Kids will be ______ about everything when the...

Kids will be ______ about everything when they reach a certain age.

A. anxious　　　 B. curious

C. cautious　　 D. conscious

高三英语单项填空中等难度题查看答案及解析

It is said that many kids are worried about the year 2012, , they think the earth will be destroyed by disasters.

A. when           B. where            C. as               D. which

高三英语单项填空中等难度题查看答案及解析

It is said that many kids are worried about the year 2012, _____ , they think the earth will be destroyed by disasters．

A．where                B．as                       C．when             D．which

高三英语单项填空中等难度题查看答案及解析

As they reach school age, about 90 percent of children will have experienced a condition in which fluid (液体) fills the middle ear, muffling (使模糊) sound and sometimes causing infection. The fluid usually clears on its own, but if not, it can lead to a painful ear infection called acute otitis (中耳炎) media. In some cases the fluid can persist for more than a year, causing hearing loss during this period, and slowing down their development of language and social skills.

Diagnosis usually requires a visit to a specialist—but researchers have now developed an app that detects this fluid just as accurately, with only a smartphone and a paper funnel (漏斗).

Doctors typically detect the problem by peering into the ear for a visual assessment. Yet, this method has only a 50 percent accuracy rate. “Right now, if you bring your child to a pediatrician, or to any urgent care family doctor, the way they look at whether or not there’s fluid in the middle ear is by looking at the eardrum,” says Sharat Raju, a surgeon in the department of head and neck surgery at the University of Washington.

For a cheaper and more accessible alternative, researchers at the University of Washington turned to smartphones. First the user follows a template to cut and tape a piece of paper into a funnel, which can be placed between a smartphone and the patient’s ear. Next the app plays a chirping sound through the phone’s speaker; the sound waves bounce off the eardrum and hit the phone’s microphone, where they register and are analyzed by the app. An eardrum with fluid behind it will vibrate (振动) differently than if the middle ear is full of air, as it normally is.

To develop the app, the researchers first played chirps for patients with and without fluid in their ears. They recorded the echoes (回音), which indicate the eardrum’s mobility. Then they used a machine learning model to classify the returning sound waves, determining which audio characteristics indicated a normal ear and which suggested the presence of fluid. Once they tested the app on 98 children, ranging from 18 months to 17 years old, at Seattle Children’s Hospital. It correctly detected fluid in 85 percent of cases, and correctly identified fluid-free ears in 82 percent.

The researchers are currently trying to get FDA approval for the app, and have founded a company to commercialize it. They hope to make it available by the end of the year, to help parents track children’s ear health at home.

1.What do we know about the fluid from the first paragraph?

A.It is mostly part of children’s growth. B.It is unavoidable for any child.

C.It is a permanent physical condition. D.It is beyond any medical means.

2.What does the underlined word “pediatrician” refer to in Paragraph 3?

A.A hospital. B.A specialist.

C.A relative. D.An app.

3.What is the fourth paragraph mainly about?

A.The application of the app. B.The causes of the kid’s ear problem.

C.The purpose of developing the app. D.The experiment of the smartphone.

4.What do the researchers expect of the app?

A.It will upgrade the medical technology. B.It will hit the market in the near future.

C.It will help children do better academically. D.It will save doctors medical operations.

高三英语阅读理解中等难度题查看答案及解析

This weekly four-day physical activity schedule will get your kids excited about being active.

Tuesday

When the kids get home from school, don’t let them go straight to the TV and get settled in. Encourage them to get moving and get off the couch(沙发) by giving them a pedometer(计步器). Pedometers are the most fun when parents also use one because that turns stepping, walking and running into a game to see who can get the most steps.

Thursday

The kids have done a great job so far this week, but now they long for a little more TV time. Instead of turning on cartoons, let them watch fitness movies made just for kids. These movies encourage watchers to get up and dance along to kid-friendly music.

Saturday

Get the whole family out of the house together and over to a park. Bring lots of sports equipment, pack a healthy picnic and have a family competitive sports day. Kids and adults get into groups and play against each other in tennis, basketball or soccer. After everyone has played hard for a couple of hours, stop for a picnic and then if your family isn’t too tired, go back and play some more.

Sunday

Every child loves to play video games and there is no better time to allow kids to play them than on Sunday when no homework is due. But don’t let them play a game that forces them to sit down for hours. Dance games with a floor mat(垫子) to help kids follow the dance moves are popular to kids.

1.Parents are advised to use a pedometer together with their kids because _______.

A. they can give their kids some advice about walking

B. it can prevent them from watching TV too much

C. their kids will not use it if they don’t

D. this will allow them and their kids to have a fun competition

2.On Thursday when a kid wants to watch TV, his parents should ______.

A. let him watch it for a short time　　 B. show fitness movies to him

C. take him out for a walk instead　　 D. watch cartoons with him

3.According to the author, the best time for a kid to play video games is ______.

A. Sunday　　 B. Tuesday

C. Saturday　　 D. Thursday

高三英语阅读理解中等难度题查看答案及解析

What does the woman mean?

A.Their kids will be a great help.

B.They will work harder than now.

C.She hardly has time to clean the house.

高三英语短对话中等难度题查看答案及解析

―When will the visa be ready, sir?

―______ everything goes well, you will get it in 14 workdays.

A. Although                B. As far as                  C. Unless                     D. As long as

高三英语单项填空中等难度题查看答案及解析

The meeting will be held in half an hour, but they haven't got everything ready_____.

高三英语单项填空简单题查看答案及解析

Brain who serves as manager of the company hopes that everything will be better when he quits than when he_______.

A．has started        B．starts             C．started           D．will start

高三英语单项填空中等难度题查看答案及解析

—When will the visas be ready, sir?

—________ everything goes well, you should get them in 14 workdays.

A. Although       B. As far as         C. Unless   D. As long as

高三英语单项填空中等难度题查看答案及解析