题目内容
根据短文内容，从短文后的选项中选出适当的选项补全短文。
The earth is about 4,600 million years old. We humans have lived on the earth for only 35,000 years, but during this period we have changed our planet a lot in many ways. 1
All over the world, people have cut down millions of trees, so more and more kinds of animals and plants are disappearing. In big cities, cars and buses have polluted the air. Factories have also polluted the land and the water.
2 It is important to the earth. But now air pollution is destroying it and that has made a very big hole in the ozone layer (臭氧层). 3 This is very dangerous because it can cause cancer.
Carbon dioxide (CO2) in the air has increased a lot. 4 it has formed a "blanket" (毛毯) around the each. 5 This makes our earth become warmer and warmer. Therefore, this causes the level of the ocean to rise.
All these problems are very serious. We must do something to stop our earth from being polluted anymore.
| A. The heat from the sun can' t escape, so the temperature is rising. B. Too much harmful light from the sun passes through it and reaches the earth directly, C. Some things we've done are very good for the earth while some are bad. D. Around the earth, there’s a special kind of oxygen (O2) called "ozone" (O3). E. It mainly comes from different kinds of burning materials. |
【小题1】C
【小题2】D
【小题3】B
【小题4】E
【小题5】A
解析
口算心算速算应用题系列答案
同步拓展阅读系列答案Around the world more and more people are taking part in dangerous sports and activities._______ 【小题1】_________---those who have climbed the highest mountains, traveled into unknown parts of the world or sailed in small boats across the greatest oceans.
_____【小题2】______I would consider bungee(蹦极) jumping to be a good example of such an activity. You jump from a high place(perhaps a bridge or a hot-air balloon) 200 meters above the ground with an elastic(有弹性的) rope tied to your ankles. You fall at up to 150 kilometers an hour until the rope stops you from hitting the ground.______ 【小题3】______ Other activities which most people would say are as risky as bungee jumping include jumping from tall buildings and diving into the sea from the top of high cliff(悬崖).
For the reasons, some psychologists explain that many people think their life in modern societies has become safe and boring. _________【小题4】__________They had to go out and hunt for food, diseases could not easily be cured, and life was a continuous battle (战争)for survival.
Nowadays, according to many people, life offers little excitement. They live and work in comparatively safe conditions; they buy food in shops; and there are doctors and hospitals to look after them if they become ill.___ 【小题5】__________
| A. Not very long ago, people’s lives were constantly (持续的) in danger. B. Now, however, there are people who look for an immediate excitement from a risky (冒险的) activity which may only last a few minutes or even seconds. C. The answer for some of these people is to look for danger in activities such as bungee jumping. D. Of course, there have always been people who have looked for adventure (冒险). E. It is said that about 2 million people around world have now tried bungee jumping. |
阅读短文，根据短文内容，从短文后的六个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。（共8分，每小题2分）
As you grow rapidly through your teenage years, you will experience a lot of changes. The changes may seem difficult. 1 Don’t panic! You will deal successfully with them! You are a young adult now!
With more responsibility, you will find more freedom to make your own choices. This is a time to be well informed about making choices. In this way you can make healthy balanced decisions. 2 You may already know your career path or you may have no idea at all what you want to do. Both situations are fine! Work hard and the right opportunity will present itself to you.
Young adulthood means greater freedom and more choices. 3 But try not to shut your family out of your life. You should learn to think of others even though you are old enough to look after yourself.
It is also perfectly natural at this time for you to spend more time with your friends than your family. Choose your friends wisely. A true friend will stand by you no matter what happens.
This period is a part of the life cycle. There are some people who will be with you throughout life’s journey. There will be some people with whom you part and go separate ways. Leaving school can be hard. The reality is that you may not even see all of your classmates again.
You are a young adult. It is your life. No one can live it for you. 4 So making the right choices will be important to you. Life is for living. Enjoy your life wisely.
| A. They will help shape the future. B. They may seem to happen quickly. C. You will probably want to be independent. D. You may appreciate what you have in your own life. E. The choices that you make from now on will be your choices. F. Your family has been with you since you came into this world. |
