People love the view of old buildings in Paris, especially Notre Dame Cathedral(巴黎圣母院).
Notre Dame Cathedral is home to many
2 . A cell phone is one of the few things that we hold close to our faces all the time, and yet it could possibly explode – this is what made the recent Samsung’s Galaxy Note 7 smart phone accidents so shocking.
According to technology news website, The Verge, flawed (有瑕疵的) phone batteries might be to blame.
Even if you are not a science student, you probably know that it is common sense that the negative end and the positive end of the battery should never touch. If they do, the battery will short-circuit (短路), causing a powerful electrical reaction that can destroy the battery and cause a fire.
This is why all lithium-ion (锂离子) batteries – the kind that can be found in many of our devices (电子设备) like tablets and cameras – have a separator layer inside to stop the two ends from touching one another.
But somehow, the separators in some of the Samsung phones broke, causing explosions.
Overcharging is another problem that can make batteries heat up quickly. Fortunately, most batteries are designed to be able to automatically stop charging once they are fully charged. But again, this somehow failed to happen in some of the Samsung phones.
According to Lynden Archer, a materials scientist at Cornell University, US, we have already achieved 90 percent of the battery life possible from a lithium-ion battery. Customers’ demands that their devices get thinner and their battery have a longer life have given producers little choice but to try to put more power into thinner batteries. However, the more energy you put into a box, the more dangerous it’s going to be.
1. A separator layer is put in lithium-ion batteries in order to ______.A.ensure a longer battery life |
B.reduce a certain electrical reaction |
C.connect the anode and the cathode |
D.prevent a battery from short circuiting |
A.Pushing the limits of batteries. |
B.Short circuiting and overheating. |
C.Overcharging and thinner batteries. |
D.Automatic charging and broken separators. |
A.To describe problems facing cell phone producers. |
B.To warn us about the dangers of lithium-ion batteries. |
C.To teach us common sense when it comes to batteries. |
D.To explain the reasons for the Samsung phone explosions. |
1. What is the man?
A.A driver. | B.A policeman. | C.A witness. |
A.Mr. William Jefferson’s. | B.Mrs. William R. Crauston’s. | C.Mr. William R Crauston’s. |
A.At Caldo’s Garage. | B.At Norris’s Garage. | C.At Fulton’s Garage. |
1. What happened at First Republic Bank?
A.The man robbed the bank with a gun. |
B.A young girl was robbed and killed. |
C.The man used a cell phone to rob the bank. |
A.The winds and the tides helped them. |
B.Some local fishermen showed them the way. |
C.They followed a school of fish back to the ocean. |
A.Riders won’t be allowed to perform dangerous tricks. |
B.The show will be delayed until all the riders sign insurance forms. |
C.Medical workers will be there in case of an emergency. |
A.A rider was killed last month. |
B.A rider was badly injured last month. |
C.Some audience were involved in a violence. |
After study for hours, I went outside and up to the roof nearby for a break and watched people cwimming in the sea. It was a sunny day—a blue, cloudless sky over a calm sea. But then, as I looked in the distance. I discovered a series of three or four big waves heading towards the shore. I’d seen these mini-tsunamis (小型海啸)many times before. They were heading at speed in the direction of the swimming area. Most people knew to look out for them, but from the screams that started coming from the beach, I could tell someone was in trouble.
Without thinking, I ran down into the street, holding my bodvboard (冲浪板)on the way and shouted at a stranger to call the coastguard(海岸警卫).My neighbor Tom had heard the screaming as well and was also outside with his bodyboard, so togetlier we rushed to the steps that led down to the sea.
Once we got closer, we discovered the waves had pulled a boy and a girl into the open sea. I knew that the nearest boat would take at least 30 minutes to reach us. I wasn’t used to this sort of emergency—I’d never been trained as a lifeguard—but I didn’t think twice about trying to save them. I suppose in a way I wanted to impress everyone; at 19, a deal like that can seem like a good opportunity to show off.
Tom and I dived into the water and it took us 10 minutes to get to them. When we finally reached them, they were almost lifeless with only their heads coming in and out of the water. We could tell they were still alive from their small breaths but it was clear they wouldn't have been able to stay there much longer. I held the boy and pulled him over my board. Tom then moved the girl onto his board.
Paragraph 1:
We discussed pushing them back to the shore, but we were too far out.
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Paragraph 2:
That night, word came from the hospital that the two kids were in good condition.
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Miners have dangerous jobs because occasionally the earth sinks or falls apart. When this happens, miners are
In August 2010, 33 miners
7 . Oil is essential for modern life. About 64 percent of the world’s oil is located in the Middle East, but the heaviest consumers of oil are Europe, America, and Japan. The problem lies in getting the oil from the countries that produce it to the countries that consume it. This is mainly done using oil tankers. Usually the oil is shipped safely and with no problems, but occasionally there is a disaster.
Every year millions of tons of oil are spilled into the ocean. Although this is only a small percentage of the total amount shipped around the world each year, this spilled oil can have terrible effects on ocean life, including the coastlines where the oil washes up onto shore.
One of the worst oil spills in history occurred along the Alaskan coastline in 1989, when the Exxon Valdez tanker got stuck off the coast of Alaska, spilling 42 million liters of oil. Although it wasn’t the largest oil spill, the disaster was terrible because it occurred in such a sensitive natural area. In this spill, the tanker’s captain, who was tired from overwork and drinking alcohol, had gone to take a rest. He gave control of the ship to another sailor, who was unfamiliar with the route. The ship ran onto Bligh Reef. Damaged by the reef, the ship leaked oil out into the ocean. More than 1,600 kilometers of coastline were affected by the oil spill. Many birds and otters died as a result of the oil covering their skin, and many other sea creatures and the animals that fed on them were also severely affected.
1. Which country is NOT among the largest consumers of oil?A.Japan | B.Iraq |
C.America | D.Germany |
A.The birds. | B.The otters. |
C.The sea creatures. | D.The birds and the otters. |
A.The oil leak of Alaska is because the captain was unfamiliar with the route. |
B.Many birds and otters died from eating the spilled oil. |
C.Alaska spill was the most serious spill of all time. |
D.Although some oil leak is not serious, it will affect ocean life. |
8 . It was a cold and wet night. I had just left a local club to travel home when I lost control of my car. I crashed into a car, then hit a tree. The force was so great that it shunted(使移开) the parked car several meters forwards. I was knocked out cold. Worse still, I had no idea that a fire had started under the bonnet(引擎盖)of my car. It then set the tree on fire.
Driving in the car behind me was a young man, who I later found out was called Jared. He saw the accident occur, and stopped to help me out of the burning car. He put his own life in danger when he got into the back seat to try to undo my seat belt. This wasn’t easy because I’d hit the car on my driver’s side and my seat belt was squeezed into the console(操纵台).
With my seat belt undone, Jared then hit open the driver’s window to drag me out as I had still not regained consciousness. He bravely did this while my car and the tree were burning. Woken by the crash, the homeowners came out to investigate. Jared told them to ring emergency services. I was rushed to the Royal Adelaide Hospital in a serious condition. I eventually woke up a day later.
I owe my life to Jared and I consider him a friend due to the special bond. Jared says that although the events of that night initially shocked him, he never once hesitated to help. In addition, he doesn’t believe that he did anything special.
1. What happened to the author in the crash?A.He was knocked out of his car. | B.He was knocked unconscious. |
C.He felt cold because of bleeding. | D.He climbed on the tree to escape fire. |
A.To unfasten the author’s seat belt. | B.To get the author out of the car. |
C.To help the author drive the car safely. | D.To put out the burning fire in the car. |
A.Jared’s noble character. | B.The motivation for Jared’s behavior. |
C.Jared’s dragging him to safety. | D.His making friends with Jared. |
A.A narrow escape from death | B.A courageous crash rescue |
C.Jared, my best friend | D.A frightening car fire |
9 . A young English teacher saved the lives of 30 students when he took
Harvold, who has not
The bus driver never regained consciousness and died at Easy Surrey Hospital. He had worked regulary with the
The head of the language school told the local newspaper that the school is going to send Harvold on a weekend
A.control | B.care | C.advantage | D.note |
A.taken in | B.picked up | C.tracked down | D.helped out |
A.greet | B.thank | C.invite | D.meet |
A.present | B.introduce | C.take | D.organize |
A.drive | B.doctor | C.librarian | D.teacher |
A.given | B.marked | C.passed | D.conducted |
A.speaking to | B.waiting for | C.returning to | D.looking for |
A.learned | B.noticed | C.mentioned | D.doubted |
A.sleep | B.cry | C.move | D.recover |
A.ran over | B.went by | C.carried | D.hit |
A.remembered | B.continued | C.prepared | D.managed |
A.witnessed | B.recorded | C.praised | D.understood |
A.appeared | B.reacted | C.escaped | D.interrupted |
A.delay | B.accident | C.mistake | D.experience |
A.airport | B.hospital | C.school | D.police |
A.happy | B.fortunate | C.touched | D.sorry |
A.survive | B.retire | C.relax | D.succeed |
A.project | B.trip | C.dinner | D.duty |
A.bravery | B.skill | C.quality | D.knowledge |
A.necessary | B.easy | C.different | D.free |
A man looking at his Smartphone while walking across a railway
The Smartphone