Pretoria, South Africa – Hundreds of swimmers play in the water along a South Africa beach. Suddenly a huge shark appears off shore and heads for the bathers. Before it can get close to the swimmers, the shark, for some mysterious reason, starts swimming parallel to the beach. Then it turns away from the shore and heads out to sea, leaving the swimmers untouched.
Such a scene will soon become common along shark-in-fasted (鲨鱼成群的) shores. An electrical engineer from the University of Pretoria has developed an electrical system that repels (击退) sharks by controlling their movements. Confused by this action, the sharks end up turning away from the beach.
In this unusual shark-repellent method, an insulated (绝缘的) cable is buried on the bottom of the sea around a beach where people swim. When an electric current is sent through the cable, an electric field is produced in the water above the cable.
When shark swims into the electric field, nerve cells just below the shark' s skin will sense the field. The electricity produces a reflex (反射作用) action in the shark' s muscles, causing the dangerous animal to swim parallel to the cable. Confused by increasing loss of control of its muscles, the shark suddenly changes its direction and heads seaward, away from the electric field.
In a test of the invisible new shark-repellent system, a cable was placed around a beach in St. Lucia, an island around the beach a long time ago to keep sharks away from swimmers, and a net was left in place during the experiment.
When the electric field was left on for more than a year and a half, no sharks were found in the net. However, when the power was turned off,89 sharks ended up in the net.
Using the electric-wall method instead of net to protect bathers would avoid the needless death of many sharks, said biologists. Currently, thousands of sharks die each year when they become trapped in protective nets that surround holiday resorts in Africa and Australia. About 10 to 15 humans are killed by sharks annually.
1.Why doesn' t the shark attack the swimmers according to the passage?
A.Because there are so many swimmers in the water.
B.Because the shark isn’t so hungry as to eat the swimmers.
C.Because of some mysterious power from the heaven.
D.Because there is an invisible electric field confusing the shark.
2.An electrical engineer from the University of Pretoria has developed __ .
A.a protective net
B.a new shark-repellent system
C.the electric field
D.an insulated cable
3.An electric field is produced in the water above the cable .
A.only when a shark swims into the electric field
B.only when an insulated cable is buried on the bottom of the sea around a beach where people swim
C.only when an electric current is sent through the cable
D.only when the sharks are trapped in protective nets
4.Which of the following is NOT TRUE according to the passage?
A.Protective nets had been fixed earlier than the new shark-repellent system.
B.The new shark – repellent system will probably replace the protective nets.
C.Thousands of sharks have died each year since this new system was put into use.
D.Using the electric-wall instead of nets would avoid the needless death of many sharks.
高一英语阅读理解简单题
Pretoria, South Africa – Hundreds of swimmers play in the water along a South Africa beach. Suddenly a huge shark appears off shore and heads for the bathers. Before it can get close to the swimmers, the shark, for some mysterious reason, starts swimming parallel to the beach. Then it turns away from the shore and heads out to sea, leaving the swimmers untouched.
Such a scene will soon become common along shark-in-fasted (鲨鱼成群的) shores. An electrical engineer from the University of Pretoria has developed an electrical system that repels (击退) sharks by controlling their movements. Confused by this action, the sharks end up turning away from the beach.
In this unusual shark-repellent method, an insulated (绝缘的) cable is buried on the bottom of the sea around a beach where people swim. When an electric current is sent through the cable, an electric field is produced in the water above the cable.
When shark swims into the electric field, nerve cells just below the shark' s skin will sense the field. The electricity produces a reflex (反射作用) action in the shark' s muscles, causing the dangerous animal to swim parallel to the cable. Confused by increasing loss of control of its muscles, the shark suddenly changes its direction and heads seaward, away from the electric field.
In a test of the invisible new shark-repellent system, a cable was placed around a beach in St. Lucia, an island around the beach a long time ago to keep sharks away from swimmers, and a net was left in place during the experiment.
When the electric field was left on for more than a year and a half, no sharks were found in the net. However, when the power was turned off,89 sharks ended up in the net.
Using the electric-wall method instead of net to protect bathers would avoid the needless death of many sharks, said biologists. Currently, thousands of sharks die each year when they become trapped in protective nets that surround holiday resorts in Africa and Australia. About 10 to 15 humans are killed by sharks annually.
1.Why doesn' t the shark attack the swimmers according to the passage?
A.Because there are so many swimmers in the water.
B.Because the shark isn’t so hungry as to eat the swimmers.
C.Because of some mysterious power from the heaven.
D.Because there is an invisible electric field confusing the shark.
2.An electrical engineer from the University of Pretoria has developed __ .
A.a protective net
B.a new shark-repellent system
C.the electric field
D.an insulated cable
3.An electric field is produced in the water above the cable .
A.only when a shark swims into the electric field
B.only when an insulated cable is buried on the bottom of the sea around a beach where people swim
C.only when an electric current is sent through the cable
D.only when the sharks are trapped in protective nets
4.Which of the following is NOT TRUE according to the passage?
A.Protective nets had been fixed earlier than the new shark-repellent system.
B.The new shark – repellent system will probably replace the protective nets.
C.Thousands of sharks have died each year since this new system was put into use.
D.Using the electric-wall instead of nets would avoid the needless death of many sharks.
高一英语阅读理解简单题查看答案及解析
His first successful fight was for the equal rights of black people in South Africa. Then, as the first black president, he fought to unite the country and organize the government. Now Nelson Mandela has set his sights on a new enemy, AIDS.
On March 19 the 82-year-old, former president, hosted his second AIDS-awareness concert. He warned that 25 million people in Africa were already infected with the fatal disease.
Mandela was born in a small village in South Africa in 1918. He was adopted by the chief of his tribe and could have been a chief himself and lived a happy country life.
But he refused to be a chief when his people lived under racial discrimination(歧视). He decided to fight for equal rights for all the people in South Africa. Before 1990, under the country’s Racial Segregation Law, colored and white people lived separately. Black people were treated unfairly even when taking a bus. Blacks had to stand at the back of the bus to make room for white people even when there were only a few of them on board.
For his opposition to the system, Mandela was arrested and spent 27 years in prison. He was freed in 1990 and became the president of the country after the first election were held in which everyone could vote.
Mandela was not only a political fighter who attacked with speeches. He was also a trained boxer and fought in the ring when he was young.
“Although I did not enjoy the violence of boxing, I was interested in how one moved one’s body to protect oneself, how one used a strategy both to attack and retreat”, he wrote in his autobiography.
As a skillful fighter, he chose music as his weapon against AIDS. He hopes to win another victory against AIDS.
1.When was Mandela arrested?
A.In 1963 | B.In 1990 |
C.When he refused to be a chief | D.When he became the president |
2.Nelson Mandela succeeded in doing the following except _______.
A.winning the equal rights for the black people in South Africa |
B.Uniting South Africa |
C.organizing a government in South Africa |
D.controlling the spread of AIDS |
3.If Nelson Mandela hadn’t fought against racial discrimination, he_______.
A.could have been the president of South Africa |
B.could still have lived a happy life |
C.could have been in a difficult situation |
D.would have been an excellent boxer |
4.Which of the following statements can best describe the life of Nelson Mandela?
A.struggle is his life |
B.sports make his fame |
C.fight for equal rights |
D.a great fighter against government. |
高一英语阅读理解中等难度题查看答案及解析
While my father was an officer of the British army in South Africa, we lived in a two-storeyed house. One evening my father and sister and I were sitting together. He was ______ the window. I suddenly ______ that he was turning very pale. I sat ______, for I didn’t want to ______ my sick sister. Soon father said in a ______ voice, “Kate and Joan, a friend of mine ______ here to see me this evening, and I wish to be ______ him. Will you go up to your own room?” We obeyed, went to our room and closed the door.
Soon I heard a ______ like that of a door burst in, and then a climb of feet. They were hurrying ______ the narrow stairs. Fearing that there was ______ near, I seized the pistol (手枪) on the table. Then I heard my father cry out, “For God’s sake, child, ______ the door.” I did so. To my scare, I saw, ______ my father’s shoulder; a gorilla (大猩猩), the worst enemy of the soldier in Europe, he was ______ my father. I raised the pistol and fired. The animal fell backwards with an/a ______ loud cry. Father took the still ______ pistol from my hand, and fired another shot, which killed the gorilla.
It happened when father ______ us upstairs because he thought he would be able to ______ the door—which was twenty feet away______ the animal reached it. However, the gorilla was too ______; and this was the cause of the ______ flight (=escape) up the stairs.
1.A. towards B. opposite C. inside D. behind
2.A. knew B. learned C. felt D. noticed
3.A. still B. concentrated C. fascinated D. unhappily
4.A. hurt B. frighten C. lose D. bother
5.A. loud B. sad C. calm D. pleasant
6.A. was B. comes C. would be D. is coming
7.A. friendly to B. alone with C. dependent on D. careful with
8.A. sound B. cry C. voice D. shout
9.A. to B. down C. via D. up
10.A. some difficulty B. a thief C. some danger D. an accident
11.A. open B. close C. pull D. draw
12.A. on B. above C. over D. from
13.A. aiming at B. marching towards C. shooting at D. running into
14.A. exciting B. exhausting C. angry D. natural
15.A. sounding B. burning C. frightening D. smoking
16.A. had taken B. had sent C. had driven D. had forced
17.A. push B. lock C. guard D. defend
18.A. unless B. when C. before D. though
19.A. quick B. huge C. heavy D. disappointing
20.A. anxious B. embarrassed C. fearless D. hurried
高一英语完形填空中等难度题查看答案及解析
Elias was a black worker in South Africa. In the year of 1952, he met Mandela ___1._ worked as a lawyer and offered legal __2._ (guide) to poor black people. At that time black people were having _3.__ difficult time and were treated __4. (fair) . They had no rights voting and had to live in the ___5._ (poor ) part of town. What’s worse, they had little chance to be __6.__ (educate) and couldn’t get the jobs they wanted. __7.__ Elias turned to Mandela __8.__ advice, Mandela helped him generously. Elias was grateful for his help _9. later he joined in the ANC Youth League which __10.___ (organize) by Mandela and fought for the equal rights of black people.
高一英语语法填空中等难度题查看答案及解析
听下面一段独白,回答以下小题。
1.Which team has played in every World Cup?
A. Brazil. B. Portugal. C. South Africa.
2.What is the trophy(奖杯) named after?
A. A famous place. B. A special stadium. C. The organizer.
3.How many cities was the 2018 World Cup held in?
A. 32. B. 15. C. 11.
4.Why does the speaker say Japan made history?
A. They won the champion once.
B. They beat a South American team.
C. They made their fourth appearance.
高一英语短文困难题查看答案及解析
Nelson Mandela, who became____ president of South Africa in1994, passed away on December 5,2013, at _____age of 95.
A. a; the B. /; the C. a; / D. the; the
高一英语单项填空中等难度题查看答案及解析
Two Chinese living in South Africa were killed in a robbery (抢劫) on February 5, bringing the total number of Chinese killed in the country to four in less than a month.
Chen Jianqing, 35, from Southeast China's Fujian Province, who ran a shop with her husband in a small town 45 kilometers away from South African capital Johannesburg, was shot dead.
"One of her business partners died later in the hospital," the Chinese consulate (领事馆) officials in Johannesburg said yesterday. "Local police are trying to find more information about the case. And we have told the victims' (遇难者的) relatives and are helping them come to Johannesburg," Consul Wu Gang told China Daily. Chen's husband was injured during the robbery but did not suffer seriously, said Wu.
The robbery happened at about 5:45 pm local time and the armed robbers ran away after taking more than 50,000 South African rand (US $8,200) and some jewelry, Xinhua News Agency reported.
The killing happened just three days after Chen Jingmin, a 23-year-old man from Qingdao, Shandong Province, was shot dead north outside Johannesburg by armed robbers. On January 10, a Hong Kong businessman was attacked and robbed at his home in Johannesburg and died the next day in the hospital. All these happened just in less than a month.
According to records, there were more than 40 robberies attacking Chinese in South Africa last year, in which eight were killed. More than 100,000 Chinese are doing various kinds of businesses in South Africa, according to a Chinese official in the country. An increasing number of them are becoming targets (目标) of robbers after buying big houses or luxury cars, the official said.
1.The passage is probably ______.
A. a business story B. a scientific article
C. a newspaper report D. an official document
2.Who were killed on February 5 in a small town near Johannesburg?
A. Chen Jianqing and her husband.
B. Chen Jianqing and one of her partners.
C. Chen Jingmin and a Hong Kong businessman.
D. Chen Jingmin and one of his relatives.
3.How many Chinese were killed in South Africa since January?
A. 2 B. 4. C. 5. D. 8.
4._______are more likely to be robbed in South Africa.
A. Those Chinese who depend too much on local police.
B. Those Chinese who live near the capital of South Africa.
C. Those Chinese who open shops selling Chinese goods.
D. Those Chinese who leave others the impression of being rich.
高一英语阅读理解中等难度题查看答案及解析
Two Chinese living in South Africa were killed in a robbery (抢劫) on February 5, bringing the total number of Chinese killed in the country to four in less than a month.
Chen Jianqing, 35, from Southeast China's Fujian Province, who ran a shop with her husband in a small town 45 kilometers away from South African capital Johannesburg, was shot dead.
"One of her business partners died later in the hospital," the Chinese consulate (领事馆) officials in Johannesburg said yesterday. "Local police are trying to find more information about the case. And we have told the victims' (遇难者的) relatives and are helping them come to Johannesburg," Consul Wu Gang told China Daily. Chen's husband was injured during the robbery but did not suffer seriously, said Wu.
The robbery happened at about 5:45 pm local time and the armed robbers ran away after taking more than 50,000 South African rand (US $8,200) and some jewelry, Xinhua News Agency reported.
The killing happened just three days after Chen Jingmin, a 23-year-old man from Qingdao, Shandong Province, was shot dead north outside Johannesburg by armed robbers. On January 10, a Hong Kong businessman was attacked and robbed at his home in Johannesburg and died the next day in the hospital. All these happened just in less than a month.
According to records, there were more than 40 robberies attacking Chinese in South Africa last year, in which eight were killed. More than 100,000 Chinese are doing various kinds of businesses in South Africa, according to a Chinese official in the country. An increasing number of them are becoming targets (目标) of robbers after buying big houses or luxury cars, the official said.
1.The passage is probably ______.
A. a business story B. a scientific article
C. a newspaper report D. an official document
2.Who were killed on February 5 in a small town near Johannesburg?
A. Chen Jianqing and her husband.
B. Chen Jianqing and one of her partners.
C. Chen Jingmin and a Hong Kong businessman.
D. Chen Jingmin and one of his relatives.
3.How many Chinese were killed in South Africa since January ?
A. 2 B. 4. C. 5. D. 8.
4._______are more likely to be robbed in South Africa.
A. Those Chinese who depend too much on local police
B. Those Chinese who live near the capital of South Africa
C. Those Chinese who open shops selling Chinese goods
D. Those Chinese who leave others the impression of being rich
高一英语阅读理解中等难度题查看答案及解析
Two Chinese living in South Africa were killed in a robbery (抢劫) on February 5, bringing the total number of Chinese killed in the country to four in less than a month.
Chen Jianqing, 35, from Southeast China's Fujian Province, who ran a shop with her husband in a small town 45 kilometers away from South African capital Johannesburg, was shot dead.
"One of her business partners died later in the hospital," the Chinese consulate (领事馆) officials in Johannesburg said yesterday. "Local police are trying to find more information about the case. And we have told the victims' (遇难者的) relatives and are helping them come to Johannesburg," Consul Wu Gang told China Daily. Chen's husband was injured during the robbery but did not suffer seriously, said Wu.
The robbery happened at about 5:45 pm local time and the armed robbers ran away after taking more than 50,000 South African rand (US $8,200) and some jewelry, Xinhua News Agency reported.
The killing happened just three days after Chen Jingmin, a 23-year-old man from Qingdao, Shandong Province, was shot dead north outside Johannesburg by armed robbers. On January 10, a Hong Kong businessman was attacked and robbed at his home in Johannesburg and died the next day in the hospital. All these happened just in less than a month.
According to records, there were more than 40 robberies attacking Chinese in South Africa last year, in which eight were killed. More than 100,000 Chinese are doing various kinds of businesses in South Africa, according to a Chinese official in the country. An increasing number of them are becoming targets (目标) of robbers after buying big houses or luxury cars, the official said.
1.The passage is probably ______.
A. a business story B. a scientific article
C. a newspaper report D. an official document
2.Who were killed on February 5 in a small town near Johannesburg?
A. Chen Jianqing and her husband.
B. Chen Jianqing and one of her partners.
C. Chen Jingmin and a Hong Kong businessman.
D. Chen Jingmin and one of his relatives.
3.How many Chinese were killed in South Africa since January ?
A. 2 B. 4. C. 5. D. 8.
4._______are more likely to be robbed in South Africa.
A. Those Chinese who depend too much on local police
B. Those Chinese who live near the capital of South Africa
C. Those Chinese who open shops selling Chinese goods
D. Those Chinese who leave others the impression of being rich
高一英语阅读理解中等难度题查看答案及解析
Two Chinese living in South Africa were killed in a robbery (抢劫) on February 5, bringing the total number of Chinese killed in the country to four in less than a month.
Chen Jianqing, 35, from Southeast China's Fujian Province, who ran a shop with her husband in a small town 45 kilometers away from South African capital Johannesburg, was shot dead.
"One of her business, partners died later in the hospital," the Chinese consulate (领事馆) officials in Johannesburg said yesterday. "Local police are trying to find more information about the case. And we have told the victims' (遇难者的) relatives and are helping them come to Johannesburg,". consul Wu Gang told China Daily. Chen's husband was injured during the robbery but did not suffer seriously, said Wu.
The robbery happened at about 5:45 pm local time and the armed robbers ran away after taking more than 50,000 South African rand (US $8,200). and some jewellery, Xinhua News Agency reported.
The killing happened just three days after Chen Jingmin, a 23-year-old man from Qingdao, Shandong Province, was shot dead north outside Johannesburg by armed robbers. On January 10, a Hong Kong businessman was attacked and robbed at his home in Johannesburg and died the next day in the hospital. All these happened just in less than a month.
According to records, there were more than 40 robberies attacking Chinese in South Africa last year, in which eight were killed. More than 100,000 Chinese are doing various kinds of businesses in South Africa, according to a Chinese official in the country. An increasing number of them are becoming targets( 目标) of robbers after buying big houses or luxury cars, the official said.
1.The passage is probably ______.
A. a business story B. a scientific article
C. a newspaper report D. an official document
2.Who were killed on February 5 in a small town near Johannesburg?
A. Chen Jianqing and her husband.
B. Chen Jianqing and one of her partners.
C. Chen Jingmin and a Hong Kong businessman.
D. Chen Jingmin and one of his relatives.
3.How many Chinese were killed in South Africa since January ?
A. 2 B. 4. C. 5. D. 8.
4.______________ are more likely to be robbed in South Africa.
A. Those Chinese who depend too much on local police
B. Those Chinese who live near the capital of South Africa
C. Those Chinese who open shops selling Chinese goods
D. Those Chinese who leave others the impression of being rich
高一英语阅读理解简单题查看答案及解析