_________ we began studying English.

What we can learn from the article.

A.George Tome is a software engineer who had become a project manager.

B.George Tome began applying agile principles as soon as he became a project manager.

C.Tome was working as a manager in a group responsible for discovering technologies that could revolutionize Deere’s offerings.

D.Tome invited two other unit managers to the Enterprise Advanced Marketing unit of the R&D group.

A.The father was more interested in the son's stories.

B.The father was jealous of his son.

C.The father no longer cared about how much money the son made.

D.There was more understanding between the father and the son.

What is the real relationship between education and economic development We have to suspect that continuing economic growth promotes the development of education even when governments don’t force it. After all, that’s how education got started. When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about anything besides finding food. Only when humanity began to get its food in a more productive way was there time for other things. The author quotes the example of our ancestorsto showthat education emerged ______. （）

A．when people had enough time

B．prior to better ways of finding food

C．when people on longer went hungry

D．as a result of pressure on government

After the World war II (27) in 1945, some Americans felt VOA's (28) had to be changed, (29) the Soviet Union (苏联)became the enemy of America. They wanted to reach Soviet listeners. Then VOA began broadcasting in Russian.

In the early years VOA began (30) something new to its broadcast that was (31) "Music USA" , Another new idea came (32) in 1959. VOA knew that many listeners did not know (33) English to completely understand its normal English broadcast. So VOA (34) a simpler kind of English, which uses about 1,500 words and is spoken (35) ,of course, it is Special English.

21.

A. business

B. culture

C. support

D. information.

What is it about a dog's gaze that makes it so charming？ A new study by Japanese scientist Miho Nagasawa seems to have found the answer, and it has to do with something called the cuddle(爱抚)chemical.

The cuddle chemical has another, more scientific name: oxytocin.Oxytocin is a substance in the blood that encourages bonding.Levels of oxytocin increase, for example, when a mother feeds her newborn baby.According to Nagasawa's study, the same is true when we look deeply into the eyes of a dog.

The results of this study can tell us a lot about the history of the bond between humans and dogs.It all started somewhere tens of thousands of years ago.Scientists believe that wolves used to follow humans who were hunting large animals.The wolves would eat the food left behind by the humans.

Humans realized that they could use the wolves to help with the hunt, and eventually both species began to work together toward survival.

Over time, the wolves that interacted with the humans began to change.They became more loyal to their human partners.The wolves and humans started to depend on each other and bond with each other.These changes are what caused some of the wolves to turn into what we now know as dogs, a new specie evolved to better survive in their environment.

This process depended a great deal on the bond humans formed with them.And according to Nagasawa's study, this bond was formed with the help of oxytocin, the cuddle chemical.

11.What do we know about oxytocin？()

A.It regulates blood flow

B.It promotes bonding

C.It is in the human gene

D.It is good for health

12.When we look deeply into a dog's eyes, the levels of our oxytocin ____.

A.reduce over time

B.go either up or down

C.are on the rise

D.remain unchanged

13.At the beginning wolves followed humans to ____.

A.eat the food left by humans

B.guard against large animals

C.take humans for food

D.hunt large animals together

14.Over time some wolves turned into dogs ____.

A.due to their loyalty

B.due to the changing environment

C.for better survival

D.for better cooperation

15.What does Nagasawa9s study aim to do？()

A.Explore the role of human-wolf partnership

B.Show the characteristics of the cuddle chemical

C.Explain the bond between humans and dogs

D.Understand the evolution of species

Doctor Ben Carson grew up in a poor single parent household in Detroit. His mother, who had only a third-grade education, worked two jobs cleaning bathrooms. To his classmates and even to his teachers, he was thought of as the dumbest kid in the class, according to his own not so fond memories. He had a terrible temper, and once threatened to kill another child. Doctor Carson was headed down a path of self-destruction until a critical moment in his youth. His mother, convinced that she had to do something dramatic to prevent him from leading a life of failure, laid down some rules. He could not watch television except for two programs a week, could not play with his friends after school until he finished his homework, and had to read two books a week and write book reports about them. His mother’s strategy worked. “Of course, I didn’t know she couldn’t read, so there I was submitting these reports.” He said. “She would put check marks on them like she had been reading them. As I began to read about scientists, economists and philosophers, I started imaging myself in their shoes. As he got in the habit of hard work, his grades began to soar. Ultimately, he received a scholarship to attend Yale University. And later, he was admitted to the University of Michigan Medical School. He is now a leading surgeon at John’s Hopkins Medical School, and he’s also the author of three books.

Q: What do we learn about Ben Carson？

A.He had only a third-grade education.

B.He once threatened to kill his teacher.

C.He grew up in a poor single-parent household.

D.He often helped his.

Passage Four

"We're more than halfway (中途) now; it's only two miles farther to the tavern (客栈) ," said the driver.

"I'm glad of that," answered the stranger, in a more sympathetic way. He meant to say more but the east wind blew clear down a man's throat if he tried to speak. The girl's voice was quite attractive; however, later he spoke again.

"You don't feel the cold so much at twenty below zero in the Western country. There isn't such damp chill (潮冷)", he said, and then it seemed as if he had blamed the uncomplaining young driver. She had not even said that it was a bad day, and he began to be conscious of a warm hopefulness of spirit, and sense of pleasant adventure under all the woolen scarves.

"You'll have a cold drive going back," he said anxiously, and put up his hand for the twentieth time to see if his coat collar was as close to the back of his neck as possible.

"I shall not have to go back!" cried the girl, with eager pleasantness. "I'm on my way home now. I drove over early just to meet you at the train. We had word that someone was coming to the tavern."

46. How far was the drive from the train to the tavern？

A. One mile.

B. About four miles.

C. Two miles.

D. Less than four miles.

NASA, the U.S. space agency, believes there's a good chance that we're not alone in the universe. Last fall, NASA began a new project called the High Resolution Microwave Survey (HRMS). Its aim: to find evidence of life in one of the billions of galaxies in the universe.

The search for intelligent life on other planets isn't new. It began almost 100 years ago. That's when scientists built a huge transmitter to send radio waves into space. Scientists thought smart beings on other planets might pick up the signals.

Scientists also have sent a message about humans and our solar system to a nearby constellation (星座 ). But because the constellation is 25,000 light years away, a return message wouldn't reach Earth for 50,000 years! So don't wait up for an answer.

So far, no extraterrestrial (地球外的 ) beings that we know of have returned our “ calls. ” But according to Dr. Jill Tarter, an HRMS scientist, we haven't exactly had our ears wide open. “ Now, however, ” says Dr. Tarter, “ we've built the tools we need to listen well.”

Last October, Dr. Tarter switched on the largest radio receiver in the world. It's an enormous metal bowl stretching 1,000 feet across a valley in Puerto Rico.

Meanwhile, another NASA scientist turned on a huge radio receiver in California's Mojave Desert. NASA hopes these big dishes-and others around the world-will pick up radio signals from new world.

Dr. Frank Drake has been searching for life in outer space for years. He explains the HRMS project this way: To listen to your radio, you move the tuner on the dial until the channels come in loud and clear: Now imagine radio receivers that scan our galaxy “listening” to 14 million channels every second. That's what NASA's radio receivers in Puerto Rico and California are doing.

But that's not all. Powerful computers hooked to the receivers examine every signal carefully. The computers try to match the signals to ones that scientists already recognize, such as human-made signals. If they can't, Drake and Tarter check on them. “It could prove there is radio technology elsewhere in the universe, ” says Dr. Tarter. “ And that would mean we're not alone. ” 26、NASA scientists started a new project in order to _______.

A、discover life in other galaxies

B、send human beings into space

C、find evidence of a new galaxy

D、confirm the number of galaxies

27、According to Dr.Jill Tarter ,the reason why we haven't received any return any return messages from outer space is that_______.

A、our ears are not sharp enough to hear them

B、our equipment hasn't been good enough

C、it takes millions of yuars for them to reach us

D、it takes quite a long time to send them

28、Dr.Jill Tarter compares the large receiver to _______.

A、the human ear

B、the universe

C、a metal bowl

D、a huge dish

29、According to Dr.Frank Drake ,NASA's radio receivers in Puerto Rico and California are _______.

A、trying to check on every channel carefully

B、moving the tuner on the dial for clear channels

C、scanning the universe for possible signals

D、picking up radio signals from new world

30、The best title of this passage is ________.

A、Signals from the Space

B、The Invention of New Radio Receivers

C、The Intelligent Life in Outer Space

D、NASA Listens for Space Neighbors

Yesterday afternoon John and I were walking along a road where we heard someone shout "Help! Help!" He was in __1__a lake, about a hundred feet from the shore. There was a __2__small boat nearby. We knew immediately what happened. __3__

He had fallen out of the boat and could not swim good enough __4__to reach it or to get to the shore. As we ran towards the lake I saw him sunk, and I was certain that he would drown. But in __5__a moment his head appeared again. Quickly John took out his __6__shoes, jumped into the water and started swimming toward the drowned man. He reached him just as the man went down __7__again. He was close enough as to stretch out his hand and try __8__to take hold of the man's clothes or his hair before he sank.But the man threw out his arms in fear, caught John across the __9__neck, and began to draw him down under the water. John fought to keep his head above the water and at the same time tried to swim toward the boat, pulled the man with him. __10__