Some children cannot wait to grow up. Because once you become an adult, you are free to make your own decisions. More importantly, you can do all those things that you cannot do now because you are too young. So, the question is, ‘At what age do you really become an adult?' Well, people become adults at different ages in different places.

In Australia, the 18th birthday is a very important event for young Australians because it means they can do almost anything they want. They can vote, learn to drive a car, get married, join the army and even buy their own houses. However, even if they can do all these things, most Australians have to wait until their 21st birthday to really celebrate becoming an adult. This is the traditional adult age not only in Australia, but also in the USA and the UK. It is their first year of true independence (独立).Traditionally, people were given a key to their houses by their parents when they turned 21, meaning they could come and go as they like.

Even though 21 is the traditional adult age in many English-speaking countries, the law nowadays is different in each country. In the UK, you can join the army at 16 and even get married at 16 if your parents allow. Young people in the UK can learn to drive a car at 17 as in Australia, although they have to wait until they are 18 to vote.

In China, there is a different age for each of the stages of becoming an adult. You can vote and learn to drive a car when you are 18, but if you want to get married, women have to wait until they are 20 and men until they are 22. Chinese people celebrate important birthdays every 10 years--so when young people turn 20, they can expect a big party!

No matter what age you are, becoming an adult is really about learning how to be independent and responsible(负责任的). Once you are finally able to take care of yourself and make your own decisions, then you can say that you are truly all grown-ups.

1.Which of the following are truly adults according to the passage?

A. Independent grown-ups.      B. Married people.

C. People who can drive.      D. People in the army.

2.At what age do Australians really become adults?

A. 17.      B. 18. C. 20. D. 21.

3.What is the writer’s opinion about the age people become adults?

A. The age people become adults depends on whether they can vote or not.

B. The age people become adults depends on their own independence and responsibility.

C. The age people become adults depends on if they are eighteen years old.

D. The age people become adults depends on when they get the key to their houses.

4.Why do people in Australia get the key to the houses when they really become adults?

A. Because the law decides it.

B. Because they can leave when they want.

C. Because they can come home when they want.

D. Because it is a tradition.

5.What are adults free to do according to the passage?

A. They are free to decide when to celebrate their own birthdays.

B. They are free to look after themselves well.

C. They are free to make their own decisions.

D. They are free to make time move faster.

Have you ever heard of “a ball of energy”? People often use it to describe very active children. But today we tell about the soccket, something that is a real soccer ball of energy. Julia Silverman and Jessica Matthews developed the soccket as part of a group project for an engineering class at Harvard University.

There are mechanisms (装置) in a soccket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment. Then the user can put something directly into the ball, like a lamp, or a mobile phone charger so that they can get energy from it. For every fifteen minutes of the game play, the soccket can provide enough electricity for an LED lamp for three hours, and the ball can store (储藏) up to 24 hour’ electricity.

The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in sub-Saharan Africa and in India and other countries in Asia.

Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortages are a serious problem in really areas. There’s an energy crisis in the world. One out of every five people in the world don’t have any electricity. And besides that, there are a lot of health problems because without electricity, people have to use something like kerosene (煤油) lamps, which produce a lot of smoke.

Julia Silverman says the soccket ball is one small solution to a big problem. Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world’s most popular sport and get some energy in return.

1.From the passage, we know the soccket is _____.

A. a game B. an invention C. an energy D. a lamp

2.If you play the soccket for half an hour, it can provide an LED lamp with electricity for _____.

A. fifteen minutes B. half an hour C. six hours D. three hours

3.The underlined word “crisis” in the passage means _____.

A. a time of safety B. a time of difficulty C. a time of success D. a time of illness

4.We can infer (推断) from the passage that _____.

A. Julia Silverman has never been to developing countries before

B. people all over the world will use the sOccket soon

C. kicking a soccket makes the energy disappear into the environment

D. people are expected to get some energy by playing soccket

5.The best title for the passage should be “________”.

A. How to Make Electricity B. How to Deal With Energy Crisis

C. A Soccer Ball That Gives Energy D. An Energy Shortage in the World

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