For the first time, a causal link has been established between climate(气候) change and the timing of a natural event-the appearance of the common brown butterfly.
Although there have been strong connections between global warming and changes in the timing of events such as animal migration and flowering, it has been hard to show a cause-and-effect link. This is what Michael Kearney and Natalie Briscoe of the University of Melbourne, Australia, have now done.
The researchers compared temperature changes in Melbourne-where the butterfly is common-with recorded observations of the first brown butterfly to be seen in the spring since the 1940s.With each of the past ten years, the butterflies appeared 1.6 days earlier and Melbourne heated by 0.14℃. Overall, the butterfly now appears on average 10.4 days before it did in the 1940s.
The pair are confident in the relationship for two reasons. First, they placed eggs of the butterfly, in special boxes where temperature could be controlled and found that each larval stage had a different response to warmer-than-normal conditions. The egg, which is laid in late summer, and the first larval stage do well at high temperatures, says Kearney. The second to the fifth stages occur in winter and can't survive high temperatures. The knock- on effect is that the larval pupates earlier and the butterfly appears sooner. Second, they made a mathematical model combining these physiological effects of temperature on development with climate data. The model precisely matched the observed changes in butterfly emergence date.
The researchers used several climate models to find out what is likely to have caused the rise in Melbourne's temperature, and ruled out the possibility that natural weather events could account for the warming.
1.What is the relationship between the rise in temperature and the butterfly appearance?
A.They are linked in a difficult way.
B.They are related in a cause-and-effect way.
C.They have a direct relationship with each other.
D.They have no connection with each other.
2.Why were the researchers confident about their finding?
A.They had used the most advanced equipment in the world.
B.Their finding got support from the textbooks.
C.The results of their study is based on expert judgement.
D.Their experiment proved their previous guessing.
3.What does the underlined part "The knock-on effect" in paragraph 4 mean?
A.The effect caused by the thing that happened before.
B.The effect of things that happened at the same time.
C.The effect of one thing causing the other long after.
D.The effect of one thing causing the other quickly.
4.What can be inferred from the text?
A.The exact reason for Melbourne's temperature rise is very clear.
B.Climate models cannot exactly show climate change in history.
C.The timing of the butterfly appearance will be earlier with increased warming.
D.The rise in temperature decides the possibility of natural weather events.
高一英语阅读选择中等难度题
For the first time, a causal link has been established between climate(气候) change and the timing of a natural event-the appearance of the common brown butterfly.
Although there have been strong connections between global warming and changes in the timing of events such as animal migration and flowering, it has been hard to show a cause-and-effect link. This is what Michael Kearney and Natalie Briscoe of the University of Melbourne, Australia, have now done.
The researchers compared temperature changes in Melbourne-where the butterfly is common-with recorded observations of the first brown butterfly to be seen in the spring since the 1940s.With each of the past ten years, the butterflies appeared 1.6 days earlier and Melbourne heated by 0.14℃. Overall, the butterfly now appears on average 10.4 days before it did in the 1940s.
The pair are confident in the relationship for two reasons. First, they placed eggs of the butterfly, in special boxes where temperature could be controlled and found that each larval stage had a different response to warmer-than-normal conditions. The egg, which is laid in late summer, and the first larval stage do well at high temperatures, says Kearney. The second to the fifth stages occur in winter and can't survive high temperatures. The knock- on effect is that the larval pupates earlier and the butterfly appears sooner. Second, they made a mathematical model combining these physiological effects of temperature on development with climate data. The model precisely matched the observed changes in butterfly emergence date.
The researchers used several climate models to find out what is likely to have caused the rise in Melbourne's temperature, and ruled out the possibility that natural weather events could account for the warming.
1.What is the relationship between the rise in temperature and the butterfly appearance?
A.They are linked in a difficult way.
B.They are related in a cause-and-effect way.
C.They have a direct relationship with each other.
D.They have no connection with each other.
2.Why were the researchers confident about their finding?
A.They had used the most advanced equipment in the world.
B.Their finding got support from the textbooks.
C.The results of their study is based on expert judgement.
D.Their experiment proved their previous guessing.
3.What does the underlined part "The knock-on effect" in paragraph 4 mean?
A.The effect caused by the thing that happened before.
B.The effect of things that happened at the same time.
C.The effect of one thing causing the other long after.
D.The effect of one thing causing the other quickly.
4.What can be inferred from the text?
A.The exact reason for Melbourne's temperature rise is very clear.
B.Climate models cannot exactly show climate change in history.
C.The timing of the butterfly appearance will be earlier with increased warming.
D.The rise in temperature decides the possibility of natural weather events.
高一英语阅读选择中等难度题查看答案及解析
It has been a long established ________ that the Spring Festival is a time for family reunion in China.
A. tradition B. history C. intelligence D. system
高一英语单项填空简单题查看答案及解析
For the first time in Hong Kong’s history, an entertainer has been written into middle school textbooks. He is considered one of the best actors in Hong Kong. Yes, he is Chow Yun-fat.
The example of his long hard struggle for success has been used in a chapter in a Hong Kong middle school textbook. Using his experience, students can learn to make the most of their time and to grab every opportunity to succeed．
On hearing about this, Chow said happily, “I really hope that my experiences can make young people understand that one should not be afraid of difficulties and setbacks (挫折), for they are the only way to success.”
Indeed, Chow has travelled a long and difficult path to reach his success. In 1955, he was born into a poor family in Hong Kong. When he was 17, he had to leave school. He worked in a number of jobs—as a postman, camera salesman and taxi driver. These experiences paved (铺路) the way for him to play all kinds of roles later in life.
Chow broke into the film industry in the late 1970s. He was one of the hardest working actors and starred in a number of popular TV dramas and films including “Shanghai Bund”(《上海滩》) and “A Better Tomorrow”. Since 1985, he has won many awards including Taiwan's Golden Horse Awards and Hong Kong Film Awards.
In 1995, he went to Hollywood. Although he was already over 40, he had to learn English. He even put chopsticks in his mouth to practise pronouncing certain sounds. His film, “Crouching Tiger, Hidden Dragon”, began to gain him more fame and recognition around the world. In 1998, the mayor of Chicago set aside January 12 as “Chow Yun-fat Day”.
1.Chow Yun-fat has been written into middle school textbooks mainly because ________.
A. he plays best in Hong Kong
B. he keeps on struggling for success
C. his experiences are very special
D. he is well thought of
2.Chow felt ________ when he learned that he had been written into middle school textbooks.
A. surprised B. shy C. sad D. happy
3.What can we infer from the passage?
A. Chow Yun-fat is proud of his success.
B. Chow Yun-fat prefers to make a living by selling cameras rather than by performing.
C. Chow Yun-fat has won more awards than other actors.
D. Chow Yun-fat is popular both at home and abroad.
4.The underlined sentence (in paragraph 6) suggests ________.
A. chopsticks is of great help to practise English pronunciation
B. Chow Yun-fat is willing to struggle with difficulties
C. Chow Yun-fat has suffered a lot before he went to Hollywood
D. it is hard for a person who is over 40 years old to learn spoken English
5.The author wrote this passage to ________.
A. introduce Chow’s films
B. praise Chow for his excellent performance
C. call on people to learn from Chow
D. show why Chow is popular
高一英语阅读理解困难题查看答案及解析
Fear may be felt in the heart as well as in the head，according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.
Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting and pumping blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation.
Sarah Garfinkel at the Brighton and Sussex Medical School said：“Our study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart.”
The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, “The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed.Thus, our hearts can also affect what we see and what we don't see—and guide whether we see fear.”
To further understand this relationship，the scientists also used a brain scanner(扫描仪)to show how the brain influences the way the heart changes a person's feeling of fear.
“We have found an important mechanism by which the heart and brain ‘speak’ to each other to change our feelings and reduce fear,”Dr Garfinkel said.
“We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successful treatments for anxiety disorders，and also for those who may be suffering from serious stress disorder.”
1.What is the finding of the study? ________.
A. Fear is a result of one's relaxed heartbeat.
B. One's heart affects how he feels fear.
C. Fear has something to do with one's health.
D. One's fast heartbeats are likely to cause fear.
2.The study was carried out by analyzing ________.
A. volunteers' heartbeats when they saw terrible pictures
B. the time volunteers saw fearful pictures and their health conditions
C. volunteers' reactions to horrible pictures and data from their brain scans
D. different pictures shown to volunteers and their heart－brain communication
3.Which of the following is closest in meaning to “mechanism” in Paragraph 6?
A. order B. treatment C. machine D. system
4.This study may contribute to ________．
A. treating anxiety and stress better
B. explaining the cycle of fear and anxiety
C. finding the key to the heart－brain communication
D. understanding different fears in our hearts and heads
高一英语阅读理解中等难度题查看答案及解析
For centuries, the body’s blood has been linked closely with the emotions．People who show no human emotions or feelings, are said to be cold-blooded killer．For example, the police are searching for a cold-blooded killer．He seems to kill for no reason, and no emotion, as if taking someone’s life as nothing．
Cold can affect other parts of the body．The expression “get cold feet” has nothing to do with cold or your feet．The expression means being afraid to do something you have decided to do．For example, you agree to be president of an organization．But then you learn that all the other officers have resigned, and all the work of the organization will be your responsibility．You are likely to get cold feet about being president when you understand the situation.
The expression “give someone the cold shoulder” probably comes from the physical act of turning your back toward someone, instead of speaking to him face to face．You may give a cold shoulder to a friend who has not kept a promise he made to you．Or, to someone who has lied about you to others．
A cold fish is not a fish．It is a person．But it is a person who is unfriendly, unemotional and shows no love or warmth．A cold fish does not offer much of himself to anyone．Someone who is a cold fish could be cold-hearted．Now a cold-hearted person is someone who has no sympathy(同情心)．Several popular songs in recent years were about cold-hearted men or cold-hearted women who, without feelings, broke the hearts of their lovers．
Out in the cold means not getting something that everybody else got．A person might say that everybody but him got a pay raise---he was left out in the cold．And it is not a pleasant place to be．
1.There are _________ expressions related to cold that are mentioned in the passage．
A．3 B．4 C．6 D．7
2. When you refuse to speak to a man and treat him in a distant way, you may express by “_________”．
A．I give him the cold shoulder B．I think he is a cold-blooded man
C．I think he is a cold fish D．I’m likely to get cold feet
3.If Sue shows absolutely no reaction（反应） to those awful pictures of starving children in Africa, you will say _________．
A．she is a cold-blooded killer B．she gets cold feet
C．she is a cold fish D．she is out in the cold
4.We can use the expression “__________” to describe a man who hurts his lover without mercy．
A．cold-blooded B．cold shoulder C．cold feet D．cold-hearted
5.The topic of this passage is about _________．
A．the relationship between cold and our body
B．some expressions about friendship
C．some expressions connected with cold
D．how cold weather comes into being
高一英语阅读理解中等难度题查看答案及解析
To stamp out bush meat, teach kids first.
“The meat of masked civets can be eaten and has long been considered a rare precious meat from the mountain," says a science book for kids.
But following the outbreak of the novel coronavirus, which has been linked to the consumption of bush meat, a reader complained online that the description was improper.
1. The action is welcomed, as some research shows the virus came from dead bats, while others suspect it might have been transmitted from bats to pangolins (穿山甲) and from them to humans. Whichever animal was the host, researchers are in agreement that bush meat is not safe for consumption.
2. The law prohibits consumption of protected species, but those not on the protected list become sitting ducks for those who love eating wild animals. Without a law in place, one cannot stop restaurants from serving wild animal meat.
The first step toward legislation prohibiting bush meat is to build consensus. 3. Only when everyone realizes the dangers of eating bush meat will they give up the habit and push for legislation.
4. Teaching children from a young age not to consume wild animals will make it easier to ensure they refrain from doing so when they grow up.
The science book has been withdrawn from shops. And it is hoped that other press houses across the country browse through their published books and make similar corrections.5.
A.Kids are so crazy.
B.Education is essential.
C.Improving our diets can benefit a lot.
D.The awareness should begin early.
E.However,a public outcry alone cannot help.
F.The press withdrew the book from all shops.
G.Striking out consumption of bush meat in children’s reading material is a good way to begin.
高一英语七选五困难题查看答案及解析
----Is this the first time you _____ Beijing?
----No. But it has been 3 years since I last here.
A. visit; come B. visited; came
C. have visited; came D. have visited; come
高一英语单项填空中等难度题查看答案及解析
This is the first time John1.（visit）Xiao Li’s hometown-Xiamen. It has been 6 years 2.John and Xiao Li last saw each other and John thinks that this is one of the most3.(attract) places that he has been to in China. Xiao Li says he feels fortunate living a city4.the coast in spite of so many5.(tour) in the summer.
There are some shopping malls from 6. John could buy a few presents and a huge apartment block , but the rent for an apartment is very7.. After8.(leave)the business district , they approached the harbor.
Gulangyu Island is a gorgeous island with some interesting9.（architectural）.When they stopped, they had lunch in a fish restaurant because John is10. (starve).
高一英语短文填空中等难度题查看答案及解析
It was the first time she______ at a summer school and she really enjoyed it
A. has been. B. was. C. had been. D. would be
高一英语单项填空中等难度题查看答案及解析
—Is this the first time that you ______ Nanchang?
—No. But it has been 3 years since I last ____ here.
A. visit; come B. visited; came
C. have visited; came D. have visited; come
高一英语单项填空中等难度题查看答案及解析