How does a police department build a small army of detective dogs as smart as Sherlock Holmes?It’s easy, just___________________clone the best dog of these dogs. Scientists in China are already on the ___________________.__________________ the report, genetic researchers in Beijing have successfully used the DNA from a“Sherlock Holmes of police dogs”—HuaHuangma to create a clone puppy.The idea is that by __________________ the babies have the same strong genes as the mother,these pups(小狗) will also be top performers. It is _________________ that, HuaHuangma is a very good girl.

The 7-year-old Kunming wolf dog has helped __________________ many murder cases for the Yunnan Province police.Her contributions to___________________ to the peace have made her “first-class dog”.HuaHuangma’s minime—Kunxun was born in a lab in December, following _________________done by researchers from a university. Tests show that Kunxun and HuaHuangm are a“99.9 percent”DNA match, and the clone-pup has already_________________other wolf dogs on several tests.Kunxun will now begin training in drug detection,and is ______________ to be a grown—up police dog at 10months.

If Kunxun has as bright of a future as hoped,it’ll ___________________ a huge police-dog training time,which usually takes about 5 years.The final goal,is to mass—produce high—performing police dogs that can be__________________ in a couple of months instead of years._________________ the plan proves possible or not in the long term,Kunxun is not the first clone police dog.In South Korea, six _________________ police dogs began patrolling(巡逻) the streets in 2008.In 2009,the same company produced five clone puppies from a police dog.The police dog discovered the last__________________ of the Sept.11 attacks in New York.The pups were reportedly trained as search-and-rescue dogs themselves.

1.A.easily B.simply C.suddenly D.usually

2.A.case B.problem C.way D.work

3.A.Because of B.As a result C.Thanks to D.According to

4.A.improving B.giving C.ensuring D.inventing

5.A.reported B.told C.written D.known

6.A.work in B.work on C.work with D.work out

7.A.breaking B.achieving C.keeping D.making

8.A.experiments B.experiences C.stresses D.classes

9.A.won B.passed C.followed D.beaten

10.A.considered B.failed C.expected D.reported

11.A.increase B.reduce C.waste D.require

12.A.grown B.shown C.trained D.missed

13.A.When B.That C.If D.Whether

14.A.produced B.cloned C.same D.trained

15.A.person B.suspect C.event D.survivor

To: Carla@yahoo. com

From: Eric@163. com

Subject: Help!

Date: 15/04/2019: 05 AM

Dear Aunt Carla,

I'm having a problem with my classmate, Joan, at school. The other day I wrote an email to another classmate, Beth, in which I said something about Joan that perhaps wasn't very nice. Unluckily, when Beth was writing back to me, she sent it to HYPERLINK "mail to: Joan@163. com, " Joan@163. com, which is Joan's email address!Now Joan is really angry with me and won't talk to me, and Beth is unhappy as well. She has said sorry to me a hundred times already, but the harm is done. I feel bad, because I would never have said those things to Joan's face, but how do I get her to forgive(谅解)me? What should I do?

To: Eric@163. com

From: Carla@yahoo. com

Subject: Some advice

Date: 16/04/2019: 30 AM

Dear Eric,

This problem is more common than you might think!Email is very useful, but also very dangerous, as you don't know where your message might end up!First of all, you should say sorry right away to Joan. Explain that it was a mistake, and that you didn't mean to hurt her feelings. It may take time for her to be able to forgive you, but that's up to her. Then you might want to do something nice for her. Perhaps send her some flowers to show that you're truly sorry. Also, you should remember that old saying: "If you don't have anything nice to say, don't say anything at all. "And good luck!

Carla

1.How soon did Eric get the reply from Aunt Carla?

A.In one day. B.In two days. C.In a week. D.In a month.

2.Why did Eric write the email to Carla?

A.To say sorry. B.To ask for advice.

C.To give advice. D.To say something unfriendly.

3.Carla gave ________pieces of advice to Eric.

A.five B.four C.three D.two

Painting and writing on walls is nothing new. In prehistoric(史前的)times, people in Africa and Europe painted pictures of animals and people in caves. Graffiti has been found at ancient sites in Greece, Italy, Syria and Iraq. In the Roman town of Pompeii in Italy, archaeologists found a lot of graffiti written in Latin, including political and romantic messages, and even some magic spells!

In the 1970s, young people in New York used pens to write their names, or "tags", on walls around the city. One of the first "taggers" was Demetrius, a teenager from a Greek family. He wrote his tag on walls in his neighbourhood and in subway stations on the way to school. Other teenagers saw Demetrius's tag and started writing..their own tags on walls, buses and subway trains all over New York. Then, some teenagers stopped using pens and started using paints. Their tags were bigger and more colourful and appeared on trains, buses and walls around the world. In the 1990s and 2000s, a lot of graffiti artists started to make pictured too.

In many countries, it is a crime to paint on walls and street artists can have problems with the police. In other countries, street art is permitted in certain places. Nowadays, street art is more popular with the public. In some cities, there are street art festivals. In Bristol in the UK, there is a street art festival in August every year. Artists paint all the buildings in a street. Lots of people come to watch the artists and take photos. Street art can be seen in galleries(美术馆)too. There have been exhibitions of street art in galleries in Paris, London and Los Angeles.

Most street artists are young people who paint in their neighbourhood or home city. Many of them use the Internet to communicate and share photos of their pictures with other street artists around the world. Although we don't know what will happen to street art in the future, we can be sure that it is here to stay!

1.Graffiti in ancient times includes different kinds of themes EXCEPT________ .

A.names and tags B.magic spells C.animals and people D.romantic messages

2.Which is the correct order according to the passage?

①Demetrius wrote his tags on walls.

②Many graffiti artists made pictures too.

③Other teenagers wrote their own tags on walls.

④There have been exhibitions of street art in galleries.

⑤More colourful tags appeared on trains, buses and walls.

A.①③⑤②④ B.①③⑤④②

C.④③①②⑤ D.④①③②⑤

3.What does the underlined word "permitted" mean in Paragraph 3?

A.protected B.allowed C.punished D.warned

4.According to the passage, we can learn that________ .

A.Demetrius was the first graffiti artist B.street art can be only seen in the street

C.street artists begin to share their works online D.Bristol holds a street art festival every September

"Why do I live? Why do I wish for anything, or do anything? Is there anything in my life that will not be destroyed by my death?" Like Leo Tolstoy, the famous Russian writer, many people ask these difficult questions. Tolstoy spent his whole life trying to answer these difficult questions.

As a young man, he thought people could achieve perfection if they tried hard enough. So he worked very hard to be the best in everything. He thought that he would find meaning and truth in success.

In 1850s. Tolstoy wrote his first stories. He wrote about his life in the army. He also told stories about his childhood. These works were published and Tolstoy became a well-known writer.

He earned the respect he always wanted. Many rich and smart men met and talked with Tolstoy. Some of them were writers like him. They talked a lot about faith ( 信仰) and the meaning of life. But soon Tolstoy recognized that these men were not perfect. Now he knew they could not answer his questions about faith.

So in the 1860s, Tolstoy tried a different way to find the meaning of life. He opened a school for the children of his serfs-the people who worked on his land. These workers were very poor. He wanted to help them because he thought they were more honest than the rich people he knew.

Tolstoy learned a lot from his workers. He understood how they worked hard to support their

families. He began to believe that marriage and family would give his life meaning. So in 1862, Leo Tolstoy married a young woman named Sonya Behrs.

The next 15 years were the best years of Tolstoy's life. It was during this time that he wrote his most famous books-War and Peace and Anna Karenina. Many experts say that War and Peace is one of the greatest books ever written. In these books, Tolstoy believed humans should live a simple life and take care of their families. Tolstoy thought this would satisfy him and bring him happiness.

Leo Tolstoy is still a very respected writer today. His faith and writings have influenced many

people all over the world.

1.Which is the correct order of the following events?

① Tolstoy served in the army.②Tolstoy got married.

③ Tolstoy wrote War and Peace.④Tolstoy opened a school.

⑤ Tolstoy became a well-known writer.

A. ①⑤③②④ B. ⑤①③②④ C. ①⑤④②③ D. ⑤④①③②

2.Why did Tolstoy want to be the best in everything when he was young?

A. To prepare for his books. B. To achieve perfection.

C. To make a lot of money. D. To show his wisdom.

3.Tolstoy thought he would learn a lot from his workers because they were ____________.

A. poor B. honest C. friendly D. patient

4.According to the passage, which of the following is the most important to Tolstoy?

A. Family. B. Success. C. Wealth. D. Fame ( 名声) .

5.What does the passage mainly talk about?

A. Leo Tolstoy: Living for writing.

B. Leo Tolstoy: Influencing the world.

C. Leo Tolstoy: Being the best in everything.

D. Leo Tolstoy: Searching for the meaning of life.

阅读与回答问题。

When Dr, Karen McComb came to Amboseli Park her first task was to learn the names of the one hundred or so elephants most often seen.

Scientists working in the park have learned to study elephants by watching them up close. They have a list of almost one thousand elephants. There are records for all of the elephants born since 1972. Amboseli was a good place for Dr. McComb to study animal communications. Elephants were a great subject because their lifestyle depends on communication.

Dr. McComb and her team had learned a lot about elephant communication, but they kept on thinking about one puzzling (困惑的) watch. Some families were better at distinguishing (区别) calls of friends from those of strangers.

What made some families smarter than others? The scientists searched their records for an explanation. To their surprise, there was only one factor (因素) of importance: The "smartest" families always had the oldest grandmothers. A family, as it did in all other activities, waited for some signal (信号) from the grandmother when they heard a strange contact call. And older, more experienced grandmothers were better at telling whether other elephants were strangers or friends just by their calls.

That was an important discovery. It showed how an elephant family depends on the experience of the grandmother.

回答下面5个问题,每题答案不超过5个词。

1.How do scientists working in the park study elephants?

2.What did Dr. McComb study?

3.What did Dr. McComb and her team do for an explanation?

4.Who does everyone in elephant families listen to?

5.What does an elephant family depend on in all the activities?

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