题目内容
【题目】I guess there must be someone outside the house. Let’s stop to listen.
A、speak B、speaking C、spoke
【答案】B
【解析】试题分析：句意：我猜一定有人正在房子外面讲话。让我们停下来去听听。A、speak 讲话，动词原形；B、speaking 讲话，现在分词；C、spoke讲话，过去式。must be，表示猜测。there be someone／something doing 有人／物正在做某事。故选B。
【题目】
Morpher, the folding bike helmet(头盔) People hate to wear a helmet because it's thick and heavy. Morpher is a bike helmet made from plastics. It is just as strong as the traditional ones, but flexible(灵活的)enough to fold almost totally flat. Also it is much easier to carry. |
Shoes that tie themselves After we see the movie Back to the Future, almost everyone wants a pair of self-tying shoes. Now, thanks to Nike, the shoe dream comes tnie. When you press a button, the shoes can tie themselves. |
The smart alarm clock-Hello Sense An alarm clock , called Hello Sense, can improve your sleep. It can control the temperature, light and even air quality in your bedroom to help you have a perfect sleep environment. And it can record your sleep cycles. |
Sweet potatoes that could save lives The lack(缺乏)of vitamin A can cause blindness and many other illnesses. In sub- Saharan Africa, plant experts are helping them grow a kind of new sweet potatoes. These potatoes can help them fight against some illnesses. |
【1】Morpher, the folding bike helmet is .
A. thick and heavy B. not as strong as a traditional one
C. made from metal D. flexible enough to fold almost flat
【2】The underlined word "button" means " ".
A. 钉子 B. 按钮 C. 图案 D. 形状
【3】The smart alarm clock can NOT .
A. improve our sleep B. control our weight
C. record our sleep cycles D. control the temperature in the bedroom
【4】If a child has a poor eyesight, he may be in the lack of .
A. vitamin A B. vitamin B C. vitamin C D. vitamin D
