Many people watched the lift-off of the space shuttle Columbia on March 21, 1982. But none watched more closely than eighteen-year-old Ted, as Ted's insects were on board the shuttle. The Shuttle Student Involvement Program invited students to make a science experiment. The experiment would be done by astronauts on the space shuttle. Ted had always been interested in space and flight. Insect flight especially interested him. Ted noticed that insects need gravity to take off and land. They need gravity to fly in a straight line. But in space, there is no gravity. Could insects fly in zero gravity? That is what Ted wanted to find out. Ted made an experiment called "Insect in Flight Motion Study". He entered his experiment and soon news came that _ . A large team of scientists and engineers helped Ted get his experiment ready to fly. There were many questions to be answered first. What kind of insects would Ted use in his experiment? The insects would have to be strong enough to live on the shuttle for nine days without much food. What kind of container would hold the insects? Would the insects die during the shuttle flight? After months of hard work, the "insectronauts" were chosen. A group of moths, flies, and honeybees were put into a special box and put onto the space shuttle. When Columbia flew into space, it was carrying insect passengers. On March 24, astronauts Gordon Fullerton and Jack Lousma took out the box that held the insects. They began filming the insects with a special video camera. When the space shuttle landed Ted was able to watch the video film of insects. Just as he thought, most of the insects did have trouble flying in zero gravity. The flies did well. But the moths' flight seemed "uncontrolled". They would often just hang in the air. The bees had the most trouble. They couldn't fly at all! The film showed bees spinning around in all directions. Others were just floating about in the box. Ted learned the answer to his question about insects' flight in zero gravity. But he also learned a... Of the three kinds of insects sent into space, which one flew worst in zero gravity? A) The flies. B) The honeybees. C) The insects. D) The moths.
B
(Question)
Games are a good form of teaching or training children as they combine fun with knowledge. They make the teaching or training activities more interesting. They are useful in all fields of teaching and training. Help your child discover just how much more is going on in the world around them with this listening game. It will also provide a few minutes of peace and quiet in what is probably a very noisy and busy day. A discussion of the sounds you each hear will also assist in language development and an ability to articulate that which was heard. The sit-and-listen game is especially helpful if your child is at the stage of developing language skills: listening, speaking and so on. Method: This is a very relaxing activity in which you both need to sit still and silent for about 30 seconds and just listen to the world around you. You are both trying to hear as many different things as you can, whether they are cars, people, airplanes, water running, the wind in the trees or any other kinds of daily sounds. After the given time is up, having a chat about what you both could hear. It is a good idea to ask your little one some open ended questions to promote their language development, such as: "What were the loudest sounds you heard?" "What were the closest sounds you heard?" "How many cars did you hear?" "How far away do you think that barking dog might live?" "What sounds did you hear which you did not expect to hear?" Note: As an extension activity you may wish to draw a picture of all the things you could hear. The sit-and-listen game is intended to develop _ . A) your child's curiosity B) your child's imagination C) your child's patience D) your child's language ability
(Answer)
D
Ques: The New York Philharmonic came to an unexpected stop on Tuesday night when an audience member's cell phone started ringing and wouldn't stop. Conductor Alan Gilbert was nearing the end of Mahler's Ninth Symphony when the interruption began. As eh New York Times writes, the symphony, "contains some of the most spiritual and peaceful music ever written." As the cell phone continued to ring, the iPhone's signature ringtone, Gilbert stopped the entire performance. And yet shockingly the phone continued to ring. "Nothing happened," Gilbert told the Times, "Nobody was to blame for it. It was unbelievable." Gilbert said minor cell phone interruptions have become common and rarely _ a live performance. The Philharmonic does what it can to remind to audience to turn off their cell phones before the performance begins. But the audience and performers stood by in astonished silence as Gilbert asked the offender to silence the phone, only to hear it continue. Mr Gilbert said audience pointed out two people sitting where the sound was coming from. "They were staring at me firmly," he said of the couple. Eventually, the man put his hand in his pocket and the ringing stopped. The conductor said he asked the man if he was sure the phone was quieted. "Then he nodded his head," Mr Gilbert said. People in the hall had been shouting for the sound to stop. Mr Pelkonen reported that they yelled: "Thousand-dollar fine!" "Kick him out!" "Get out!" Once the phone was finally silenced, Gilbert apologized to the audience. They responded with cheers and applause . And the performance continued. What do we know about the offender? A) He silenced the phone the moment he was reminded to. B) He enjoyed the ringtone so he kept the phone ringing. C) He quieted the phone after hearing people's angry shouts. D) He didn't like the music so he wouldn't silence the phone.
Ans: C
For many of us, a little time with our smartphones or iPads before sleep is the highlight of the night. But would you still think it is relaxing if you knew that it damages or destroys your sleep? Scientists say that's exactly what it does. In ancient times, when there were no lamps, telephones or smartphones, the sun was the main source of light. When the sun went down, our brains took that as a signal to start producing melatonin , a chemical that helps us sleep. However, a healthy amount of melatonin can only be produced in complete darkness.Any light in your bedroom--even the one on the alarm clock or the charging indicator on your cellphone--could disturb the process, not to mention something as bright as smartphone and iPad screens. We tend to hold these much closer than a television or laptop, which allows them to shoot far more light straight into our eyes. "This is particularly worrisome in populations such as young adults and adolescents, who already tend to be _ ," said researcher Brittany Wood at Rensselaer Polytechnic Institute."Lack of sleep among teens is leading to depression, selfharm, low concentration and poor performance at school," she added. While all lights are the enemy of sleep, not all colors of light have the same effect. Our eyes are particularly sensitive to blue light, which is common during the day. Most of the light coming from electronic screens is blue light and it fools our brain into thinking it's still daytime. By contrast, orange or red light has less influence on melatonin production, because our brains recognize it as a signal that the day is ending, according to The Telegraph. Asking yourself to keep your hands off your smartphone before bedtime might seem unreasonable, but you should at least remember to dim the screen or hold it farther away from your eyes. You could also wear a pair of orange sunglasses that take away the harmful blue light. In the writer's opinion, which is a correct suggestion? A) You should go to bed when the sun goes down. B) You should use an orange or red light electronic screen. C) You should wear a pair of blue sunglasses when sleeping. D) You should avoid blue light as possible as you can before bedtime.
D