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1.

Since NASA’s Viking Task tested Martian soil back in the 1970s, we’ve known that Mars ( 火星 ) is covered with a desert—harmful to life as we know it. But since tasks to Mars paid attention to what lies under the desert, a different picture has started to appear.

This discovery of water under the Mars’ South Pole is the result of radar echoes ( 雷达回波 ) that were picked up by an instrument on a spaceship that’s been moving around Mars for 15 years. To stay liquid ( 液体 ) under the long-frozen desert of Mars, the researchers say this lake must have a lot of salts mixed in it.

It is very cold and saltiness would make it a very hard environment for any living thing. But the lead researcher, Professor Roberto Orosei from the Italian National Institute for Astrophysics, said it was not impossible for things to live there.

To search for life in this newly discovered lake, scientists will need to send a robot that’s able to make a hole through the mile of ice covering it. But at least the teams looking for life on Mars will now know where to start their search.

正确的写 “T”, 错误的写 “F”

1 NASA’s Viking Task found water in the 1970s.

2 The researchers believe there must be lots of salts in the underground lake.

3 It’s possible that there are living things in the newly discovered lake.

4 In order to find where water is, scientists must use a robot to make a hole through the mile of ice.

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题型:阅读理解
知识点:自然
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【答案】

1 F

2 T

3 T

4 F

【分析】

文章介绍了人类对火星的探索,主要讲在火星上发现了液态水体。

1

细节理解题。根据 “Since NASA’s Viking Task tested Martian soil back in the 1970s, we’ve known that Mars is covered with a desert—harmful to life as we know it.” 可知 1970 年题干中美国宇航局的海盗任务测试了火星的土壤,而不是发现了水。陈述是错误的,故填 F

2

细节理解题。根据 “To stay liquid under the long-frozen desert of Mars, the researchers say this lake must have a lot of salts mixed in it.” 可知研究人员认为,地下湖泊中一定有大量的盐。题干中陈述是正确的,故填 T

3

细节理解题。根据 “But the lead researcher, Professor Roberto Orosei from the Italian National Institute for Astrophysics, said it was not impossible for things to live there.” 可知在这个新发现的湖里可能有生物。题干中陈述是正确的,故填 T

4

细节理解题。根据 “To search for life in this newly discovered lake, scientists will need to send a robot that’s able to make a hole through the mile of ice covering it.” 可知科学家们必须用机器人在长达一英里的冰层上挖一个洞,是为了在这个新发现的湖里寻找生命。题干中陈述是错误的,故填 F

=
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1.

    The Taojinshan Greenway (绿道) in Shenzhen has been open to citizens since July, 2019.Sitting at the west side of Shenzhen Reservoir, it is as long as 7.07 kilometers.

With plants along both sides and lakes lying at different sites, tourists can enjoy wonderful scenery all the way. If they are tired, they are free to take a rest at the 3 stops that were built for breaks. Additionally, five unused guard posts (岗享) along the old route have remained. They serve as sightseeing platforms for visitors to feel the cultural spirit behind the place.

Of all its 13 scenic spots, 8 were designed to have AI helpers. From them, visitors can gain information on parking, tour guide services and more. The smart greenway, with free Wi-Fi available, also provides environmental date, such as temperature, wind speed and air quality. What's more, it can give visitors warnings of coming extreme ( 极端的) weather and natural disasters, including rainstorms and typhoons that may hit Shenzhen.

"Started in the middle of 2015,the building process of the Taojinshan Greenway has taken good care of the wildlife and environment nearby" said Yang Shiming, an official in charge of the project.

The greenway is an example of construction projects without doing ham to the nature. It also shows the role that technology plays in building a smart greenway for more life convenience."

42How long did it take to finish the Taojinshan Greenway?

AAbout 3 years         BAbout 4 years.        CAbout 5 years         DAbout 6 years.

43What does the underlined word "They" in Paragraph 2 refer to?

AViews.                   BVisitors.                 CStops.                    DGuard posts.

44What is the main idea of Paragraph 3?

AWhat AI helpers do.                                   BTechnology changes life.

CHow AI helpers work.                                DTechnology protects humans.

45What can we learn from this passage?

AIt is interesting to use AI helpers.

BIt is important to build greenways.

CIt is possible to balance nature and construction.

DIt is unnecessary to worry about terrible weather.

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1.

  Taking care of pets can be a great way to teach children responsibility, but it's important to be realistic (现实的). If you're keen on bringing an animal into your home and you've designed a plan for its proper care, here are some choices.

• FISH

First-time owners should consider getting cold-water fish as no tank (鱼缸) heater is required. They should research what kinds of fish get along in the same tank, and be aware of life expectancies-some goldfish can live up to 20 years.

• RABBITS

Though rabbits, or nickname bunnies, may seem like a lovely choice, they can live up to ten years and require an amount of care similar to that of a dog or cat. They have their special diet needs, and often don't behave well around small children. Each year, quite a lot of Easter bunnies become homeless when families feel tired of them.

• GUINEAPIGS (豚鼠,荷兰猪)

These small animals are ideal starter pets. Their cages must be cleaned daily, and they require toys to keep their ever growing teeth in check. Once they're used to the new way of life, guinea pigs need daily exercise in a small room without cracks or holes for escape. They don't want to be alone, but if you get two, make sure they're the same sex or they'll have babies.

• BIRDS

Fond of a fixed timetable, birds require feeding at the same time each day. Cages should be cleaned daily and disinfected (消毒) weekly. Birds clean themselves by bathing in dishes of water and grow in cages big enough to spread their wings and fly a short time.

44All the following pets are recommended in the passage EXCEPT ________

ARabbits                  BCats                       CGuinea pigs            DBirds

45As a beginner to raise fish, you'd better ________ in a tank.

Aget some cold-water fish, which get along well     Bget some warm-water fish, which get along well

Cget some cold-water fish and some warm-water fish     Dget only one cold-water fish or warm-water fish

46Rabbits can live up to ________ years, as long as dogs or cats.

Afive                       Bten                         Ctwenty                   Dthirty

47________ are necessary for Guinea pigs to play with or grow.

ATank heaters           BCages                     CToys                      DCracks or holes

48The underlined word "fixed" from the passage means ________.

Aregular                   Brepaired                  Cfull                        Dmixed

49The passage is mainly written to ________.

Aofficers working for SPCA                         Bstaff from the local zoo

Creporters for the Animal World                    Dkids hoping to raise pets at home

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1.

 It was a cool spring morning back in 2009 and I had just started a morning shift as a school crossing guard. Looking out for the children, I suddenly noticed something at sideways. Behind me I first thought it was a small, overweight dog heading towards me. I didn't think much about it, and looked carefully at any approaching children, as well as enjoying the morning sun.

What is wrong with that dog? I thought later on, as I looked back to check on the small dog—it was moving much too fast for itself.

A few minutes later, I felt as if I was being watched, I looked behind me, but the dog had disappeared. Then, as I slowly turned my attention back to the road, I was greatly surprised to see a large koala at my feet and staring right up at me. A number of different solutions crossed my mind. But staying calm was the best. "Are you waiting to cross the road?" I asked the sweet koala. Miss Koala looked away, and scratched (抓挠) behind her ear.

Then it got up on all four feet and impatiently started to cross the road. I quickly checked for any cars, then walked to the road with my stop sign held high, whistle (吹哨) to my lips, and held my breath.

The koala made it to the other side of the street, then continued following the path through the trees and disappeared into bushes.

So why did the koala cross at the school crossing? To safely get to the trees on the other side!

63Is the writer a school crossing guard or an animal protection volunteer?

_________________________

64Where did the writer notice the little animal?

_________________________

65What did the writer choose among the different solutions?

_________________________

66Which word showed that koala didn't realize the danger when crossing the road?

_________________________

67How did the writer help koala cross the road?

_________________________

68What do you think of the koala cross at the school crossing? Why?

_________________________

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1.

Isaac Newton once said, “Nature is no fool.” Indeed, Mother Nature can    9    almost everything humans need if we follow her    10   . But if we break them, she is likely to be    11    and attack us.

The outbreak of NCP in China and some other countries at the beginning of this year is an example. According to Xinhua News Agency, the novel coronavirus(新冠病毒) is    12    to a virus found in a bat in 2017 and probably has an intermediate host(中间宿主). It’s believed that the virus    13    from Huanan Seafood Market, where live    14    animals were sold.

The Wall Street Journal reported that Dr. Peter Daszak said, “This outbreak is a lesson for us. On a global scale(规模), human population density(密度), wildlife diversity(多样性), and land use change are what    15    new disease.”

In ancient times, people needed to rely on nature to survive    16    they held it in awe(敬畏). For example, the American Indians believed that humans are a part of nature and nature is a part of humans. Chinese ancients always pursued(追求) the    17    between nature and humans.

However, as humans    18    more knowledge and make more advanced tools, people try to change and even conquer nature.    19    use more land to make buildings, catch some wild and rare animals to meet their own needs. In this    20   , humans    21    lose contact with nature and even throw it out of balance. Moreover, cutting a large number of forests means carbon dioxide must build up in the atmosphere and it    22    to global warming.

Although we don’t know for sure what first caused the NCP    23   , experts said it’s time for people to “reflect on our relationship with our planet” and “reconnect with this world and everything that we’ve been given”. After all, according to US poet Gary Snyder, “Nature is not the place you visit. It’s our home.”

9Aproduce            Bprevent                   Cprovide                  Dprepare

10Asuggestions      Brules                      Clies                        Dsteps

11Acareful            Bkind                       Ccruel                      Dgentle

12Asimilar            Bdifferent                 Csame                      Dimportant

13Adescribed        Boriginated               Ccollected                Dfound

14Awild               Bcute                       Cstrong                    Dweak

15Acure                Btreat                       Cnotice                    Dcause

16Aand                 Bbecause                  Cso                          Dor

17Arelationship     Bsituation                 Cattention                 Dbalance

18Atalk                Bmaster                    Cremind                   Dattract

19AHe                  BThey                      CYou                       DWe

20Acondition        Bsituation                 Cprocess                   Dprogress

21Agradually        Bfinally                    Cquickly                  Dproperly

22Aaffords            Bleads                      Ctries                       Dsticks

23Aend                 Bstop                       Cstart                       Doutbreak

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1.

promise, look, change, play, allow, hurt, give, take, love, ask, feed

It was a fine day. The sun was shining and the wind was gentle.

The kids 36 in their backyard when a little cat tried to cross into their yard. Unluckily, it got stuck (卡住的) under the fence (篱笆). The kids tried to free the cat, but they couldn't, so they asked their mother for help. The mother freed the cat. The cat 37 so cute that the children begged (乞求) to keep it. Their mother said, "I suppose we can. I don't mind myself, but you must ask your father too."

The kids waited anxiously (焦急地) for their dad back from work. "Do you think our dad 38 us to keep it?" the girl asked. Before the boy answered the girl, they heard their father opening the door. "Hi, daddy," they both shouted loudly at the same time.

"You are surely happier than usual to see me today. What is up?" their father said.

"Nothing, daddy. We just love you so much," the girl replied. That's when their mother said, "Go ahead. 39 your dad."

The girl told her dad what had happened and asked to keep the cat. The father said, "No, you can't. We 40 five cats so far. Your mommy and I have no time 41 care of any more. "Hearing this, the kids lowered (低下) their heads disappointedly.

Seeing the sad looks on the kids' faces, the father 42 his mind. He said, "All right. Since you 43 it so much, you can keep it." Hearing this, the kids happily screamed, "Hooray! Thank you, daddy!" However, the father added (补充说) that they 44 to look after the cat by themselves.

The kids were so happy to have another pet friend. Then the cat 45 the name "Lucky" by the kids.

So the cat had a place to call home.

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知识点:自然
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