10．The Big Brother in the novel 1984listens to everything and nothing can escape his ears．Now in rea——青夏教育精英家教网——

10．The Big Brother in the novel 1984listens to everything and nothing can escape his ears．Now in reality，we have Facebook．The social media giant has never denied that it's keeping track of conversations you have near your phone （ if the Facebook app is open，that is ），but not，one expert has told NBC that Mark Zuckerberg's empire may be keeping ears on you at a more regular basis．According to Professor Kelli Burns，who teaches mass communication at the University of South Florida，it may be listening more often than it lets on．
To prove her point，Burns turned on the microphone feature on her phone，and said，"I'm really interested in going on an African journey．I think it'd be wonderful to ride in one of those jeeps．"Less than a minute later，when she checked her Facebook page，she was met by a story about a journey-the first post on her newsfeed．There was also a car ad on her page．
While Facebook says that it's only keeping its ears open to help"identify the music you're listening to and TV matches you're watching，"Burns'little experiment suggests that there may be other motivations at play as well．But the social media company has denied claims that it records any conversations，and told The Independent，"Facebook does not use microphone audio to inform advertising or News Feed stories in any way．Businesses are able to serve related ads based on people's interests and other statistic information，but not through audio collection．"
Whether you believe this statement or not，there are ways to stop Facebook from listening in at all．Simply turn off your phone's microphone by heading over into Settings （ if you're an iPhone user ），going to the Privacy tab，then clicking on Microphone．From there，you can remove Facebook's mic privileges，and probably，stop the company from hearing your conversations．On Android，you can also go to Privacy under the Settings tab，and change Facebook's permissions．
So the next time you're chatting with your friends about your summer vacation plans，keep an eye on your Facebook feed．There may be more participants in your conversation than you realize．
28．Why does the author mention the Big Brother in the first paragraph？C
A．To explain who Big Brother is．
B．To stress the importance of Facebook．
C．To introduce the topic about Facebook．
D．To encourage readers to share their ideas．
29．What does the underlined"it"in paragraph 1refer to？C
A．Big Brother．
B．An empire．
C．Facebook．
D．A university．
30．What might Facebook do if it is turned on？D
A．Chat with you like a real friend．
B．Turn on your phone's microphone．
C．Identify the movie you are watching．
D．Show ads based on your conversation．
31．What is the best title for the text？A
A．Walls Have Ears
B．The Apple of Your Eye
C．Turn off Your Cell Phone
D．Facebook：a Caring Brother．

9．China has two countries to the north，unlike （不同，不像） Canada，which has no countries to its north．

8．One of the best-known American writers of children's books is Alfred Strong，or Doctor Strong，as he is better known to readers everywhere．Now，an art show called Doctor Strong From Then to Now is traveling around the United States．The pictures and drawings show the history of Doctor Strong．
Doctor Strong first became famous almost fifty years ago when his first children's book was published．Since then，he has written forty-five books that have sold more than one hundred million copies around the world．
Doctor Strong's books are known for their easy use of words and colorful，hand-drawn pictures．These drawings bring life to his imaginary creatures：The Cat in the Hat，Horton the Elephant，The Grinch Who Stole Christmas，and hundreds of others．
The San Diego Museum，in California，organized the art show．It included about three hundred Doctor Strong's original drawings and some of his writings．
Most of Doctor Strong's books，although written in a funny way，have serious messages．For example，in Mc Elligot's Pool，he describes the danger of pollution．He discussed the arms race in The Butter Battle Book，written in 1984．
Doctor Strong is almost eight-four years old now．He says he never planned to write stories just for children．He says he writes sorties that interest people of all ages．He says he used easy words so that everyone，even a child，can understand．
21．Doctor Strong first became famous inD．
A．his eighties when an art show was traveling around the United States
B．his fifties when his drawings and writings were published
C.1984when his book Mc Elligot's Pool was published
D．his thirties when his first book was published
22．Doctor Strong's books are very popular in America becauseB．
A．they are stories about animals such as cats，elephants and so on
B．they are written in easy words with colorful pictures
C．he organized the art show in California
D．they are written in a funny way
23．His purpose in writing many such books isD．
A．to show his original pictures and drawings
B．to organize a social art show of his won
C．to make his readers laugh or smile when they read his books
D．not only to interest people but to expose（uncover） some serious social problems．

7．The doctor，whom the nurse is talking to him，is leaving for Africa next month．去掉him．

6．It mustn't have rained just now，for the ground is dry．mustn't 改为 can't．

5．What wonderful the trip was!What改为How．

4．Our new neighbours said they would __________ our house the next week．（　　）

3．Mary is in a hurry because the train to the airport leaves __________ half an hour．（　　）

2．It was on the bus __________ Lisa first met Mr．Smith．（　　）

1．Unlike his brother，he has a good sense ofhumor （幽默）．

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