1. What has created widespread debate?
A.What color masks to choose. |
B.Whether to wear a face mask. |
C.When the disease will be over. |
A.Face masks cost too much. |
B.There’s medicine to handle the disease. |
C.Diseases kill people every year. |
A.It’s a necessity in life. | B.It’s not the normal life. | C.It’s cheap and effective. |
A.Pick a suitable face mask. | B.Bring some masks for others. | C.listen to the local news events. |
1. When did the man start using the websites?
A.In college. | B.In high school. | C.In primary school. |
A.Tencent.com. | B.Youtube.com. | C.UsingEnglish.com. |
A.Asking for advice. | B.Doing a survey. | C.Searching a website. |
1. What did the speaker do before the year 2012?
A.A fitness coach. | B.A chess player. | C.A marathon runner. |
A.He was motivated by Bolt. | B.He broke a world record. | C.He won fifth place. |
A.Getting over an injury. | B.Doing strength training. | C.Representing Botswana. |
A.His plan to go for the gold. | B.His experience on the track. | C.His love for his home country. |
4 . Every year, millions of monarch butterflies migrate 3,000 miles to Mexico from North America. “Everybody knows about the monarchs’ migration,” says Andy Davis, an animal ecologist at the University of Georgia. “But one of the things that we still don’t understand is how they’re capable of making such tremendous flight while being such small animals with limited energy.” Amazingly, some of the monarch’s continent-spanning magic may be owed to the size of its wing spot, according to a study published in PLOS One.
The question of how color influences the monarch’s flight began when Mostafa Hassanalian, a professor of mechanical engineering, published a paper about how the colors on the wings of the albatross (信天翁) might help it fly for longer distances. The black on the top of the bird’s wings absorbs more solar energy, creating a pocket of warm air; the white on the bottom absorbs less. Together, the opposite colors create more lift and less drag, helping the albatross to fly up more efficiently.
Motivated by Hassanalian’s paper, Andy Davis contacted him and they teamed up with three other experts to investigate whether the orange, black. and white patterns on North American monarch butterflies’ wings influenced their flight distance. Specifically, they explored whether these color patterns determined how far the butterflies could fly. They discovered that surviving migratory monarchs had 3% less black pigment (色素) and 3% more white pigment a surprising contrast from the albatross. They also observed larger white spots on Eastern monarchs, which migrate farther than Western and Floridian populations, along with deeper shades of orange. The team assumed that these color patterns might offer an aerodynamic (空气动力) advantage, although the reason for the larger white spots remains unknown.
Should the connection between white markings and flight performance prove true, they plan to apply it to drone technology. “If small coloration (自然色彩) effects can improve like 10% of your efficiency, that’s a lot,” Hassanalian says, “Another aspect is that your drone would be able to carry more, because this coloration helps it gain extra lift.” The enhancement could also benefit other aircraft, but he points out one warning: planes fly at a much faster speed than butterflies, so coloration may not be as relevant to them.
Other butterfly scientists have reacted to their work with both enthusiasm and skeptlesm. “It is a totally new idea and it’s quite exciting,” says Marcus Kronforst, an evolutionary biologist. “I’ve worked on butterfly color patterns my whole life, basically, and never, never considered this. It’s never crossed my mind that it might influence how the butterflies fly.”
1. According to Andy Davis, what remains a mystery of the monarchs’ migration?A.How the monarchs manage the migration. |
B.Why the monarchs make the migration. |
C.Why the monarchs migrate to Mexico |
D.How the monarchs choose the route. |
A.To reveal the mechanism of the albatross’ flight. |
B.To show Hassanalian’s achievements in albatross study. |
C.To indicate where the researchers drew their inspiration. |
D.To introduce common color patterns of the albatross’ wings. |
A.They reduce orange pigment. | B.They limit migration distance. |
C.They resemble albatross spots. | D.They offer extra lift for migration. |
A.By conducting an experiment. | B.By making comparisons. |
C.By doing field research. | D.By studying models. |
A.Scientifically curious. | B.Cautiously optimistic. |
C.Technologically skeptical. | D.Environmentally concerned. |
5 . Bill Johnson was walking along the banks of the Niagara River, trying to find a good place to take a photo. Finally, he found the
Tired and gasping for breath, he paddled his hands, trying to stay afloat. Finally, he found himself being
A.poor | B.perfect | C.unique | D.wet |
A.beyond | B.into | C.from | D.over |
A.blew | B.landed | C.flew | D.stressed |
A.site | B.distance | C.reach | D.measure |
A.stretched | B.jumped | C.ran | D.went |
A.strong | B.weak | C.light | D.heavy |
A.Automatically | B.Casually | C.Properly | D.Desperately |
A.put out | B.swept away | C.driven away | D.pulled over |
A.drawing | B.dropping | C.leaving | D.climbing |
A.fell | B.lasted | C.got | D.stood |
A.pouring | B.crying | C.moving | D.turning |
A.part | B.machine | C.way | D.hand |
A.puzzled | B.embarrassed | C.realised | D.sacrificed |
A.risked | B.struggled | C.relieved | D.frustrated |
A.waste | B.hold | C.lose | D.shorten |
A.bringing up | B.shooting up | C.cutting up | D.breaking up |
A.lifted | B.followed | C.pushed | D.ranked |
A.washed | B.wound | C.trapped | D.wrapped |
A.humble | B.reliable | C.capable | D.panicked |
A.column | B.advertisement | C.headline | D.journalist |
6 . As the other four players enjoy the crucial victory in an Arena Of Valor competition, they remained unaware that their teammate Lu Dong is a Paralympic
At 32, Lu Dong has
Lu
Losing her
Changing from a (n)
“It was swimming that
A.swimming | B.running | C.dancing | D.singing |
A.accounted | B.accommodated | C.accomplished | D.accumulated |
A.looking | B.diving | C.leaping | D.bumping |
A.developed | B.created | C.made | D.built |
A.Eventually | B.Formally | C.Initially | D.Firstly |
A.confident | B.comfortable | C.uneasy | D.annoyed |
A.approved | B.witnessed | C.learned | D.practiced |
A.responsibility | B.belonging | C.identity | D.achievement |
A.dedicated | B.lasted | C.waited | D.offered |
A.found | B.kept | C.required | D.showcased |
A.hands | B.arms | C.legs | D.feet |
A.wounds | B.damage | C.injuries | D.loss |
A.vulnerable | B.capable | C.strong | D.tired |
A.degree | B.living | C.position | D.point |
A.unique | B.ordinary | C.typical | D.exceptional |
A.changing | B.marking | C.following | D.proving |
A.uncommunicative | B.unambitious | C.selfish | D.impatient |
A.managed | B.attempted | C.expected | D.hesitated |
A.found out | B.brought back | C.waken up | D.taken away |
A.understand | B.accept | C.challenge | D.shape |
7 . Rehan Staton was close to giving up on his dreams. His father, who was his family’s mere provider, struggled to make
His education suffered because of all the
The young boy was
At the company, he finally found people that saw his great
The 24-year-old’s success story now
A.harvest | B.ends | C.share | D.drops |
A.preparing | B.purchasing | C.begging | D.missing |
A.progress | B.changes | C.struggles | D.reforms |
A.worsened | B.developed | C.advanced | D.escaped |
A.taught | B.scheduled | C.encouraged | D.permitted |
A.enthusiastic | B.curious | C.concerned | D.particular |
A.serve | B.tutor | C.measure | D.record |
A.turn down | B.hold back | C.pay off | D.line up |
A.destroyed | B.refreshed | C.followed | D.postponed |
A.distinguished | B.celebrated | C.rejected | D.selected |
A.scholarship | B.job | C.deal | D.rise |
A.ceiling | B.curtain | C.roof | D.balcony |
A.turned out | B.kept away | C.showed off | D.broke out |
A.relief | B.fortune | C.privilege | D.potential. |
A.introduction | B.education | C.organization | D.invention |
A.Consequently | B.Obviously | C.Eventually | D.Hopefully |
A.promises | B.predicts | C.trains | D.inspires |
A.guiding | B.interviewing | C.targeting | D.understanding |
A.load | B.bid | C.range | D.kick |
A.on account of | B.instead of | C.in case of | D.regardless of |
1. 活动目的;
2. 介绍你参赛的生活技能(烹饪或手工等);
3. 个人感受。
注意:1. 写作词数应为80左右;
2. 可以适当增加细节,以使行文连贯。
Life Skills Show
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________9 . It was the day of the big cross-country run. Students from seven different primary schools in and around the small town were warming up. I looked around and
What was wrong? He had worked so hard for this event! I quickly searched for the school’s
David had a brain
I came up to David and
A.gradually | B.temporarily | C.finally | D.quietly |
A.friends | B.partners | C.schoolmates | D.children |
A.walk | B.run | C.go | D.leave |
A.adviser | B.headmaster | C.doctor | D.coach |
A.care for | B.laugh at | C.worry about | D.take in |
A.wanted | B.agreed | C.decided | D.informed |
A.injury | B.disease | C.activity | D.image |
A.best | B.least | C.most | D.worst |
A.unnecessary | B.unusual | C.possible | D.natural |
A.hours | B.days | C.shorter | D.longer |
A.danger | B.threat | C.challenges | D.risks |
A.body | B.power | C.support | D.determination |
A.awarded | B.rewarded | C.encouraged | D.touched |
A.participate in | B.break off | C.take charge of | D.sign up for |
A.paused | B.stopped | C.delayed | D.started |
A.lay | B.sat | C.fell | D.dropped |
A.sank | B.beat | C.hurt | D.died |
A.board | B.call | C.sport | D.match |
A.finished | B.smiled | C.left | D.abandoned |
A.monitored | B.searched | C.crossed | D.observed |
10 . Kelsie’s grandmother always encouraged her to step out of her comfort zone and try new things. The two of them were especially
One
“I once tried to sing in church,” she said. “The music started playing and I just
Luckily, Kelsie didn’t
Taking this leap was no small courage for this
Kelsie chose to sing “Piece by Piece” by Kelly. All three judges were
At first, Kelsie’s
We can’t wait to see where Kelsie’s singing career takes her!
1.A.friendly | B.similar | C.close | D.helpful |
A.ability | B.way | C.choice | D.attempt |
A.encouraging | B.forbidding | C.aiding | D.forcing |
A.admitted | B.appreciated | C.hoped | D.demanded |
A.clapped | B.approved | C.survived | D.froze |
A.give up | B.turn around | C.settle down | D.get through |
A.promise | B.task | C.gift | D.suggestion |
A.singing | B.skating | C.painting | D.dancing |
A.shy | B.ambitious | C.creative | D.straightforward |
A.pains | B.firsts | C.problems | D.interviews |
A.respond | B.experience | C.perform | D.exercise |
A.engineers | B.champions | C.employers | D.judges |
A.influenced | B.promoted | C.impressed | D.represented |
A.curiosity | B.nervousness | C.desperation | D.annoyance |
A.recorded | B.adapted | C.prepared | D.composed |
A.talent | B.determination | C.desire | D.confidence |
A.magical | B.significant | C.amusing | D.mysterious |
A.hometown | B.shell | C.apartment | D.plane |
A.motivated | B.pushed | C.embarrassed | D.attracted |
A.peacefully | B.definitely | C.fortunately | D.comfortably |