If we kill one part of the food chain, 29 also die. Remember that we are a part of the food chain, so we are in danger too! If we protect animals, we are protecting 30 ! We should and we could do something for the world!
【小题1】A．landB．seaC．mountainD．desert【小题2】A．frontB．endC．topD．beginning【小题3】A．PeopleB．LionsC．SharksD．Cheetahs【小题4】A．strongest B．cleverestC．most specialD．most important【小题5】A．used B．hadC．madeD．invented【小题6】A．fightB．escapeC．killD．catch【小题7】A．hotelsB．schoolsC．factoriesD．hospitals【小题8】A．greatB．terribleC．wonderfulD．plete【小题9】A．one partB．another partC．other partsD．the other parts【小题10】A．ourselfB．yourselvesC．themselvesD．ourselvesA
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(答案→)A
解析：
【小题1】A。考查名词，根据上文可知，狮子应该属于陆地食物链上的一员。
【小题1】C。鲨鱼是高级动物，应处在食物链的上端。
【小题1】A。食物链的最高级应是人类，故选A.
【小题1】B。根据句意理解。
【小题1】D。根据下文内容we invented guns (枪). Now we can hunt the best.来推断。
【小题1】A。由此句we invented guns (枪). Now we can hunt the best.来推断。
【小题1】C。有句意可知，工厂制造污染，损害环境
【小题1】B。生存环境发生恶劣变化。
【小题1】C。生物链结构有一处发生变化，其他地方也受影响。
【小题1】D。此题考查反身代词。保护环境，保护动物就是保护我们自己。