Nowadays, many teens are badly addicted to using phones. It probably won’t surprise you that teens are texting more than ever before. Instead of sleeping, Kenny Alarcon, 16, often texts with his frie 题目和参考答案——青夏教育精英家教网—

题目内容

Nowadays, many teens are badly addicted to using phones. It probably won’t surprise you that teens are texting more than ever before.

Instead of sleeping, Kenny Alarcon, 16, often texts with his friends through the night. Frances Garcia, a high school senior, sends and receives about 1000 texts each day. Both Frances and Kenny wake up several times during the night to text. Kenny even sleeps with his phone under his pillow.

Dr.Elizabeth Dowdell, a professor at Villanova University in Pennsylvania, says that it’s common for teens to be interrupted by texts while sleeping. “If they often lose sleep,” Dr.Dowdell says, “teens may become angry, or depressed. A lack of sleep can lead to weight gain and even obesity because many people turn to junk food for quick energy when they are tired.”

Some experts are worried about how texting is affecting teenagers’ lives. One concern is that students might not learn correct grammar and spelling if most of the writing they do is made up of text messages. Some people also worry that teens don’t spend enough time talking with others face-to-face, which could be hurting their relationships with friends and family. Moreover, all that texting takes away hours that could be spent studying, exercising, taking up a hobby, or just relaxing.

According to Dr. Dowdell, teens need to learn that they can and should turn off their phones sometimes. She had Kenny and Frances do an experiment. These were the rules: No phone for 48 hours. No computer or Internet either, unless it was for schoolwork.

After 48 phone-free hours, Kenny and Frances were interviewed. “Wow, it was pure torture(折磨),” Kenny joked. Kenny missed his friends, and he was sad at times. But he also felt relief from the constant texting. He spent time reading books and talking with his family, which he really enjoyed. Frances had an even happier result. “I loved it!” she said, “I was going to the gym and hanging out with friends and playing basketball. I had a wonderful experience.” Frances decided to continue the experiment for a while. “I think I’ll be so much smarter and healthier,” she explained, “everybody in the world should try it.”

1.If teens keep waking up to text while sleeping, they may _____.

A. get overweight B. become happier

C. disturb their parents D. feel more relaxed

2.What is Paragraph 4 mainly about?

A. Mistakes in teens’ text writing.

B. Time wasted on meaningless texting.

C. Worries about how texting affects teens.

D. Encouragement to teens’ talking face-to-face.

3.The writer mentions the experiment on Frances and Kenny to _____.

A. advise people what to do without phones

B. show teens can live well without phones

C. explain phones are important in teens’ lives

D. introduce how they make good use of phones

1.A 2.C 3.B 【解析】【主旨大意】本文是一篇议论文，文中主要谈到了手机对青少年的不良影响，并通过一个实验表明，离开手机，青少年也能过得很好。 1.细节理解题。题干意为：在他们睡觉时，如果青少年坚持醒来发短信，他们可能。根据第三段最后一句中“A lack of sleep can lead to weight gain and even obesity”可知，这会导...

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How do you go to school? Some students may answer, “By car”. Maybe some others will look at them through green glasses (羡慕地).

You needn’t feel____if you have no cars. It’s true that cars are____Many people find it hard to think about____life will be like if they have no cars. But now more people know that too many cars bring great____They make streets too____.

People are trying to stop pollution (污染) from cars. One way is to make____cars. But it____much to make these cars. And more people think about better ways. We can____our lifestyle. A lot of Americans go to work____their bikes now. Riding bikes is clean and healthy. It helps people get strong. Let’s try together! I hope we can live in a green world____pollution some day.

1.A. bad B. good C. well D. better

2.A. interesting B. important C. difficult D. dangerous

3.A. how B. what C. why D. where

4.A. lessons B. fun C. skills D. problems

5.A. small B. clean C. busy D. modern

6.A. green B. red C. yellow D. white

7.A. takes B. spends C. pays D. costs

8.A. have B. change C. enjoy D. make

9.A. on B. by C. with D. ride

10.A. with B. in C. has D. without

1.A 2.B 3.B 4.D 5.C 6.A 7.D 8.B 9.A 10.D 【解析】试题分析：本文叙述了由于现在人们的车辆多了，给社会带来了一些污染的问题，需要引起全世界人的重视，如果生产环保的车造价太高，我们可以通过改变我们的生活方式来改变这一切。 1. 34 . They make streets too 35__ .可知...

The film star is busy all day and has little time__________her little son.

A. to B. of C. for D. in

C 【解析】试题分析：to到，向；of关于，……的；for为了，对于；in在……里面。句意：这个电影明星整天都很忙，很少有时间给他的小儿子。结合语境可知下文for引导目的状语，故选C。

He ___________play the guitar but he can play chess.

A. don’t B. doesn’t C. can D. can’t

D 【解析】句意：他不会弹吉他，但他会下国际象棋。因为有but但是，所以前后句子是转折关系，后边的句子是他会下国际象棋，前边应该是他不会弹吉他，所以只有can’t符合题意；故答案选D。

The Rise of Artificial Intelligence（AI:人工智能）discusses AI technology and how it might affect humans in the future, but the future is already here. In 2011, America’s Favorite Quiz Show held a competition between two men and an IBM computer named “Watson”. IBM describes Watson as “a technology that understands all forms of data and also reasons and learns.” Both men thought they could beat Watson. Instead, the computer and its Artificial Intelligence soundly beat both of the human beings.

ARTIFICIAL INTELLIGENCE MADE SIMPLE

Artificial Intelligence generally refers to machines with human-like intelligence, such as problem-solving and learning. In order to be considered AI, the computer must pass the Turing test, named after Turing, a British mathematician who worked with the first computer.

In the 1950s, Turing published a paper questioning whether a computer could be used to trick humans into believing they were interacting（互动） with an actual human being. He found that if 30% of humans who interacted with a “machine”believed they were actually interacting with a human being, then the computer could be considered as AI.

A simple example of AI is Apple’s Siri. Ask Siri to do anything, from calling a friend to booking a dinner table, and Siri can do them. Siri seems almost to be a human being. When you ask, “Are you a real person?” Siri answers, “That is a really personal question.”

But just because a system can behave like a human being, that does not mean it can think like humans, Or, does it?

JOINING OF HUMAN & MACHINE

It seems that our devices（设备）will turn into humans. Our phones already tell us to take an umbrella before we walk out the door. They volunteer traffic conditions so we know how long it will take to drive to work.

Our devices can interact with us in a way that looks like a real conversation with another human being, like with Siri. It does not seem crazy at all to think that AI may be programmed to actually think. If it has not already happened, it will likely happen in the near future.

Have we come to the time when computers and AI have caught up to human beings? Although computers have the ability to make our life better, is it possible that they may control and destroy human beings in the end?

WHAT THE FUTURE HOLDS

It seems pretty clear that in the future, we’re going to see a human-machine hybrid. Humans will be stronger, live longer and be smarter. Ray Kurzweil, a computer scientist, believes that within 50 years, the humans on Earth will be about 50 to 80% robotic. There is no question that AI will be a part of every technology that humans create. Will it turn out be more of a benefit to humankind or will it be a risk and threaten（威胁到） humanity as we know it? If AI is programmed according to Isaac Asimov’s 3 Laws of Robotics, humans won’t have a problem with machines; but for some, evil AI still stands in the way of a peaceful and safe life on Earth.

1.The story of computer Watson is mentioned here to tell us that ______.

A. the age of machines has come

B. humans make their own enemies

C. AI has actually come into our life

D. humans are playing a dangerous game

2.From the passage, we can learn that _____.

A. Turing test was designed to examine the first computer

B. machines interacting with humans can be called AI

C. Siri can volunteer to book a dinner table

D. AI will help humans to be stronger and smarter

3.What does the underlined expression “a human-machine hybrid” in the last paragraph probably mean?

A. A machine with a human look.

B. A human created by machines.

C. A body part robotic part human.

D. A robot that can behave like humans.

4.The passage is mainly about _____.

A. the history and future of AI

B. the advantages and disadvantages of AI

C. the examples of AI

D. the competition between humans and AI

1.C 2.D 3.C 4.A 【解析】【主旨大意】本文是一篇说明文。主要讲述了人工智能的历史和未来发展情况。 1.推理判断题。题干意为：这里提到电脑Watson的故事是为了告诉我们。根据第一段第一句可推知，提到电脑Watson的故事是为了告诉我们人工智能事实上已经进入我们的生活。故选C。 2.细节理解题。题干意为：从本文我们能够了解到。根据WHAT THE F...

Charles Dickens was an English writer. He was born in 1812. He created some of the world’s best-known characters and many readers think he is the most important writer of the Victorian era (1837-1901). Some of his famous novels are Oliver Twist, David Copperfield and Great Expectations. Most people in his novels lived in London.

In 1824, Dickens’ father went to prison(监狱) because he couldn’t pay money to someone. In those days, a man’s wife and young children went to prison with him. Charles was 12, so he left school to work in the prison. Life was hard, and a lot of children worked in those days. Dickens’ own experience helped him to write about poor children without a mother or father. Dickens' success began with the publication (出版) of The Pickwick Papers in 1836. And his book Oliver Twist is about a boy without father. Important people were more interested in the problems of poor people after reading Dickens’ books.

Dickens’ novels are often very long and he wrote them in different parts for a newspaper each week. His novels have a lot of exciting and sad things in them. He wanted his readers to buy the newspaper every week. And the readers wanted to finish the story! Dickens’ novels are popular because many of his stories are about social(社会的) problems and family life. Dickens was successful in writing and he has been praised by other writers for his style and characters.

1.When was Charles Dickens born?

A. In 1812. B. In 1824. C. In 1836. D. In 1901.

2.Where did Dickens work when he was 12?

A. In the prison. B. At a school. C. On a farm. D. In an office.

3.Dickens’ novels are popular because_______.

A. they have a lot of exciting and sad things

B. they are about social problems and family life

C. he has been praised for his style and characters

D. he is the most important writer of the Victorian era

1.A 2.A 3.B 【解析】短文是对英国作家查尔斯·狄更斯的生平简介。他出生于1812年，创造了一些世界上最著名的人物，很多读者认为他是维多利亚时代最重要的作家（1837-1901）。他的一些著名小说有《奥利弗之恋》、《大卫·科波菲尔》和《远大前程》。他小说中的大多数人都生活在伦敦。狄更斯的小说很受欢迎，因为他的许多故事都是关于社会问题和家庭生活的。狄更斯的写作很成功，他的风...

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--He is in__________________.