题目内容

【题目】

BackJoy Orthotic Seat: Easy, Drug-Free Relief from Back Pain

Why BackJoy?

BackJoy is an innovative device that provides relief from back discomfort by aiding in maintaining your posture (姿势) anywhere you sit, hard or soft seats.

● Proven effective over 2.0 million units sold, durable to provide long-lasting support

● Recommended by doctors and nurses

● Safe and effective a natural alternative

Back Pain Is A Problem!

● We average over 9+ hours of sitting each day!

● 80% of adults will suffer from back pain in their life

● Back pain is the No. 2 reason for visiting the doctor

● Mom was right: “Sit up straight!”

How to use

BackJoy is made small on purpose. It is designed to cradle the space around the two sitting bones at the base of your pelvis and must be smaller than your buttocks to do so.

● Sit on top of it

Handle goes in front and between your legs

● Pull it tight & cup to fit

Feel it cup & lift your hips above the seat from below you

1Which of the following statements is True?

A. You will be free of back pain after you use BackJoy.

B. Most of the users will experience immediate relief.

C. 94% of the doctors and nurses recommend it to others.

D. A majority of adults experience pain back in their life.

2It can be inferred that______.

A. BackJoy doesn’t work on soft couches

B. BackJoy works for any health condition

C. BackJoy can help users to adjust the way they are sitting

D. BackJoy doesn’t work for adults weighing less than 90lbs

【答案】

1D

2C

【解析】

本文是一则广告。大多数成年人在生活中都经历过背痛。文章介绍了一个治疗背疼的新产品BackJoy。它可以帮助用户调整他们的坐姿。

1推理判断题。根据文中80% of adults will suffer from back pain in their life可知,大多数成年人在生活中都经历过背痛。故选D

2推理判断题。根据How to useIt is designed to cradle the space around the two sitting bones at the base of your pelvis and must be smaller than your buttocks to do so.可知,可以推断,BackJoy可以帮助用户调整他们的坐姿。故选C

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【题目】Printable Tags Turn Everyday Objects into Smart Devices

Engineers have developed printable metal tags (标贴) that could be attached to everyday objects and turn them into smart Internet of Things devices.

The metal tags are made from copper foil (铜箔) printed onto thin, flexible, paper-like materials to reflect WiFi signals. The tags work essentially like “mirrors” that reflect radio signals from a WiFi router. When a user’s finger touches these “mirrors”, it disturbs the reflected WiFi signals in such a way that can be remotely sensed by a WiFi receiver like a smartphone.

The tags can be nailed onto objects that people touch every day, like water bottles, walls or doors. These objects then become smart and connected devices that can signal a WiFi device whenever a user interacts with them. The tags can also be shaped into thin keypads or smart home control panels that can be used to remotely operate WiFi-connected speakers and other Internet of Things devices.

Xinyu Zhang, a professor of electrical and computer engineering, named the technology LiveTag. He pictures people using LiveTag technology to track human interaction with everyday objects. For example, LiveTag could potentially be used to assess the recovery of patients who have suffered from stroke (中风). “When patients return home, they could use this technology to provide data based on how they interact with everyday objects at home, whether they are opening or closing doors in a normal way, or if they are able to pick up bottles of water, for example. The amount, intensity and frequency of their activities could be recorded and sent to their doctors to evaluate their recovery,” said Zhang. “And this can all be done in the comfort of their own homes rather than having to keep going back to the clinic for frequent testing,” he added.

The researchers note several limitations of the technology. LiveTag currently cannot work with a WiFi receiver further than one meter away, so researchers are working on improving the tag sensitivity and detection range. Ultimately, the team aims to develop a way to make the tags using normal paper and ink printing, which would make them cheaper to mass produce.

1When people touch a printable metal tag, .

A. they are actually touching a mirror

B. the WiFi router will stop sending signals

C. the reflected WiFi signals will be disturbed

D. their fingers can be sensed by a WiFi router

2LiveTag can probably be used to .

A. precisely locate everyday objects

B. remotely control a WiFi-connected TV

C. easily block signals from WiFi devices

D. greatly improve one’s physical condition

3LiveTag helps stroke patients by .

A. evaluating the process of their recovery

B. sending data of their activities to doctors

C. connecting their smartphones with doctors’

D. recording doctors’ assessments of their recovery

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