Question

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（老年痴呆） would often leave home and get lost. So he invented the wearable sensors(感应器)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.

Answer

1.D

2.C

3.B

【解析】

短文展示了青少年的4项发明创造。如何使树叶保鲜；蚯蚓机器人；自行车部件改装的洗衣机；可穿戴的传感器。

1.主旨大意题。根据表格前面的句子“Let’s have a look at these teenage inventions that might change the world.” 让我们来看看这些可能改变世界的青少年的发明。可知短文展示了青少年的一些发明创造，故答案选D。

2.细节理解题。根据表格第二栏中的句子“David Cohen, an American teenager, built an earthworm(蚯蚓) robot. It is able to go into the smallest places,”可知，David Cohen的蚯蚓机器人可以进入最小的地方。故答案选C。

3.判断正误题。根据表格第三栏中的句子“She reused some bicycle parts and created a washing machine that saves time, energy and keeps people fit at the same time.” 雷米发明的这种洗衣机也能让人们保持健康。故B答案正确。