Teenagers are known for being creative and full of new ideas. Let’s have a look at these teenage inventions that might change the world.

Banana leaves usually go bad in two or three days. Tenith Adithyaa, a teenager from India, used UV to make the leaves stay fresh for a year. Tenith thinks that one day the leaves will be used for making plates, cups and other things.

David Cohen, an American teenager, built an earthworm(蚯蚓) robot. It is able to go into the smallest places, where humans or dogs can’t go. It will be used for finding people in a fire or an earthquake.

Remya Jose, a 14-year-old from India, found it tiring and boring to handwash clothes in the nearby river. She reused some bicycle parts and created a washing machine that saves time, energy and keeps people fit at the same time.

Kenneth Shinozuku, a 15-year-old from New York, noticed that his grandfather who got Alzheimer＇s disease（老年癡呆） would often leave home and get lost. So he invented the wearable sensors(感應(yīng)器)to help people find their family members like his grandfather.

1.What is the passage mainly about?

A. Popular ads

B. Useful machines

C. Strange pictures.

D. Teenage inventions

2.The earthworm robot by David Cohen can ______.

A. make things stay fresh

B. help people wash clothes

C. go into the smallest places

D. take care of the old people

3.Which of the following is TRUE

A. Plates and cups are made of fresh banana leaves.

B. Remya's washing machine can also keep people fit.

C. David Cohen is a middle school student from India.

D. Kenneth's wearable sensors will keep old people at home.

1.D 2.C 3.B 【解析】短文展示了青少年的4項(xiàng)發(fā)明創(chuàng)造。如何使樹葉保鮮；蚯蚓機(jī)器人；自行車部件改裝的洗衣機(jī)；可穿戴的傳感器。 1.主旨大意題。根據(jù)表格前面的句子“Let’s have a look at these teenage inventions that might change the world.” 讓我們來看看這些可能改變世界的青少年的發(fā)明�？芍涛恼�...
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C. NS Teens magazine is well-known for its articles on the wildlife and environment. It also has articles on the history and culture of many other countries.

D. No journalists (新聞?dòng)浾? write for Teen Voice. This magazine depends completely on articles sent in by its teenage readers. It gives young people the opportunity to publish their creative work, such as poems or short works of fiction. They can also write reviews (評(píng)論) on the latest music CDs.

E. Top Teens is easy to read and full of color photos. It offers advice on fashion and beauty. But most of its pages are about interviews with the popular, well-known stars of screen, music and sport.

F. The only environmental magazine written by teenagers for teenagers is Young WB. Readers are invited to send their articles and photos to the magazine. The magazine also has many special offers and competitions.

G. Teenplus is very different from other teen magazines that simply offer articles on pop stars and fashion. This exciting new magazine tells readers about what is happening in the world. It also offers all kinds of reviews on recent books, movies and music CDs.

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