Many gardeners believe that “talking” to their plants helps them grow---it turns out that they may not be crazy after all. According to the scientists from the University of Exeter, plants may keep communicating with each other through a secret “unseen” language.
For their experiment, the scientists picked a cabbage plant that is known to send out a gas when its surface is cut. In order to get video evidence of the communication, they changed the cabbage gene by adding the protein---luciderase(虫荧光素酶), which is what makes fireflies(萤火虫) glow in the dark.
When the changed cabbage plant was in full bloom, they cut a leaf off with a pair of scissors, and almost immediately, thanks to the luciderase, they could see the plant sending out “methyl jasmonate(茉莉酸甲酯)”.
While this was a known fact, what was surprising was the fact that the minute this gas began to give out, the nearby cabbage plants seemed to sense some kind of danger and started to send out a gas that they normally have to keep predators(捕食者) like caterpillars(毛虫) away.
What the scientists are not sure is whether the plants are trying to warn the other leaves or the near plants about the danger---something that will require further research However, the team, which is led by Professor Nick Smirnoff, is quite excited about the findings because this is the first time it has been proved that plants do not live a passive life, but actually move, sense and even communicate with each other.
However, before you get all concerned, they are quite sure that plants do not feel the pain when they are cut, since they do not have nerves---so go ahead and bite into that juicy carrot!What’s the best title of the passage?
| A． Plants Can Send Some Gas |
| B． Plants Can Communicate with Each Other |
| C． The “Unseen” Language of Plants |
| D． Plants Can’t Feel Pain |
What does the underlined word “they” in Paragraph 1 mean?
| A． Gardeners | B． Plants |
| C． Scientists | D． Fireflies |
When the plant sent out methyl jasmonate, which of the following statements is NOT TRUE?
| A． The nearby cabbage plants seemed to sense some kind of danger. |
| B． The nearby cabbage plants started to send out a gas. |
| C． The nearby cabbage plants tried to warn the near plants. |
| D． The nearby cabbage plants communicated through a secret language. |
According to the experiment, plants ________________.
| A． don’t live a passive life |
| B． can feel pain when they are cut |
| C． can warn the other leaves about danger |
| D． can talk with each other |
At the beginning of every year we promise ourselves we will live a healthier life, and exercise more. The year tarts with the best of intentions, but many times we are unable to keep up with very high goals. Good news is that a healthy lifestyle is achievable and it's all about making small changes that make a difference.
News on healthy lifestyles says that the key is moderation and consistency. There are so many health and well-being products out there in the market promising many things. And although many may be true, select carefully.
The basics of a healthy lifestyle is maintaining a balanced diet and doing regular exercise. By eating well, it means really to make sure you include plenty of vegetables and fruit preferably in season in your diet, avoid fried and junk foods and foods high in sugar as well as processed foods. Eating fresh homemade meals rather than ready-made meals which are high in salt and sugar is always the better option. Reducing alcohol intake, drinking plenty of water and supplementing your diet with healthy snacks like nuts and seeds.
For external care choose natural skin care products and hair care oil. Natural beauty care involves using natural moisturizers like Argan oil, Coconut oil and Sweet Almond oil. These nourish the skin far more than counter creams full of chemicals. Skin reflects what we put inside of us, so a healthy diet with plenty of greens and healthy protein will make your skin brighter.
Of course exercise is essential but the key is regular and consistent exercise. So walking three times a week for 45 minutes is much more beneficial than a binge workout once a week.Why can't we keep up with our goals according to the passage?
| A．The goals are too high to achieve. |
| B．We have a large amount of work to do. |
| C．We are naturally lazy and never do exercise. |
| D．The reason isn't given in the passage. |
It can be inferred from the passage that _______.
| A．we should think twice before choosing heath products |
| B．the key to a healthy lifestyle is getting enough sleep |
| C．food high in salt and sugar is the best choice for us |
| D．we should walk once a day for a healthy lifestyle |
What does the passage mainly talk about?
| A．How to achieve our goals. |
| B．The best way to take exercise. |
| C．How to make a difference in life. |
| D．Suggestions for a healthy lifestyle. |
Do you love running? It is a good exercise, yet many people find it boring. But what if making your morning jog a creative one? Like jumping from walls and over gaps, and ground rolls? Just like the James Bond in the movie Casino Royale？Bond jumps down from a roof to a windowsill and then runs several blocks over obstacles on the way. It is just because of Bond's wonderful performances that the sport has become popular worldwide.
Yes, that's parkour, an extreme street sport aimed at moving from one point to another as quickly as possible, getting over all the obstacles in the path using only the abilities of the human body. Parkour is considered an extreme sport. As its participants dash around a city, they may jump over fences, run up walls and even move from rooftop to rooftop.
Parkour can be just as exciting and charming as it sounds, but its participants see parkour much more than that.
Overcoming all the obstacles on the course and in life is part of the philosophy(哲理) behind parkour. This is the same as life. You must determine your destination, go straight, and jump over all the barriers as if in parkour and never fall back from them in your life, to reach the destination successfully. A parkour lover said, "I love parkour because its philosophy has become my life, my way to do everything."
Another philosophy we've learnt from parkour is freedom. It can be done by anyone, at any time, anywhere in the world. It is a kind of expression of trust in yourself that you earn energy and confidence. Which of the following is TRUE of parkour?
| A．It is a team sport. |
| B．It is a good but boring sport. |
| C．It needs special training. |
| D．It challenges human abilities. |
As its participants move around a city, ________.
| A．they can ask for help | B．they should run to extremes |
| C．they may choose to escape | D．they must learn to survive |
Which of the following is the philosophy of parkour?
| A．Determination and freedom. | B．Excitement and popularity. |
| C．Dreams and success. | D．Sports and extremes. |
What is the passage mainly about?
A. What parkour is and what it can bring us.
B. What parkour is and where can do it.
B. Why we do parkour and what we get from it.
D. When we can do parkour and how we do it well.
Dear Alcohol,
You've been around forever. I can remember all the pain you've caused for me.
Do you remember the night you almost took my father's life? I do. He loves you. Sometimes I think he loves you more than he loves me. He's addicted to you, to the way you promise to rid him of his problems only to cause more of them. You just sat back and laughed as his car went spinning through the street, crashing into two other cars. He wasn't the only one hurt by you that night.
Do you remember the night of my first high school party? You were there. My friends were intrigued by you. They treated you as if they were never going to see you again, drinking all of you that they could. I spent two hours that night helping my friends who had fallen completely. "I'm so embarrassed," they said as I held their hair back so that they could vomit (呕吐). "I'm sorry," they said when I called taxies for them, walking them out and paying the driver in advance. "This won't happen again," they said as they were sent to the hospital to have their stomachs pumped. Two 15-year-old girls slept in hospital beds that night thanks to you.
Do you remember the night when you took advantage of my 17-year-old neighbor who had to drive to pick up his sister from her dance lessons? Do you know how we all felt when he hit another car and killed the two people in the other car? He died the next morning too. His sister walked home from her dance lesson, and passed police cars and a crowd of people gathering on the sidewalk just two blocks away from the dance studio. She didn't realize her brother was in the midst of it all. She never saw him again. And it's all your fault.
I wish you'd walk out of my life forever. I don't want anything to do with you. Look at all the pain you've caused. Sure, you've made people happy too from time to time. But the damage you've caused in the lives of millions is inexcusable. Stop luring (引诱) in the people I love. Stop hurting me, please.
Sincerely,
AnonymousWhat is author's purpose in writing to alcohol?
| A．To introduce Mr. Alcohol to the readers |
| B．To describe the harm alcohol did to his family. |
| C．To show how much alcohol can hurt people. |
| D．To show the great fun that alcohol can bring to people's life. |
What did alcohol do to the author's father?
| A．It made him crash into two other cars and took his life. |
| B．It made him drink too much and he had to get his stomach pumped. |
| C．It made him kill two other people when driving. |
| D．It made him get into a car accident and badly injure himself. |
The underlined phrase "were intrigued by" is closest in meaning to ______.
| A．were familiar with | B．were interested in |
| C．were disappointed with | D．were satisfied with |
What is the tone of the article?
| A．Critical. | B．Doubtful. |
| C．Unconcerned. | D．Humorous. |
BEING an astronaut sounds cool, doesn't it? In space, they get to do some pretty amazing things, like floating in zero gravity(重力).
However, there are also plenty of things that astronauts can't do because of their weightless environment, and that's very sad. What's worse, they can't even let their sadness show – because it's impossible to cry in zero gravity.
Of course, astronauts can still produce tears. But crying is much more difficult in space, reported The Atlantic in January. Without gravity, tears don't Flow downward out of the eyes like they do here on Earth. This means that when you cry in space, your tears have nowhere to go—they just stick to your eyes.
In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. "Tears," he said, "don't fall off of your eye... They just kind of stay there."
Besides making your Vision unclear, this can also cause physical pain. Back on Earth, tears are supposed to bring comfort to the eyes. But that's not the case in space. The space environment dries out astronauts' eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. "My right eye is painful like crazy." Feustel told his teammate during the walk.
Since gravity doesn't work in space, astronauts need some extra help to get rid of the tears. Feustel chose to rub his eyes against his helmet to wipe the tears away. Another choice is to just wait—"When the tears get big enough they simply break free of the eye and float around," astronaut Ron Parise told The Atlantic.
There are lots of small things—things like crying – that we are so used to on Earth. We usually take them for granted, until they become a problem in a totally different environment, like space. There, astronauts can't talk to each other directly. They also can't eat or drink in normal ways. They can't even burp (打嗝), because there is no gravity to hold the food down in their stomach. If they do burp, they just end up throwing up (呕吐) everything in their stomach, according to the UK National Space Center.
Thus, perhaps it's only space explorers who can honestly say: "Gravity, you're the best."What can we conclude from paragraphs 2 and 3?
| A．Astronauts are unable to feel sad in space. |
| B．Astronauts produce fewer tears in space. |
| C．Tears produced in space flow down more slowly. |
| D．Tears produced in space don't flow downward. |
What effect do tears have on astronauts?
| A．They cause physical pain. |
| B．They bring comfort to them. |
| C．They make their vision clearer |
| D．They float around and cause trouble. |
What can the astronaut do to get rid of the tears?
| A．Rub his eyes against his helmet to let the tears float forward. |
| B．Rub his eyes by hand to let the tears float around. |
| C．Get the tears big enough to fall off of his eyes. |
| D．Get the tears big enough to break away from his eyes. |
When of the following can be the best title for the text?
| A．In the sky, you can't burp |
| B．Better life with gravity |
| C．In the sky, you can't cry |
| D．No Gravity, no tears |
A popular saying goes, “Sticks and stone may break my bones, but words will never hurt me.” However, that’s not really true. Words have the power to build us up or tear us down. It doesn’t matter if the words come from someone else or ourselves– the positive and negative effects are just as lasting.
We all talk to ourselves sometimes. We’re usually too embarrassed to admit it, though. But we really shouldn’t be, because more and more experts believe talking to ourselves out loud is a healthy habit.
This “self-talk” helps us motivate ourselves, remember things, solve problems, and calm ourselves down. Beware, though, that as much as 77% of self-talk tends to be negative. So in order to stay positive, we should only speak words of encouragement to ourselves. We should also be quick to give ourselves a pat on the back. The next time you finish a project, do well in a test, or finally clean your room, join me in saying, “Good job!”
Words possess power because of their lasting effects. Many of us regret something we once said. And we remember unkind words said to us! Before speaking, we should always ask ourselves: Is it true? Is it loving? Is it needed? If what we want to say doesn’t pass this test, then it’s better left unsaid.
Words possess power: both positive and negative. Those around us receive encouragement when we speak positively. We can offer hope, build self-esteem(自尊) and motive others to do their best. Negative words destroy all those things. Will we use our words to hurt or to heal? The choice is ours.The author argues in the first paragraph that ________.
| A．words will never hurt us at all |
| B．positive effects last longer than negative effects |
| C．words have lasting effects on us |
| D．negative words last longer than positive effects |
Why should we not feel embarrassed when talking to ourselves?
| A．Talking to ourselves is believed to be good for our health. |
| B．It does harm to have “self-talk” when we are alone. |
| C．Talking to ourselves helps us to solve all the problems. |
| D．Almost everybody has the habit of talking to oneself. |
The underlined phrase “give ourselves a pat on the back” in Paragraph 3 means _______.
| A．blame ourselves | B．punish ourselves |
| C．talk to ourselves | D．praise ourselves |
Which of the following statements would the author agree to?
| A．It is impossible for unkind words to be forgotten. |
| B．It is better to think twice before talking to others. |
| C．Words always possess long positive effects. |
| D．Kind words are sometimes not needed at all. |