Article: Burning less calories while walking seems like a bad idea, but making the walk easier may actually keep people on their feet longer, and that scientists say, has substantial health benefits. Analyzing the human walk, biomedical engineers Steven Collins and Greg Sawicki concluded that our ankles and calves perform motions similar to a spring coupled with a clutch that intermittently stores and releases energy. Sawicki, from the University of North Carolina, explained what's involved. "We found in basic science experiments that that system, your calf and Achilles tendon, works a lot like a catapult. So, the muscle holds on to the tendon and your body actually stretches your Achilles tendon quite a bit and then stores the energy in the tissue and then it's given back to _ you forward in the world," he said. Sawicki said he and his colleague Steven Collins at Carnegie Mellon University designed a mechanical device, made of carbon fiber and metal, that performs the same sequence of energy give-and-take outside the body. The system takes over part of the work of walking, and reduces the amount of required energy by as much as seven percent. Wearing the unpowered ankle exoskeleton can help people either walk farther with the same amount of energy, or restore the normal movement pattern for people who have trouble walking. Sawicki said it takes only a few minutes to get used to the exoskeleton but the wearer quickly learns to tone down the muscle energy as the device takes over part of the load. "You really don't notice it until when you take it off. And when you take it off you realize that it was there and giving you the boost," he said. Sawicki added that the device is primarily intended for people recovering from surgery or a stroke. But all persons who spend a lot of time walking, such as police officers or hospital personnel, could benefit from it. At the moment there are no plans to develop the ankle exoskeleton for the market, but the inventors say some manufacturers have expressed interest. Question: What's the main idea of the passage? Yes or no, is the answer "Introduction to a mechanical device to make walk easier"?
No

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Article: The so-called post-90s generation have become even much "cooler" than the 1980s group, for they can speak "Martian language", a difficult code-like language created by themselves. And they probably think it very original and smart. The idea of this language is to prevent the authorities- parents and teachers- from understanding what is said. Ms. Li, mother of a 15-year-old girl, logged onto her daughter's online space and found lines of codes, mixed English, Japanese and half-finished Chinese characters, which looked completely meaningless to her. Her daughter told her that it was "Martian language" and her _ all used it. The new language is becoming very popular in online spaces- so much so that even some translating software has been created to translate the normal language into "Martian language". A 14-year-old netizen, nicknamed "S. _ Tangguo", explained that the language could be created by anyone. "At first, I just copied the language form other people's articles. Later , I began to create some words by myself. I split some Chinese characters, or use words that have similar pronunciations to interchange with each other, or even add some English, Japanese or Korean words into my article, and that makes the new language. My classmates all chat in 'Martian language'. It's in style and can help us hide our secrets from our parents or teachers." Unlike the worried parents, some experts have found positive aspects in the spread of this unusual online language. Wang Haiyong, a psychologist ,said that there's no need to be too worried about the phenomenon. This so-called "Martian language" is just a little hobby of the post-90s generation. On the other hand, the new language can inspire children's imaginations, which is a good thing. However, Wang also advised teachers and parents to give proper guidance to their children, helping them better distinguish between online language and the normative language of real life. Question: Which of the following statements is NOT one of the ways creating "Martian language" according to the passage? Yes or no, is the answer "Mixing some completely meaningless codes together."?
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Ques: Article: Do you enjoy reading? Do you read newspapers or magazines? Chances are, if you do any of these activities, your pre-school child is on his way to becoming a reader. The process of learning to read is complex, and one of the most important things to know is that parents can help their children learn to read. As children have conversations with adults, they hear both new and familiar words and their vocabulary grows. There are many opportunities for adults and children to talk together, such as when riding in the car or in a bus, doing housework like fixing dinner, or bathing and getting ready for bed. A major part of conversation is listening. When children talk, adults listen and respond. Then children listen and respond, and so the flow of conversation happens. Have you watched you pre-school child pretend to read to his younger sisters or brothers? Have you read his favorite story over and over? These experiences tell children that reading is fun. And when things are fun and they are repeated, your child will see letters. He begins to connect them to familiar words, especially the letters that make up his name. A natural next step for him to take is to write the letters. When children see parents make a grocery list, they want to use a pencil and paper to make their own list. To encourage these beginning writing activities, have pencils, markers, crayons and scrap paper within your children's reach. The more children get connected with talking, listening, reading and writing, the easier it is for them to become active readers. While you as a parent have a big influence on these early behaviors, it is important to remember that opportunities for literacy experiences happen when you and your child share in the basic routines of everyday life. Question: When do children want to learn to write? Yes or no, is the answer "When they can connect letters with familiar words."?
Ans: Yes

Article: "Why do we have to learn this useless thing?" Of all the questions I have heard from my students during my years in the classroom, this was the one most frequently asked. I would answer it by telling them about an experience I once had. It was an experience I had with a students, who I shall call Alan, early in my teaching career. When Alan was in the eighth grade, he majored in "trouble". He had studied how to be a bully and was getting his master's degree in "thievery". Every day I had my students memorize a famous saying from a great thinker. No one complained about this daily routine more than Alan -- right up to the day he was dismissed. Then I lost touch with him for five years. Then one day, he called. He told me that after being sent to juvenile prison , he hated himself so much that he had cut his wrists with a knife. He said, "You know what? Mr. Schlatter, as I lay there with my life running out of my body, I suddenly remembered that useless saying you made me write twenty times one day. 'There is no failure except in no longer trying.' Then it suddenly made sense to me. As long as I was alive, I wasn't a failure, but if I allowed myself to die, I would most certainly die a failure. So with my remaining strength, I called for help and started a new life." At the time he had heard the saying, it as a pebble which made no sense to him. But when he needed guidance in a moment of difficulty, it had become a diamond. And so it is to you. I say, gather all the pebbles you can, and you can count on a future filled with diamonds. Question: What would be the best title? Yes or no, is the answer "Pebbles"?
No