Since December,there have been tens of thousa...

Since December,there have been tens of thousands of the COVID-19 cases both in and out of China,caused by a previously unknown virus:novel coronavirus.

What are they?Viruses are considered to be non-living organisms(有机物).They can't reproduce(繁殖) on their own. Instead, they invaded the cells of living organisms to reproduce, spread and take over.But the basic question is,where did viruses first come from? Until now, no clear explanation for their origin exists.

Understanding the origins of viruses means fully understanding the history of their hosts not only humans,but also bacteria,plants and other animals,which is a complicated task. However,there are three main theories to explain the origin of viruses.First,viruses started as independent organisms,then became parasites(寄生者). Second,viruses evolved(进化) from pieces of DNA or RNA that"escaped"from larger organisms.The third one is that viruses co-evolved with their host cells,which means they existed alongside these cells.

For the time being,these are only theories.The technology and proofs we have today cannot be used to test these theories and discover the most plausible explanation.Continuing studies may provide us with clearer answers.Or future studies may find that the answer is even more mysterious than it now appears.

1.What can we learn about viruses from the article?

A.They mainly infect animals and plants.

B.They are really small living organisms.

C.They are more dangerous than bacteria.

D.They can't reproduce unless they find a host cell.

2.Which of the following might explain the origin of viruses?

A.They evolved along with their host cells.

B.They evolved from the DNA or RNA in animals.

C.They evolved from the fossils of large organisms.

D.They evolved from parasites to independent organisms.

3.The underlined word"plausible"in the last paragraph probably means______.

A.creative B.reasonable

C.common D.unbelievable

4.What can we conclude from the article?

A.The author is confident about future virus research.

B.Viruses will become more like bacteria as they evolve.

C.Viruses live longer in human host cells than in animals.

D.It may take a long time to understand the origin of viruses.

高一英语阅读理解中等难度题查看答案及解析

Humans have been keeping animals as pets for tens of thousands of years, but Dr Jean-Loup Rault, an animal scientist at the University of Melbourne in Australia, believes new companions are coming: robot pets.

“Technology is moving very fast,” Rault told ABC News, “The Tamagotchi in the early 1990s was really the first robotic pet, and now Sony and other big companies have improved them a lot.”

This may not________sit well with________pet lovers. After all, who would choose a plastic toy over a lovely puppy? But Rault argues that the robotic kind has a lot going for it: “You don’t have to feed it, you don’t have to walk it, it won’t make a mess in your house, and you can go on a holiday without feeling guilty.” The technology also benefits those who are allergic to pets, short on space, or fearful of real animals.

It’s not clear whether robot pets can replace real ones. But studies do suggest that we can bond with these smart machines. People give their cars names and kids give their toy animals life stories. It’s the same with robots. When Sony stopped its repair service for its robot dog Aibo in March 2014, owners in Japan held funerals.

As an animal welfare researcher, Rault is concerned about how robotic pets could affect our attitudes towards live animals. “If we become used to a robotic companion that doesn’t need food, water or exercises, perhaps it will change how humans care about other living beings,” he said.

So are dogs and cats a thing of the past, as Rault predicts? For those who grew up with living and breathing pets, the mechanical kind might not do. But for our next generation who are in constant touch with smart technology, a future in which lovely pets needn’t have a heartbeat might not be a far-fetched dream.

1.What does the underlined phrase “sit well with” means?

A.be refused by B.be beneficial to

C.make a difference to D.receive support from

2.What are the advantages of robot pets?

a. They are plastic and feel smooth.

b. Owners needn’t worry about them when going out.

c. They can help cure allergies(过敏).

d. They save space and costs.

A.ab B.bc

C.bd D.cd

3.We can learn from the passage that___________.

A.Sony is the first company to produce robot pets Aibo.

B.People can develop strong bond(联系、关系) with their robot pets.

C.Rault thinks robot pets still have a long way to go.

D.Robot toys may help people care more about living beings.

4.The passage mainly tells us___________.

A.the advantages of robot toys B.the popularity of robot pets

C.living pets are dying out. D.robot pets are coming.

高一英语阅读理解中等难度题查看答案及解析

The world is witnessing the worst refugee crisis(难民危机) since World War II. Tens of thousands of people are fleeing civil war and unrest(动荡) to find new homes in Europe — sometimes with sad consequences(后果).

On Aug 27, Austrian officials found the dead bodies of 71 Syrian migrants(移民) in a deserted truck near Austrian-Hungarian border, just as European leaders were holding a meeting in Vienna to figure out how to deal with the refugee crisis. On the same day, 200 migrants were found dead and 200 rescued as two boats packed with refugees sank off the coast of Libya, according to media reports.

The terms “migrant” and “refugee” are often used interchangeably. But there’s a big difference between them, says an article in the Atlantic magazine. Here is how the United Nations defines refugees:

“Refugees are persons fleeing armed conflict( 武 装 冲 突 ) or ill-treatment. Their situation is often so dangerous and intolerable that they cross national borders to search for safety in nearby countries. …These are people for whom denial(拒绝) of protection has possibly deadly consequences.”

Migrants, on the other hand, move mainly to improve their lives by finding work, or for education, family reunion or other reasons, said the agency.

Countries should offer refugees certain protections under their international treaty obligations(条约义务).

This is why some states hesitate to admit those people who are fleeing unrest in their home countries.

When talking about refugee and immigration problems, many media outlets use “illegal immigrant”. Critics say that it gives the impression that it’s the person that is illegal rather than their actions. The UN and the EU parliament have called for an end to the phrase, the BBC reported.

1.The differences between “refugee” and “migrant” are written with the purpose of _____.

A.defining the two words clearly

B.indicating why some states are not willing to admit refugees

C.showing that refugees are more than migrants

D.urging European countries to accept more refugees

2.According to the text　　 “refugee” differs from “migrant” because _____.

① they both cross national borders but with different purposes

② refugees are illegal while migrants are legal

③ refugees may face deadly consequences while migrants are relatively safe

④ refugees are treated badly while migrants are highly respected

A.①④ B.①③ C.②③④ D.①③④

3.According to the text, what may be discussed in the next several paragraphs?

A.Explanations for “illegal immigrant”.

B.Examples about the refugee crisis in Europe.

C.Measures to offer refugee protections.

D.Causes of the refugee crisis in Europe.

高一英语阅读理解困难题查看答案及解析

There have been nine secetary0generals of the United Nations (联合国秘书长) since the first one was appointed (任命) in 1946. But somehow, Kofi Annan has been the one that people tend to remember the best.

Annan, born in Ghana, was the first black African to ever hold the job. And he won a Nobel Peace Prize in 2001. Just as the New York Times put it, Annan “redefined (重新定义) the UN”.

During those 10 years—from 1997 to 2006—the world was at its worst. This period witnessed the NATO bombing of Yugoslavia in 1999, the Sept. 11 attacks of 2001, and the US’s invasion (侵略) of Iraq in 2003.

On its own, the UN has little power. However, Annan combined that power with his own to achieve great things. He kept the world from falling apart from attacks and wars. He also fought for women’s rights and the educational rights of children, and fought against the spread of HIV in Africa.

It was because of these things that he and the UN were awarded a Nobel Peace Prize in 2001, for their work toward “a better organized and a more peaceful world”. Annan also put “people” at the center of everything the UN does. He took the trouble to relate to (建立联系) others—young or old, senior or junior, ambassador (大使) or security guard (保安).

Maybe what Annan did was more than just redefine the UN. Indeed, as Antonio Guterres, current secretary-general of the UN, said, “In many ways, Kofi Annan was the UN.”

1.According to the passage, we can learn that ______.

A. secretary-generals are not usually remembered by people

B. people believe that Annan has been the best leader of Ghana

C. Annan is the only black man to win the Noble Peace Prize

D. Annan is the first black African secretary-general of the UN

2.The underlined word can be replaced by “______”.

A. saw B. made

C. prevented D. happened

3.What did Annan do to redefine the UN?

A. Women and children were kept from being attacked.

B. He stopped the spread of HIV and found the cure for AIDS in Africa.

C. He made the world a better and more peaceful place.

D. He has every country get the same rights in the UN.

4.What can be inferred from the last two paragraphs?

A. Annan has trouble in communicating with others.

B. People are believed less important than others by Annan.

C. The current leader of the UN thins highly of Annan and his great achievements.

D. People in higher position easily get more support from the leaders of the UN.

高一英语阅读理解简单题查看答案及解析

While walking around the Xixi National Wetland Park, I found there were tens of thousands of people, young and old, ______ for the flower festival. Beautiful indeed!

高一英语单项填空简单题查看答案及解析

There are two lakes near Joe’s hometown, the larger of          covers nearly ten thousand square kilometers.

A. which         B. whom        C. whose        D. where

高一英语单项填空简单题查看答案及解析

35. There are two lakes near Joe’s hometown, the larger of_______covers nearly ten thousand square kilometers.

高一英语单项填空简单题查看答案及解析

For thousands of years, poetry (诗) has been the favorite type of literature (文学) in China. There were many famous poets from different periods of time in Chinese 1., and most of their poems 2. still read and appreciated today.

To remind people 3. those classic Chinese poems, CCTV has produced a TV 4. called Chinese Poetry Competition. The final of the show’s second season was shown in February. A girl 5. Wu Yishu who studies at the High School Affiliated to Fudan University, came out to be the winner of the 6.. She recited lines from the Classic of Poetry (《诗经》): “In July, the crickets (蟋蟀) are in the field; In7., they are in the yard; In September, they are at the door; In October, the crickets enter and crawl under oar beds.” “I really admire 8. knowledge of poems. The first time I saw her　 9. traditional Han clothing on TV, I was very impressed by her classical looks. She always keeps so calm through the show, which is very 10. for her age.” said Huang Zijin after watching the final show.

Mr. Huang also said we would find Chinese cultured and taste the beauty of life by enjoying poems.

高一英语短文填空简单题查看答案及解析

I have had thousands of classes since I started school nine years ago. But only one　 _____was the most important.

It happened last term just after I had got a bad result in an exam. I was sad and had lost my confidence .I decided to go to a class which can tell me how to be ___

The speaker walked into the room But he didn’t start talking like a teacher. Instead, he held up a twenty yuan note!

“Who wants this?” he asked. Unsurprisingly,　 ____　 of us in the class held up our hands. The speaker smiled. Then he put up the note on the blackboard and asked the same question. Again, we all put up our hands. The speaker smiled again, but　　 ___ nothing. Suddenly, he threw the note onto the floor! Then he asked the same question a third time. I didn’t ___ what the speaker was doing. Why was he asking the same question again and again? I didn’t know what to do. I wanted the note,　 ____ I put my hand up again. After a while, he____　　 the note and started to laugh. ’You have all just told me how to become successful,” he said to us with the note in his hand.

“The note is worth twenty yuan. It is　　 __　 worth twenty yuan, even though I throw it on the floor. You are like the note. No matter what happens to you, you still have your teeth.’ When I heard those words, I ____　 I　 was worth a lot. I may have done in an exam, but it doesn’t___　 I can’t do well in the future. If I believe in myself, I will be successful!

1.A. classroom　　 B. subject　　 C. class　　 D. school

2.A. comfortable　　 B. successful　　 C. famous　　 D. rich

3.A. both　　 B. neither　　 C. all　　 D. none

4.A. said　　 B. bought　　 C. saw　　 D. wanted

5.A. remember　　 B. understand　　 C. notice　　 D. find

6.A. so　　 B. though　　 C. if　　 D. or

7.A. took out　　 B. threw away　　 C. picked up　　 D. put down

8.A. never　　 B. sometimes　 　　 C. hardly　　 D. always

9.A. realized　　 B. forgot　　 C. dreamed　　 D. decided

10.A. know　　 B. mean　　 C. think　　 D. complain

高一英语完形填空中等难度题查看答案及解析

I have had thousands of classes since I started school nine years ago. But only one _______was the most important.

It happened last term just after I had got a _______ result in an exam. I was sad and had lost _______. I decided to go to a class which can tell me how to be _______.

The speaker walked into the room. But he did not start talking like a teacher. _______, he held up a twenty dollars note!

“Who wants this?” he asked. Unsurprisingly, _______ of us in the class held up our hands. The speaker smiled. Then he put up the note on the blackboard and asked the _______ question. Again, we all put up our hands. The speaker smiled again, but _______ nothing. Suddenly, he threw the note onto the floor! Then he asked the same _______ a third time.

I didn’t ________ what the speaker was doing. Why was he asking the same question again and again? I didn’t know what to do. I wanted the note, ________ I put my hand up again. After a while, he ________ the note and started to laugh. “You have all just told me how to become successful,” he said to us ________ the note in his hand.

“The note is worth twenty dollars. It is ________ worth twenty dollars, even though I throw it on the floor. You are like the________. No matter ________ happens to you, you still have your worth.”

When I heard those words, I was deeply ________. Suddenly, I ________ I was worth a lot. I may have done badly in an exam, but it doesn’t ________ I can’t do well in the future. If I believe in ________, I will be successful!

1.A. classroom　　 B. subject　　 C. class　　 D. school

2.A. same　　 B. good　　 C. lucky　　 D. bad

3.A. shelter　　 B. heart　　 C. face　　 D. concern

4.A. extreme　　 B. successful　　 C. famous　　 D. rich

5.A. Instead　　 B. Exactly　　 C. Otherwise　　 D. Because

6.A. both　　 B. neither　　 C. all　　 D. none

7.A. same　　 B. different　　 C. difficult　　 D. math

8.A. said　　 B. bought　　 C. saw　　 D. wanted

9.A. student　　 B. teacher　　 C. question　　 D. way

10.A. remember　　 B. understand　　 C. notice　　 D. find

11.A. so　　 B. though　　 C. if　　 D. or

12.A. took out　　 B. packed up　　 C. picked up　　 D. put down

13.A. from　　 B. with　　 C. by　　 D. above

14.A. never　　 B. sometimes　　 C. hardly　　 D. always

15.A. exam　　 B. question　　 C. view　　 D. note

16.A. when　　 B. who　　 C. what　　 D. how

17.A. worried　　 B. ruined　　 C. suffered　　 D. moved

18.A. realized　　 B. forgot　　 C. dreamed　　 D. decided

19.A. know　　 B. mean　　 C. think　　 D. vote

20.A. money　　 B. friendship　　 C. violence　　 D. myself

高一英语完形填空中等难度题查看答案及解析