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The world's last and loneliest surviving male northern white rhino,Sudan,has died.He was 45 and lived in Kenya.

His1.(die)means there are only two rhinos of this type 2. (leave)alive in the entire world.They are both female-and are Sudan's daughter and granddaughter.

Rhinos are the second 3.(large)land mammal after elephants.There are around 20  thousand southern white rhinos living in the wild.But the northern white rhino4.（endanger)-with just two left now.

5.Sudan has died is a cruel symbol of humans' ignoring nature.Because of hunting,white rhinos were almost wiped out in the 1970s and 1980s.

But 6.so many other wildlife species on Earth,why is the white rhino so important?The answer is down to biodiversity.Scientists say that all species are interconnected.They depend on one another.With less biodiversity,these 7.(connect)weaken and sometimes break,8.(harm)all the species in the ecosystem.

Is there any hope for the species in the future? 9. (Fortunate),efforts are being made to save the white rhino.Scientists now hope they may be able to use10.special technique called IVF to try to help save the species.Before Sudan died,some of his genetic material was taken and carefully stored.Scientists hope that the two females can have their own children one day.

    I was the fourth generation to live on a land of woods and fields that had once been a working farm.Through the___,my family watched a city spread all around us. Gradually, neighboring families sold their houses,which were____with housing developments and____centers.

When I was a student in college,a shopping center was built directly behind us.While it was now ___to do our shopping,we also had to get used to the ___noises at night from delivery trucks.

One morning,having finished my exams for the last term,my mother and I walked on the land while talking about my future plans.Megan,our three-year-old dog,had____into the woods.Before long Megan reappeared,carrying some____in his mouth.My mother had always been proud of teaching her children good___ .It was clear by the look on her face that she had the same___ of the dog.

She looked____at the possibility that the dog could be a criminal.Maybe somebody had  thrown it into the trash and Megan had simply____it up.Mum kept a watchful eye on him to ____that it did not happen again.For a while things seemed____However,one Saturday  afternoon my mother sent me to the store to get some last-minute things.

While at the checkout counter I heard the___ worker say,"Oh here comes that dog  again. I watched,__,as everyone laughed.He __ to the bread shelf,took some bread and walked out.All I could think of to do was to offer to___ for the bread.When I got outside,the dog was___ in sight.I found him at home with the bread and told Mum what I  had just seen.My mother took the bread from the dog and shook her head in___.She could  not believe she had____a shoplifter.

Megan was locked inside the house after that.

1.A.farms B.generations C.woods, D.families

2.A.destroyed B.bought C.designed D.replaced

3.A.conference B.game C.shopping D.culture

4.A.important B.necessary C.convenient D.difficult

5.A.loud B.weak C.amazing D.rare

6.A.barked B.looked C.pointed D.disappeared

7.A.meat B.bread C.chocolate D.waste

8.A.values B.skills C.songs D.knowledge

9.A.disappointment B.sympathy C.disagreement D.expectation

10.A.interested B.frightened C.tired D.pleased

11.A.picked B.given C.turned D.kept

12.A.stick out B.break up C.make sure D.think about

13.A.funny B.simple C.ordinary D.good

14.A.woods B.store C.house D.college

15.A.ashamed B.happy, C.helpless D.careless

16.A.left B.knocked C.headed D.threw

17.A.run B.ask C.stand D.pay

18.A.somewhere B.nowhere C.anywhere D.everywhere

19.A.disbelief B.encouragement C.trouble D.demanding

20.A.lost B.known C.raised D.sent

    There are many kinds of book clubs where members discuss a different book every month. What about dinner clubs,where people get together once a month or four times a year to make and

eat dinner?In the dinner club that I joined,the hostess of the dinner club would prepare a big dinner first,and then the members would begin discussing the food.1.

There are two variations of a dinner club.One has a group of people who try a different restaurant once a month.  2. There they all meet and order and share different entrees(主菜）。This is a great idea,especially if you live in a big city where there are hundreds of different restaurants.

The second kind of dinner clubs has many different forms. 3.She is responsible for cooking the entrees.The other members make different courses at home,like salad and dessert,and bring them to the dinner club.For an even more exciting and interactive type of dinner clubs,the entire group comes together in the hostess kitchen and prepares the entire meal in a group effort.In this way the members of the group not only learn about different types of food,but also different methods of cooking.

4.You can make the dinner club even more special one month by inviting partners.If you are a stay-at-home mother,get a couple of other stay-at-home mothers together and start a children's lunch club. 5. If you have a group of friends that love to get together and experiment with different types of food,the possibilities are endless!

A.They want to have unique food from the hostess.

B.One way is to have the hostess for the month decide on a type of food.

C.Couples can get together for some food and great conversations.

D.People hope to have a great time getting together.

E.This was the beginning of our dinner club.

F.The great thing about a dinner club is its versatility(广泛性）。

G.One member usually decides on the restaurant.

    Dr Robert Hutchings Goddard is regarded as the father of modern rocket propulsion(推进）。As a physicist of great insight,Goddard also had his unique gift for invention.It was in honor of this brilliant scientist that NASA's Goddard Space Flight Center in Greenbelt,Maryland,was set up on May 1,1959.

Goddard first obtained public notice in 1907 in a cloud of smoke from a powder rocket fired in, the basement of the Worcester Polytechnic Institute's physics building.School officials took an immediate interest in the work of the student Goddard. The school's administration,to his surprise,did not expel him.He thus began his lifetime of fine work.

In 1914,Goddard received two U.S.patents.One was for a rocket using liquid fuel.The other was for a two-or three-stage rocket using solid fuel.

By 1926,Goddard had constructed and successfully tested the first rocket using liquid fuel. At that time,Goddard' s rockets left little impression on government officials.Only through modest amount of money from the Smithsonian Institution and the Daniel Guggenheim Foundation was Goddard able to sustain his devoted research and testing.

Goddard' s greatest engineering contributions were made during his work in the 1920s and 1930s.He received a total of $10,000 from the Smithsonian by 1927,and through the personal efforts of Charles A.Lindbergh,he later received financial support from the Daniel and Florence Guggenheim Foundation.

Goddard 's work largely anticipated the later German V-2 missiles in technical detail.His rocket flight in 1929 carried the first scientific payload(有效负荷），a barometer(气压计）and a camera.During World War II,Goddard was appointed by the U.S.Navy to the development of practical jet-assisted takeoff and liquid propellant(推进燃料）rocket motors capable of variable thrust.In both areas,he was successful.Robert H.Goddard died on August 10,1945,four days after the first atomic bomb was dropped on Japan.

1.What was NASA's Goddard Space Flight Center in Greenbelt established for?

A.To attract people's attention.

B.To make Goddard famous.

C.To show respect to Goddard.

D.To introduce Goddard 's invention.

2.According to Paragraph 2,how did the school officials respond to what Goddard did in the physics building in 1907?

A.They wanted to know more about it.

B.They were disappointed at it.

C.They made him drop out of school.

D.They ordered him to stop it.

3.What does the underlined word"sustain"in the fourth paragraph mean?

A.Delay. B.Reduce.

C.Create. D.Continue.

4.When probably was Goddard chosen to work to develop practical jet-assisted takeoff?

A.In 1927. B.In 1929.

C.In 1940. D.In 1946.

    Kids,whose imaginations have no limit,frequently come up with inventive ideas.However,few see them come to life mainly because adults don't believe in their practicality.That is about to change thanks to Little Inventors,an innovative(创新的）project that connects inventors to producers and artists who can help bring even the most impossible invention ideas to life.

The project is the brainchild of Dominic Wilcox,a British artist and inventor,who is world-famous for his fun creations like GPS shoes that can find their way home.Wilcox,who was encouraged to create things at a very young age by his teacher,believes that"we are all born creators"and thinks children's ideas are just as valuable as those of adults'.

The chain of events leading to the founding of Little Inventors dates back to a series of workshops held by Wilcox around his hometown of Sunderland,England in 2015.The 19 events, organized to encourage children aged 5-12 to describe their ideas,were a huge success,attracting over 300 kids and resulting in more than 450 fun inventions.The designs were presented to a group of twenty-three local artists and producers who selected one idea and then worked alongside its young creator to bring it to life.

The success of the workshops has led to the creation of Little Inventors.The website allows inventors from all over the world to submit their invention ideas.Though not all submissions will be built,inventors will receive valuable feedback on their designs and also suggestions on ways to

improve them.So,upload an idea or two to little inventors.org and see if you can make your crazy,or world-changing invention a reality.

1.What is"Little Inventors"?

A.It's a company. B.It's an organization.

C.It's a task. D.It's a school.

2.What is the purpose of the Little Inventors?

A.To help bring children's imaginative ideas to life.

B.To help avoid children's failure.

C.To call on adults to help children invent things.

D.To persuade adults into inventing with children.

3.What can we lean about Wilcox from the text?

A.He took great interest in his teacher's inventions like GPS shoes.

B.He started thinking creatively when he was very young.

C.He was well-known to the world as a British artist.

D.He was encouraged to make inventions by his parents.

4.Which of the following can correctly show the order of the workshops' work?

a. collecting kids' ideas

b.artists and producers helping bringing the ideas to life

c.organizing events

d.encouraging kids to describe their ideas

e.presenting kids' ideas to artists and producers

A.bcdea B.acbed

C.ecdab D.cdaeb