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2071．In the story of "The Crow and the Pitcher" from Aesop's Fables，a thirsty crow drops stones into a narrow jar to raise the low level of water inside so he can take a drink.
Now scientists have evidence to back up that story.Crows actually do understand how to make water displacement（排水量） work to their advantage，experiments show.The results suggest that the birds are，at least in some aspects，as smart as first-graders.
Researchers，led by Sarah Jelbert at the University of Auckland in New Zealand，presented six crows with tubes filled with water.Inside the tubes，a worm or piece of meat on a piece of wood was floating，just out of reach of the crow.In front of the tubes，the researchers arranged several rubber erasers that would sink，and some plastic objects that would float.The crows found out that they could drop the erasers into the tubes in order to raise the water level and get their snack.
However， the birds handled awkwardly in experiments in which they could choose to drop objects in either a wide tube or a narrow one to get a snack，the researchers said.Dropping objects into narrow tube would lift the water level by a greater amount and put the treat within reach after just two drops；while it took around seven drops to raise the snack to the same level in the wide tube.The crows obviously didn't realize this，and most of them went for the wide tube first.
Previous studies showed that chimps and human children can solve similar tasks.In a 2011 study，chimps and kids found out that they could put water into a tube to reach a peanut that was floating in a small amount of water at the bottom.
（1）How did the crows get the snack in Sarah's experiment？
A．By breaking the tube.
B．By dropping in erasers.
C．By standing on the wood.
D．By removing the wood.
（2）What does the author mean by saying "the birds handled awkwardly" in Paragraph 4？
A．They were unable to tell different shapes.
B．They dropped objects only into narrow tubes.
C．They were not aware of the snack at first sight.
D．They mostly avoided the easier way to get the snack.
（3）What does the text mainly focus on？
A．Stories of Aesop's Fables.
B．The development of crows.
C．Crows' intelligence.
D．Human-animal communication.
（4）What can we learn from the passage？
A．Crows are almost as clever as first-graders in some respects.
B．Crows understand water displacement completely.
C．Chimps and children are much smarter than crows.
D．The story of "The Crow and the Pitcher" lacks evidence.發(fā)布：2024/6/27 10:35:59組卷：3引用：1難度：0.52072．take photographs；from near and far；wave one's arms；at first；fly up；be different from；by weight；in the air；all one's life
（1）he was a little shy in class，but now he acts more naturally
（2）I am in a rather special position，as my jobanyone else's.
（3）As we all know，the freight of the luggage is charged.
（4）My parentsfor us when we were small.
（5）Most of the problems were solved at the meeting，but two were left hanging
（6）As soon as she was put into the small bed，she began to shout and.
（7）Birds caninto the sky easily，but humans can't do that.
（8）I love my motherland so much that I devoteto her.
（9）The star is so famous that people cometo see her performances.發(fā)布：2024/6/27 10:35:59組卷：0引用：1難度：0.82073．他是位鼓舞人心的老師，所以我們都喜歡他。
He was，so we all loved him.發(fā)布：2024/6/27 10:35:59組卷：1引用：6難度：0.72074．Although not formally trained as an art historian，he
widely（respect）for his knowledge of the period.發(fā)布：2024/6/27 10:35:59組卷：0引用：1難度：0.82075．Man has killed
there are fewer and fewer kinds of animals left.
人類獵殺了太多的動物，以至于動物的種類越來越少。發(fā)布：2024/6/27 10:35:59組卷：1引用：1難度：0.72076．Black Friday is the day after Thanksgiving Day in the USA，falling on the Friday after the fourth Thursday in November.
（1）.
Many people have a day off work or choose to take a day from their annual leave on Black Friday.Some people use this to make trips to see family members or friends who live in other areas or to go on vacation.Shopping for Christmas presents is popular on Black Friday.Many stores have special offers and lower their prices on some goods，such as toys.
Public life
（2）.Many people take a day off on the day after Thanksgiving Day.Many organisations also close for the Thanksgiving weekend.
Public transit systems may run on their normal schedule or may have changes.Some stores extend their opening hours on Black Friday.（3）.
Background
Black Friday，the day after Thanksgiving Day，is one of the busiest shopping days in the USA.（4）.One theory is that the wheels of vehicles in heavy traffic on the day after Thanksgiving Day left many black marking on the road surface，leading to the term "Black Friday".
The other theory is that the term "Black Friday" comes from an old way of recording business accounts.（5）.Many businesses，particularly small businesses，started making profits before Christmas.Many hoped to start showing a profit，marked in black ink，on the day after Thanksgiving Day.
More recently，Black Friday has been exported to nations outside of North America such as the United Kingdom by major online retailers like Amazon or Apple.In 2011，IBM reported online Black Friday sales were up by 24.3%，according to a study that includes 500 retailers.
A.People's activities
B.History of Black Friday
C.Losses were recorded in red ink and profits in black ink.
D.A busy shopping day is a holiday in some states.
E.There can also be jams on roads to popular shopping destinations.
F.There are two popular theories as to why it is called Black Friday.
G.Black Friday is not a federal holiday but a public one in some states.發(fā)布：2024/6/27 10:35:59組卷：7引用：1難度：0.52077．We turned around and
in the lake，crying for help.
我們轉(zhuǎn)過身，發(fā)現(xiàn)一個女孩在湖中掙扎，大聲呼救。發(fā)布：2024/6/27 10:35:59組卷：0引用：2難度：0.82078．I'm delighted to know you showed a great interest in Chinese table manners.Now I would like to share you how to behave properly when we are invited to dinner.
To begin with，the host will reserve a special seat for the guest，that is highly honored on such a occasion and is expected to be the first to taste the food served.Beside，chopsticks and spoons are usually used when you are eating in China.Third，you are not supposed to make a noise while drink soup.Last but not least，remember to thank the host for the delicious food he has been offered，which will surely make him happily.
I hope my advices will be of help to you.發(fā)布：2024/6/27 10:35:59組卷：8引用：1難度：0.52079．US private rocket company SpaceX has announced that two private citizens have paid to be sent around the Moon.The mission（任務）is planned for late 2018.SpaceX CEO Elon Musk said， "This presents an opportunity for humans to return to deep space for the first time in 45 years."
The two unnamed people will fly aboard a spaceship which is set for its first unmanned test flight later this year.The co-operation of America's NASA space agency had made the plan possible.Mr.Musk said，"The two passengers will travel faster and further into the solar system than any before them." Like the Apollo astronauts before them，these individuals will travel into space carrying the hopes and dreams of all humankind，driven by the universal human spirit of exploration.
"We expect to conduct health and fitness tests，as well as begin initial training later this year.The first mission would be unmanned，and the next one-with crew-was expected in the second quarter of 2018，" the rich businessman and inventor said， "The first passengers are entering this with their eyes open，knowing that there is some risk here.They're certainly not childish，and we'll do everything we can to reduce that risk，but it's not zero."
The space tourists would make a circle around the Moon，scanning the lunar surface and then going well beyond.However，the mission will not involve a lunar landing."If NASA decided to take part in a lunar fly-by mission，then the agency would have privilege，" Mr.Musk said.The US has not sent astronauts to the Moon since the early 1970s.
（1）Which of the following statements is TRUE according to the text？
A．The two tourists can't afford to fly around the moon.
B．Space travels are rooted in the spirit of human exploration.
C．Initial training is expected to be conducted at the beginning of 2018.
D．The two tourists are expected to fly at a slow speed.
（2）The agency has privilege because.
A．it needs co-operation with Mr.Musk
B．it has previous technical skills
C．it will be able to remove all the risks
D．it has to make money for research
（3）Where can you most probably read the text？
A．In a textbook.
B．In a science fiction.
C．In a travel brochure.
D．On a news website.
（4）What can be a suitable title for the text？
A．The coming Moon trip of two private citizens
B．An opportunity to explore space for the first time
C．A paid trip planned by SpaceX to land on the Moon
D．Two unmanned missions of circling around the Moon發(fā)布：2024/6/27 10:35:59組卷：8引用：1難度：0.52080．閱讀不僅豐富我的知識面，而且開闊我們的視野。 （not only...but also...）
Reading can.發(fā)布：2024/6/27 10:35:59組卷：1引用：1難度：0.5
