文档内容
选择性必修第二册 Unit 5 A delicate world
Ⅰ.阅读理解
A
Throughout all the events in my life，one in particular sticks out more than the others.As I
reflect on this significant event，a smile spreads across my face.As I think of Shanda，I feel loved
and grateful.
It was my twelfth year of dancing，I thought it would end up like any other year：stuck in
emptiness，forgotten and without the belief of any teacher or friend that I really had the potential
to achieve greatness.
However，I met Shanda，a young，talented choreographer(编舞者)．She influenced me to
work to the best of my ability，pushed me to keep going when I wanted to give up，encouraged
me and showed me the real importance of dancing.Throughout our hard work，not only did my
ability to dance grow，but my friendship with Shanda grew as well.
With the end of the year came our show time.As I walked to a backstage filled with other
dancers，I hoped for a good performance that would prove my improvement.I waited anxiously for
my turn.Finally，after what seemed like days，the loudspeaker announced my name.Butterflies
filled my stomach as I took trembling steps onto the big lighted stage.But，with the determination
to succeed and eagerness to live up to Shanda’s expectations for me，I began to dance.All my
troubles and nerves went away as I danced my whole heart out.
As I walked up to the judge to receive my first-place shining，gold trophy(奖杯)，I realized
that dance is not about becoming the best.It is about loving dance for dance itself，a getaway from
all my problems in the world.Shanda showed me that you could let everything go and just dance
what you feel at that moment.After all the doubts that people had in me，I believed in myself and
did not care what others thought.Thanks to Shanda，dance became more than a love of mine，but
a passion.
1．What did the author think her dancing would be for the twelfth year?
A．A change for the better. B．A disappointment as before.
C．A proof of her potential. D．A pride of her teachers and friends.
2．How did Shanda help the author?
A．By offering her financial help.
B．By entering her in a competition.
C．By coaching her for longer hours.
D．By awakening her passion for dancing.
3．How did the author feel when she stepped on the stage?A．Proud. B．Nervous. C．Scared. D．Relieved.
4．What can we learn from the author’s story?
A．Success lies in patience. B．Fame is a great thirst of the young.
C．A good teacher matters. D．A youth is to be treated with respect.
B(★)
A new study found some primates(灵长类) are leaving their tree homes and spending more
time on the ground.Led by Timothy Eppley ，PhD，scientists studied nearly 50 species of
monkeys and lemurs(狐猴) to look at the reason behind these changes.
About 15 years ago，Eppley worked with southern bamboo lemurs，which were known to
spend most of their days in the trees，feeding on bamboo leaves.However，he was surprised to
find these lemurs were spending most time on the ground and had an incredibly diverse diet.He
wondered whether habitat reduction and limited food resource availability were driving them to
move to the ground.This inspired him to begin this study.
He reached out to every researcher he could find who may have significant data on primates
from Madagascar or the Americas，the two places with almost all tree-dwelling primates.
Eppley examined more than 150,000 hours of data observed on 32 monkey species and 15
lemur species at 68 sites.He found that they spent an average of only 2.5% of their time on the
ground each month.But the findings showed some interesting differences.
“As habitats are degraded and the climate worsens，primates that are flexible enough to
adapt because of their diverse diets or live in larger groups may be more likely to shift to life on the
ground，” Eppley says.“However，other species that rely on fruit diets or live in small groups
are less adaptable and are less willing to leave the trees.For these species，we will still need to
enforce fast and effective conservation strategies to ensure their survival.”
Although moving to the ground has some advantages in certain situations，primates can face
problems when they leave the trees.They can become victims of other animals and
diseases.Besides，they will be faced with finding appropriate food resources on the ground，thus
having a broad or flexible diet is important.Primates are important seed spreaders within their forest
habitats.The loss of primates would lead to negative effects on the ecosystem.
5．Why did Timothy Eppley begin his study?
A．To try to make primates more adaptive.
B．To study how monkeys differ from lemurs.
C．To figure out the reason for the loss of bamboo.
D．To find out why primates are turning to the ground.
6．How did Timothy Eppley carry out his research?
A．By doing experiments. B．By observing in the wild.
C．By studying collected data. D．By interviewing the locals.
7．Which kind of primates are more likely to come down from trees?A．Those eating diverse diets. B．Those with a large size.
C．Those feeding mainly on fruits. D．Those living in small groups.
8．What will become a concern according to the study?
A．Animals will become less adaptive.
B．The forest ecosystem will become worse.
C．More natural habitats will be lost.
D．More animal-related diseases will appear.
C(★)
Warmer oceans can cause coral(珊瑚) bleaching.Bleaching happens when the coral，colonies
of tiny animals called polyps，lose colored algae(藻类) living in their bodies and turn completely
white.Without the algae，the coral loses its main food source and can die.
In 2021，the United Nations reported a 14 percent loss of corals across the world largely from
rising sea temperatures in the previous 13 years.Australia declared mass bleaching events in 2022
across large parts of the Great Barrier Reef，the fourth since 2016.
Reefs in Hawaii，Florida，and the Caribbean were all severely affected，but thankfully
some coral areas were not.Scientists looked into the characteristics of these corals and their
ecosystems to see how others could be protected.Warm water reefs in the tropics are the worst
affected by bleaching，but they also contain corals with better heat resistance.
Research is focused on finding genes for heat tolerance so that they can be passed on to future
generations.Biologists mix corals that are more resilient to higher temperatures with those that are
not and the resulting hybrid generation has a better chance of survival.
Researchers in Florida’s reefs have been using ocean nurseries to replant coral with batches
that contain genes resistant to heat，acidification，and disease.Those areas have recovered within
a year.
Other projects like Revive and Restore are using methods like preserving older coral
populations’ sperm and eggs (biobanking) and using corals with better adaptability characteristics
in breeding.The project also believes that boosting biodiversity by restoring(恢复) seabirds to
islands，and ridding them of invasive species like rats，helps coral reefs thrive.
Ultimately，scientists say that without a serious reduction in greenhouse gas emissions,99
percent of the world’s coral reefs will be gone by the end of the century.There is a limit to how
quickly coral can adapt，especially given the rate of climate change.Computer simulations have
shown that mild or moderate warming allows coral to adapt，but if temperatures rise rapidly then
extinction is certain.
9．What mainly causes coral bleaching?
A．Loss of algae. B．Lack of food. C．Warm oceans. D．Ocean pollution.
10．What is paragraph 3 mainly about?
A．Coral reefs in tropics are easier to bleach.B．Some corals are found better to resist heat.
C．Coral reefs in some areas are badly affected.
D．Ecosystems in some coral areas are destroyed.
11．What measure helps coral reefs survive?
A．Breeding hybrid generation with heat resistance.
B．Replanting batches of corals containing diseases.
C．Restoring seabirds of islands and invasive animals.
D．Setting no limitation of greenhouse gas emissions.
12．Which section may the text come from?
A．Botany. B．Culture. C．Nature. D．Education.
Ⅱ.七选五
Bruce is a manager who had a team of around 40 people.Most of them were bright ，
enthusiastic，and hardworking young fellows.This helps to promote their independence. 1 But
as a team，they are not so good，which is crucial for the organization.
2 He invited everyone to a hall for a game consisting of 3 rounds.For the first round，he
told everyone to blow a balloon kept on the table and then write their name on it without bursting
it，and each of them did it.Then they took a break outside for the second round.Soon after he
called them back in，with more balloons scattered around without names on them.He declared that
they had 15 minutes to find the balloon with their name written on it. 3
For the next round，Bruce told them if any team member found a balloon with a name on it，
he or she had to give it to the owner of the name.All started searching，and within a couple of
minutes everyone had their own balloon with their name on it.Bruce went to the dais and
said，“You see，in the second round，no one was able to find their balloons as they were
working on individual targets.But in the final round，within a couple of minutes，everyone had
the balloon with them. 4 ”
Most of the time，people hide information，avoid collaboration，and distance themselves
from their team members. 5 And it also，in the long run，affects the individual.So，
everyone in the team should share and work effectively for greater ambition for the team.
A．Consequently，no one got their balloons.
B．However，he found he was not successful.
C．That’s the power of teamwork and sharing.
D．So he considered taking his group on a trip.
E．Individually，everyone on the team is outstanding.
F．This sort of mindset forms obstacles for team growth.
G．He decided to address the issue by launching a team activity.
