问题 选择题

人类活动对生物圈有很大的影响,下列说法正确的是

A.森林和草原是重要的生态系统,改善生态环境需要保护和建设森林生态系统和草原生态系统

B.古人有“黄河之水天上来”的诗句,说明黄河水滔滔不绝,不需要保护

C.自然界中的物质是十分丰富的,人类砍伐森林不会产生影响

D.解决生态环境的问题是政府和科学家的事,与中学生无关

答案

答案:A

题目分析:A、森林生态系统分布在湿润或较湿润的地区,其主要特点是动物种类繁多,群落的结构复杂,草原生态系统分布在干旱地区,这里年降雨量很少. 森林和草原是重要的生态系统,改善生态环境需要保护和建设森林生态系统和草原生态系统,符合题意.

B、古人有“黄河之水天上来”的诗句,说明黄河水滔滔不绝,生态平衡被破坏的直接原因是工业生产带来的环境污染,因此要好好保护,不符合题意.

C、自然界中的物质是十分丰富的,人类砍伐森林会产生影响生态系统,不符合题意.

D、我们每个人都应该积极地加入环境保护的行列.如不随手扔垃圾、垃圾分类,少用塑料袋、节约用水、少用含磷洗化用品、骑自行车等.

阅读理解

What did you dream about last night? Did your teeth fall out or did you fly? Maybe you died or someone you know did.Or maybe you were back in high school.These are among the most common dreams people have and they all mean something.Here are some of the most common dreams and their interpretations or symbolism.

Dreams of flying.Dreams of flying represent feelings of freedom that may result from an instance when you overcome a limitation or obstacle.Usually, children have more flying dreams than adults, because children are more open to their possibilities, and adults have often accepted limitations imposed by society.

Teeth falling out.Food in a dream is symbolic of knowledge because food nourishes the physical body and knowledge nourishes the soul.Teeth are a means to break down food or knowledge.When your teeth fall out in a dream, it could signify that you feel ill - equipped to break down the knowledge that you have available, that the way you break things down has changed.That change can be either positive or negative.

High school dreams.High school is a place of learning from the past, and dreaming of being unprepared for a high school test can indicate a struggle to access information you need to handle in your life.

Recurring dreams and nightmares.Recurring dreams are your subconscious (潜意识)mind's way of trying to get your attention.A recurring dream is a step down from a nightmare that is a louder, more insistent way your subconscious mind communicates.If you have a recurring dream, try to stop in the dream and identify what the dream is trying to tell you.That could mean asking someone who is chasing you what he or she wants.A woman dreamed for years that an old, haggard woman was chasing her around her home.When she finally stopped in the dream and asked the old woman what she represented, the old woman suddenly turned into a beautiful young woman and replied, "I represent your question of ' what if?’ "

小题1:The text is mainly about ____.

A.high school dreams

B.dreams' symbolism

C.dreams of flying

D.nightmares小题2:After you' ve got out of some difficulties, you might have a ____.

A.high school dream

B.dream of flying

C.dream of teeth falling out

D.a nightmare小题3:If you dream of being unprepared for a "high school test, it means____.

A.you' re trying to learn something

B.you will certainly fail in the test

C.you will be scolded by your teacher

D.you' re not well prepared for the test小题4:The underlined word "identify" in the last paragraph most probably means____.

A.break out

B.recall

C.make out

D.explain小题5:The woman' s dream is mentioned mainly to ____.

A.tell us nothing but an interesting story

B.show us what a nightmare is like

C.tell us that women are always changeable

D.show us the way to deal with a recurring dream

判断题