Scientists from China, Sweden and the United Stated have developed a high-producing rice that can reduce methane emission(甲烷排放), a major greenhouse gas blamed for global warming, from rice fields, according to a paper published on the latest issue of Nature.
By inserting a barley(大麦) gene into rice, Sun Chuanxin and his colleagues created SUSIBA2 Rice, which stores more starch(淀粉) in the section of the rice above ground, according to a paper published on the latest issue of Nature.This means the grains will have more starch while the root will exude less nutrients that will later be turned into methane by microbes(微生物) in the soil, Sun, who works with Swedish University of Agricultural Sciences, told Xinhua.
"It solves two major problems mankind faces at one time: environmental degradation and the need for increased grain output," Wang Feng, another scientist, said, adding that the rice can cut methane discharge by more than 90 percent during summer and more than half during autumn, as "the rice displays a greater emission reduction effect in high temperatures." Meanwhile, small-scale trials have also suggested an increased output: a single plant of the new breed has 300 more grains with a starch content 10 percent higher. Wang said the team is working on applications for the rice in different areas, seasons and using different farming techniques. "It's still far away from mass application, but at least we see the light of hope."
Human-induced methane, though less abundant than carbon dioxide in the air, is responsible for 20 percent of the global warming effect. Rice paddies are the largest single source of methane linked to human activity. According to the Ministry of Agriculture, China produces 209 million tons of rice in 2014, or 28 percent of the world's total of 734 million.SUSIBA2 Rice will be a major breakthrough because _______.
| A．it tastes with a barley flavor |
| B．it well balances environmental protection and grains increase |
| C．it contains more starch than the ordinary rice |
| D．it gives off less methane in summer than in winter |
What can we learn from the text?
| A．Scientists will soon grow the new rice in large areas |
| B．Human-related methane contributes most to global warming |
| C．China may contribute greatly to global warming reduction |
| D．Rice fields will be reduced all over the world |
The purpose of this writing is to ________.
| A．ask people to cut down on their dependence on rice consumption |
| B．draw people’s attention to the serious consequences of global warming |
| C．introduce a new kind of genetically-modified rice and its possible benefits |
| D．indicate human-related methane alone is to blame for global warming effects |
Valentine’s Day（情人节） was coming. Helen felt hurt and lonely because this was her first Valentine’s Day after the divorce（离婚）.
Helen’s twelve-year-old son, Jack, looked at his mother, knowing that this was a difficult time for both of them. In order to make his mother happy, he prepared a present, and handed it to her on Valentine’s Day.
It was a beautiful gift package （纸盒）. Helen couldn’t believe what was happening. She opened it and took out a lovely card and a small box.
“Now,” he said, “read the card.” It reads as follows:
“I know that this isn’t easy for you because it has been a hard year for both of us. I know that Valentine’s Day is a special day for people in love. I want you to know that I love you. I know that Valentines are supposed to get chocolate. I went to the store today to buy some for you. Luckily, I got the last piece. I told the clerk it was just perfect.”
Helen stood there for a moment and looked at her son. Her eyes sparkled in the light as tears formed in each corner. Jack knew he had done the right thing. Slowly she opened the small box, careful not to tear the paper. She would never forget the moment. She found a chocolate heart that was broken into pieces along with a note:
“I am so sorry that Dad left us, Mom. And all you were left with was a broken heart. But I just want you to know we still have each other.
Happy Valentine’s Day!
Your son,
Jack”Which of the following words can best describe Jack?
| A．Hard-working. | B．Humorous. |
| C．Brave. | D．Caring. |
Why did Jack think it was a difficult time for his mother and him?
| A．Because he hadn’t heard from his father for a long time. |
| B．Because his mother had been out of work for a long time. |
| C．Because his father left them and his mother felt hurt and lonely. |
| D．Because he had no money to buy a gift for his mother |
Which of the following wasn’t in the gift package?
| A．A card | B．A flower |
| C．A small box. | D．A chocolate heart. |
Jack wrote a card to his mother in order to ____.
| A．show his love to her |
| B．explain why he felt lonely |
| C．ask her to give him some money |
| D．express he missed his father |
Which of the following is NOT true according to the passage?
| A．Helen felt hurt and lonely when Valentine’s Day was coming. |
| B．Jack knows his mother’s feelings and prepared a present on Valentine’s Day. |
| C．Jack’s mother still loves Jack’s father. |
| D．Helen was moved by her son when she received Jack’s gift. |
Imagine your body is like the house you live in. Every day, your family creates rubbish. The rubbish builds up until it is put out for the weekly garbage collection.
Now, say you put three bags of garbage out, but because one of the collectors was away sick, only two bags are collected. You take the leftover bag inside to be put out again next week. The following week you put on another three bags, plus the leftover bag from last week. But again, only two bags are collected. Imagine this cycle is repeated over the following weeks.
This is a simple description of what happens to your body when your kidneys (肾脏) don’t work efficiently. Your body is not thoroughly emptied of waste products. Other areas of the body such as blood pressure and red blood cell production are affected and the insidious process that may lead to kidney failure begins.
It’s not uncommon for people to lose up to 90% of their kidney function before developing any symptoms. There may be no warning signs. This makes early detection (诊查) difficult.
Kidney’s main job is to remove toxins (毒素) and unwanted water from our blood. Every day our kidneys clean an average of 200 litres of blood. Kidney failure may be a gradual and silent process, going unnoticed because there is no apparent pain.
Research shows that more than 25% of the patients requiring dialysis (透析) do not see a kidney specialist before they have to do so. Some risk factors for kidney disease such as age and genetic make up are out of our control; however, some changes in lifestyle may help prevent kidney damage．Two major risk factors for kidney disease, diabetes (糖尿病) and high blood pressure, have been on the rise over the last few decades．Both conditions are chiefly affected by being overweight and not getting enough exercises, which are the potential risk factors for the kidney disease.The author gives the example of the house we live in to indicate that _______.
| A．it’s safe and harmless for our body to keep some waste |
| B．it’s important for our body to empty the waste in time every day |
| C．our body will not produce any waste if our kidneys work efficiently |
| D．it doesn’t matter much if the waste in our body is not emptied in time |
The underlined word “insidious” in the third paragraph means _______.
| A．smooth and safe | B．obvious and fast |
| C．gradual and unnoticed | D．long and painful |
We can infer that when we find some symptoms related to our kidneys, _______.
| A．the kidney failure begins |
| B．the kidneys can still work properly |
| C．we have lost about 10% of kidney function |
| D．the kidneys may have been seriously damaged |
Which of the following helps prevent kidney damage most effectively?
| A．Go to see a kidney specialist shortly before dialysis starts. |
| B．Take enough exercise and make early detection of kidney disease. |
| C．Try to keep low blood pressure and a stable lifestyle. |
| D．Go to hospital whenever you find any warning signs. |
Why do people drink too much, eat too much, smoke cigarettes or take drugs? What’s to blame for all the bad behavior? Most people would say that, while these self-destructive (自我毁灭的) acts can have many root causes, they all have one obvious thing in common: they are all examples of failures of self-control, lacking the will power to resist（抵抗） them.
According to a recent study, however, if you really think about it, something about that simple answer doesn’t quite make sense. In fact, it turns out that sometimes it’s having will power that really gets you into trouble.
Think back to the time you took your very first sip (啜饮) of beer. Disgusting, wasn’t it? When my father gave me my first taste of beer as a teenager, I wondered why anyone would voluntarily drink it. And smoking? No one enjoys their first cigarette — it tastes awful. So even though smoking, and drinking alcohol or coffee, can become temptation (诱惑) you need will power to resist, they never, ever start out that way.
Just getting past those first horrible experiences actually requires a lot of self-control. Ironically (讽刺的是), only those who can control themselves well, rather than give in to them, can ever come to someday develop a “taste” for Budweiser beer, Marlboro cigarettes, or dark-roasted Starbucks coffee. We do it for social acceptance. We force ourselves to consume alcohol, cigarettes, coffee and even illegal drugs, in order to seem experienced, grown-up, and cool.
These bad habits aren’t self-control failures — far from it. They are voluntary choices, and they are in fact self-control successes. Self-control is simply a tool to be put to some use, helpful or harmful. To live happy and productive lives, we need to develop not only our self-control, but also the wisdom to make good decisions about when and where to apply it.What do most people think causes bad behavior?
| A．Being forced by others. |
| B．Not having enough will power. |
| C．Enjoying their first experiences. |
| D．Following the examples of their friends. |
The author mentions his experience in the third paragraph to prove ____.
| A．will power helps develop bad habits sometimes |
| B．drinking beer is harmful to the health of teenagers |
| C．self-control should be developed when one is young |
| D．everyone can be challenged by different temptations |
In the last paragraph, the author stresses that ____.
| A．without self-control, no one can succeed |
| B．bad habits don’t always lead to bad results |
| C．applying self-control correctly is important |
| D．people can develop wisdom from bad behavior |
What would be the best title for the passage?
| A．My First Sip of Beer | B．Do You Have Will Power ? |
| C．Will Power Benefits Us | D．Dark Side of Self-control |
Basic Photography
This is an eight-hour course for beginners who want to learn how to use a 35mm camera. The teacher will cover such areas as kinds of film, light, and lenses(镜头). Bring your own 35mm camera to the class.
Course Charge: $150
Jan. 10, 12, 17, 19, Tues. & Thurs. 6-8p.m.
Marianne Adams is a professional photographer whose photographs appear in many magazines.
Understanding Computers
This twelve-hour course is for people who don’t know very much about computers, but who need to learn about them. You will learn what computers are, what they can and can’t do, and how to use them.
Course Charge: $75
Equipment Charge: $10
Jan. 7, 14, 21, 28, Sat. 9-12 a.m.
Joseph Saimders is a professor of computer science at New Urban University. He has over twelve years of experience in the computer field.
Stop Smoking
Do you want to stop smoking? Have you already tried to stop and failed? Now it is the time to stop smoking using the latest methods. You can stop smoking, and this twelve-hour course will help you do it.
Course Charge: $30
Jan. 4, 11, 18, 25 Mon. 4-7 p.m.
Dr.John Goode is a practicing psychologist(心理学家)who has helped hundreds of people stop smoking.
Typing
This course on weekdays is for those who want to type as well as those who want to improve their typing. You are tested in the first class and practice at one of eight different skill levels. This allows you to learn at your own speed. Each program lasts 20 hours. Bring your own paper.
Course Charge: $125
Materials Charge: $25
Two hours each evening for two weeks.
This course is taught by a number of business education teachers who have successfully taught typing courses before.The word “professional” in this advertisement most probably means “_____”
| A．spiritual | B．journalist |
| C．professor | D．experienced |
The shortest course is _____.
| A．Basic Photography | B．Understanding Computers |
| C．Stop Smoking | D．Typing |
A course which can do something good for your health will cost____.
| A．$50 | B．$30 | C．$10 | D．$125 |
In which of the courses do you have to take a test?
| A．Basic Photography | B．Understanding Computers |
| C．Typing | D．Stop Smoking |
阅读理解(共20小题，每小题2分，满分40分)
Welcome to your future life!
You get up in the morning and look into the mirror. Your face is firm and young-looking. In 2035, medical technology is better than ever. Many people your age could live to be 150, so at 40, you’re not old at all. And your parents just had an anti-aging(抗衰老的) treatment. Now, all three of you look the same age !
You say to your shirt, “Turn red.” It changes from blue to red. In 2035, “smart clothes” contain particles(粒子) much smaller than the cells in your body. The particles can be programmed to change your clothes’ color or pattern.
You walk into the kitchen. You pick up the milk, but a voice says, “You shouldn’t drink that!” Your fridge has read the chip (芯片) that contains information about the milk , and it knows the milk is old . In 2035, every article of food in the grocery store has such a chip.
It’s time to go to work. In 2035, cars drive themselves. Just tell your “smart car” where to go. On the way, you can call a friend using your jacket sleeve(袖子). Such “smart technology” is all around you.
So will all these things come true? “For new technology to succeed,” says scientist Andrew Zolli , “it has to be so much better that it replaces what we have already.” The Internet is one example --what will be the next?We can learn from the text that in the future__________.
| A．people will never get old |
| B．everyone will look the same |
| C．red will be the most popular color |
| D．clothes will be able to change their pattern |
What can be inferred from Paragraph 4?
| A．Milk will be harmful to health. |
| B．More drinks will be available for sale. |
| C．Food in the grocery store will carry electronic information. |
| D．Milk in the grocery store will stay fresh much longer. |
What is the text mainly about?
| A．Food and clothing in 2035. |
| B．Future technology in everyday life. |
| C．Medical treatments of the future. |
| D．The reason for the success of new technology. |