Scientists have not come close to understanding all the different kinds of life on the planet, but US researcher Craig Venter is already working on creating the first artificial life.
Venter and his researchers made a breakthrough this August. They successfully moved the DNA of one type of bacteria(细菌) to a yeast(酵母) cell, changed it, then put it into another bacterial cell.
“Bacteria have systems that protect them from foreign DNA,” Venter explained to the BBC. In the experiment, the team managed to block this system.
The experiment was performed on a simple type of bacteria called Mycoplasma mycoides. The team took the bacteria’s genes and put them into a yeast cell.
Putting the DNA in a yeast cell allowed the team to change the genes----in this case, taking out a gene that was not necessary for the bacteria to live.
They then put the gene into a host bacteria cell. The cell went on to divide normally, producing new healthy bacteria.
In January, the team created artificial genes of a new type of bacteria. Their next goal is to put the artificial DNA into a host cell to create a new species, according to a report in Science magazine.
“If we don’t make any errors, I think it should work and we should have the first artificial species by the end of the year,” Venter said in the report.
The first artificial life from is likely to be a simple man-made bacteria, to prove that the technology can work. But that form will be followed by more complex bacteria that turn coal into cleaner natural gas, or algae that can take in carbon dioxide and change it into fuel.
Many scientists think it’s good news to have this artificial life, but others are worried that the technology to create new organisms might end up in the wrong hands, with dangerous results.Craig Venter and his team are working to ______.
| A．create a new animal |
| B．clone a new species |
| C．produce the first artificial bacteria |
| D．develop a new system |
Which of the following is the right order of the experiment?
a. A gene was removed and put into a host bacteria cell.
b. The genes were put into a yeast cell.
c. The cell produced new healthy bacteria.
d. The genes were changed.
e. Some genes were taken out of Mycoplasma mycoides.
| A．d-e-a-c-b | B．e-b-d-a-c |
| C．a-d-e-c-b | D．b-e-d-c-a |
According to the passage, complex artificial bacteria, which will follow the first simple man-made bacteria, are intended to ______.
| A．cure deadly diseases |
| B．prepare the Earth for natural disasters |
| C．prove that the technology can work |
| D．improve the earth’s environment |
We can learn from the passage that ______.
| A．Venter and his team are the only scientists trying to create artificial life |
| B．The experiment was based on research into different kinds of life on Earth |
| C．A new type of bacteria was created in January |
| D．All scientists are not in favor of the research |
CHICAGO ---- For working parents and heavily scheduled school kids, family mealtime is out of fashion. But supermarkets are trying to attract families back to the dinner table.
There is a cost if family members have meals apart: research shows that teenagers who don’t eat with their parents face a greater risk of drug and alcohol problems.
“The more often kids have dinner with their parents, the less likely they are to smoke, drink or use drugs,” said Joseph Califano Jr., head of the National Center on Addiction and Substance Abuse, which did the research.
Stores are familiar with the idea and will start telling shoppers about the findings and encouraging them to share meals together at home, instead of separately or at restaurants.
The food marketing Institute will give $25,000 to the center and help stores promote the center’s Family Day in September.
Many stores have grab-and-go dinners and recipe cards. Some have kiosks where people can taste a main dish, then pick out side dishes.
“Our members have worked hard to try to have easily prepared food either ready to eat or ready to take home,” said Tim Hammonds, the institute’s president and chief executive.
Los Angeles-based Contessa Premium Foods makes frozen delicious meals, which a family can heat in 10 minutes to 12 minutes. “That’s nearly as fast as a TV dinner,” said president and chief executive John Z. Blazevich, “but is healthier and makes people feel like they actually cooked.”
“The preparation is the hardest part, so we try to combine a variety of tastes and flavours from around the world and make it fast and easy,” he said.
“Eating at home helps keep meals healthy and teaches kids how to eat right. If we can get people back to having family dinners, parents back to being engaged with their kids, it will have a surprising impact,” he said.The reasons why family mealtime is out of fashion are the following EXCEPT __________.
| A．the parents are busy with work |
| B．the children have a little spare time |
| C．the children are not fond of family meal |
| D．it will take much time to cook and eat at home |
The underlined word “cost” in paragraph 2 can be explained as ___________.
| A．gains | B．a sum of money |
| C．advantage | D．something you lose |
According to the passage, stores are trying to attract families back to the dinner table by the following ways EXCEPT ________.
| A．telling the parents the disadvantages of having dinner separately. |
| B．offering various prepared food to make family cooking fast and easy. |
| C．taking part in Family Day activities in September. |
| D．helping housewives prepare their meals at home. |
What is the passage mainly about?
| A．The efforts that are being made to get people back to having family dinners |
| B．The benefits of having family dinners together. |
| C．The changes in American family dinners. |
| D．A research done by the National Center on Addiction and Substance Abuse. |
What would be the best title for the passage?
| A．Family Mealtime is out of Fashion |
| B．Family Day is Promoted in September |
| C．Parents should Cook Meals for Kids |
| D．Supermarkets Urges Families to Dinner Table |
首先请阅读下列警方通报查找人员的信息：
 A. Name: Ziggy Nizott Height: 1.82 m Weight: 90kg Age: 35 Details: Long history of violent crime including robbery, assault and car theft. |
 B. Name: Dennis Tsokas Height: 1.95 m Weight: 70 kg Age: 28 Details: Well known to local police having been arrested several times for pick-pocketing. |
 C. Name: Michael Clarke Height: 1.7 m Weight: 65 kg Age: 20 Details: Arrested as a youth for car theft and the selling of stolen goods. |
 D. Name: Mark Hughes Height: 1.6 m Weight: 60kg Age: 29 Details: Is wanted by police for several armed robbery of grocery stores, banks and post offices. |
 E. Name: Herb Elliot Height: 1.6 m Weight: 90kg Age: 22 Details: Recently released from prison where he served 2 years for selling stolen goods. |
 F. Name: William Daniels Height: 1.6 m Weight: 90kg Age: 32 Details: Arrested 4 times for the selling of drugs and car theft. |
以下是相关事件及人物的描述，请把描述与相关插图及提示性文字匹配起来。A valuable dog was taken while being walked by its owner in City Park yesterday afternoon. Police wish to talk to a man seen nearby at the time, described by witnesses as short and fat with short light hair and clear glasses.
Yesterday morning at 9.30a.m. a man armed with a gun entered the National Bank and demanded money from the staff, before fleeing when confronted by bank security staff. Security cameras show the man as being short and thin with shoulder length blonde hair.
A tall, strong built man with blonde hair, a thick black moustache and wearing dark glasses knocked a woman to the ground and stole her purse on Main Street last Saturday afternoon. If you see this man, do not approach as he is considered extremely dangerous.
At the football match between Manchester United and Liverpool, several people had their wallets stolen while waiting in line to buy food. The victims did not see or notice the thief but bystanders describe him as very tall and thin, clean shaven with short light hair.
A car was stolen from the supermarket carpark on Friday, June 23 this year by a man described as very young, 1.7 metres tall with thin dark hair and carrying a blue backpack. A reward of $500 is offered for the car’s recovery.
Kincaid looked at his watch: eight-seventeen. The truck started on the second try, and he backed out, shifted gears, and moved slowly down the alley under hazy sun. Through the streets of Bellingham he went, heading south on Washington 11, running along the coast of Puget Sound for a few miles, then following the highway as it swung east a little before meeting U.S Route 20.
Turning into the sun, he began the long, winding drive through the Cascades. He liked this country and felt unpressed stopping now and then to make notes about interesting possibilities for future expeditions or to shoot what he called “memory snapshots.” The purpose of these causal photographs was to remind him of places he might want to visit again and approach more seriously. In later afternoon he turned north at Spokane, picking up U.S Route 2, which would take him halfway across the northern United States to Duluth, Minnesota.
He wished for the thousandth time in his life that he had a dog, a golden retriever, maybe, for travels like this and to keep him company at home. But he was frequently away; overseas much of the time and it would not be fair to the animal. Still, he thought about it anyway. In a few years he would be getting too old for the hard fieldwork. “I must get a dog then.” He said to himself.
Drives like this always put him into a sentimental mood. The dog was part of it. Robert Kincaid was alone as it’s possible to be – an only child, parents both dead, distant relatives who had lost track of him and he of them, no close friends.
He thought about Marian. She had left him nine years ago after five years of marriage. He was fifty–two now, that would make her just under forty. Marian had dreams of becoming a musician, a folksinger. She knew all of the Weavers’ songs and sang them pretty well in the coffeehouse of Seattle. When he was home in the old days, he drove her to the shows and sat in the audience while she sang.
His long absences – two or three months sometimes – were hard on the marriage. He knew that. She was aware of what he did when they decided to get married, and both of them had a vague (not clear) sense that it could all be handled somehow. It couldn’t when he came from photographing a story in Iceland and, she was gone. The note read, “Robert, it didn’t work out, I left you the Harmony guitar. Stay in touch.”
He didn’t stay in touch. Neither did she. He signed the divorce papers when they arrived a year later and caught a plane for Australia the next day. She had asked for nothing except her freedom.Which route is the right one taken by Kincaid?
| A．Bellingham – Washington 11 – Puget Sound – U.S Route 20 – U.S Route 2 – Duluth |
| B．U.S. Route 2 – Bellingham – Washington 11 – Puget Sound – U.S Route 20 – Duluth |
| C．U.S. Route 2 – U.S Route 20 – Duluth – Bellingham – Washington 11 |
| D．Bellingham – Washington 11 –U.S. Route 2 –U.S Route 20 –Duluth |
Which statement is true according to the passage?
| A．Kincaid’s parents were dead and he only kept in touch with some distant relatives. |
| B．Kincaid would have had a dog if he hadn’t been away from home too much. |
| C．Kincaid used to have a golden retriever. |
| D．Kincaid needed a dog in doing his hard fieldwork. |
Why did Kincaid stop to take photos while driving?
| A．To write “memory snapshots”. |
| B．To remind himself of places he might want to visit again. |
| C．To avoid forgetting the way back. |
| D．To shoot beautiful scenery along the road. |
What can you know about Marian?
“Tear’ em apart!” “Kill the fool!” “Murder the referee (裁判)!”
These are common remarks one may hear at various sporting events. At the time they are made, they may seem innocent enough. But let’s not kid ourselves. They have been known to influence behavior in such a way as to lead to real bloodshed. Volumes have been written about the way words affect us. It has been shown that words having certain connotations (含义) may cause us to react in ways quite foreign to what we consider to be our usual humanistic behavior. I see the term “opponent” as one of those words. Perhaps the time has come to delete it from sports terms.
The dictionary meaning of the term “opponent” is “adversary” “enemy”; “one who opposes your interests.” Thus, when a player meets an opponent, he or she may tend to treat that opponent as an enemy. At such times, winning may dominate one’s intellect, and every action, no matter how gross, may be considered justifiable. I recall an incident in a handball game when a referee refused a player’s request for a time out for a glove change because he did not consider them wet enough. The player proceeded to rub his gloves across his wet T-shirt and then exclaimed. “Are they wet enough now?”
In the heat of battle, players have been observed to throw themselves across the court without considering the consequences that such a move might have on anyone in their way. I have also witnessed a player reacting to his opponent’s international and illegal blocking by deliberately hitting him with the ball as hard as he could during the course of play. Off the court, they are good friends. Does that make any sense? It certainly gives proof of a court attitude which departs from normal behavior.
Therefore, I believe it is time we elevated (提升) the game to the level where it belongs there by setting an example to the rest of the sporting world. Replacing the term “opponent” with “associate” could be an ideal way to start.
The dictionary meaning of the term “associate” is “colleague”; “friend”; “companion.” Reflect a moment! You may soon see and possibly feel the difference in your reaction to the term “associate” rather than “opponent.”Which of the following statements best expresses the author’s view?
| A．Aggressive behavior in sports can have serious consequences. |
| B．The words people use can influence their behavior. |
| C．Unpleasant words in sports are often used by foreign athletes. |
| D．Unfair judgments by referees will lead to violence on the sports field. |
Harsh words are spoken during games because the players ________.
| A．are too eager to win |
| B．are usually short-tempered and easily offended |
| C．cannot afford to be polite in fierce competition |
| D．treat their rivals as enemies |
What did the handball player do when he was not allowed a time out to change his gloves?
| A．He refused to continue the game. |
| B．He angrily hit the referee with a ball. |
| C．He claimed that the referee was unfair. |
| D．He wet his gloves by rubbing them across his T-shirt. |
According to the passage, players, in a game, may ________.
| A．deliberately throw the ball at anyone illegally blocking their way |
| B．keep on screaming and shouting throughout the game |
| C．lie down on the ground as an act of protest |
| D．kick the ball across the court with force |
The author hopes to have the current situation in sports improved by ________.
| A．calling on players to use clean language on the court |
| B．raising the referee’s sense of responsibility |
| C．changing the attitude of players on the sports field |
| D．regulating the relationship between players and referees |
Our world natural park is one of the most famous parks in the world. Millions of visitors from different countries visit this park each year. In order to protect it, please do as follows:
◆Protect the natural and cultural heritage. Don’t damage or deface any buildings, displays and other facilities. Take care of all plants. Put rubbish in the bins provided.
◆Take care when you are going up and down steps or stairs and when you are walking nearby the waters.
◆Please buy tickets before entering the scenic spot. One ticket is only for one person.
Adult：＄60 per ticket.
Children over 6 and under 18: half price.
People over 60 and children under 6: free.
◆If you are going into the wooded and hilly lands，for your own safety，please go with three people at least and don’t take any tinder(易燃物）along with you. The hill is steep, so please take care of yourself.
◆This scenic spot is the reserve of water source: No fishing，swimming，washing and any behaviors that are harmful to the water source. Meanwhile, please follow the management rules of the scenic spot conscientiously.
◆Opening time：
From Monday to Friday: 8:00 a. m.～18:00 p.m.
From Saturday to Sunday: 6:00 a. m. ～24:00 p. m.
◆Small animals such as rabbits，peacocks，squirrels，frogs must be taken care of. None of them shall be killed.
If you have any trouble in visiting our world natural park, please call 477-866-7044．
Our staff will do our best to help you.How much will be paid for a 65-year-old man with his 8-year-old grandson?
| A．＄30. | B．Free. | C．＄60. | D．＄120. |
On weekends，the opening time ishours longer than weekdays.
| A．4 | B．6 | C．10 | D．8 |
Which of the following can you do in the natural park?
| A．taking some tinder | B．hiking |
| C．damaging some facilities | D．littering |
Which of the following is TRUE according to the passage？
| A．Tourists can have a swim in the water. |
| B．Tourists can hike alone in the hilly lands. |
| C．Small animals are under protection in the park. |
| D．Children can play with small animals and take some away. |