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Mother Nature knows best. But she¡¯s not always generous with her secrets. Sometimes she only tells them to the most careful observers.

George de Mestral was a Swiss engineer who enjoyed walking with his dog in the woods. One day, after a walk, he looked down and saw some seeds(ÖÖ×Ó) stuck to his trousers. He was a little bit angry because the seeds were hard to remove. He pulled a few of the seeds off of his trousers and examined them under a microscope(ÏÔ΢¾µ). What he saw amazed him: tiny hooks(¹³×Ó) on the ends of the seeds. George de Mestral saw a new way to stick things together and keep them attached.

He was inspired to turn his accidental discovery into a useful product. He borrowed money from a bank, gave up his job, and gave all of his time and energy to the__task. At first, people refused to take him, and the idea, seriously. He took his idea to a weaving center, where he did manage to get the help of one weaver, who made two products out of cotton that worked. However, the cotton wore out quickly. Finally, by using nylon instead of cotton, he made his invention work. It took ten years to develop it. He called it Velcro.

Today, Velcro is used everywhere: in shoes, purses, and children¡¯s toys. We can thank de Mestral for discovering and developing a wonderful way to attach things. But the real thanks should go to nature for making the secret known.

¡¾½âÌâµ¼Óï¡¿ ±¾ÎÄÊÇһƪ¼ÇÐðÎÄ¡£ÎÄÕÂÖ÷Òª½éÉÜÁËÈðÊ¿¹¤³ÌʦGeorge de Mestral·¢Ã÷ά¿ÉÀÎÄáÁú´î¿ÛµÄ¹ÊÊ¡£

1£®What gave de Mestral the idea for inventing Velcro? A£®The thick woods. B£®The sticky seeds. C£®His trousers. D£®His dog.

B ½âÎö£ºÏ¸½ÚÀí½âÌâ¡£¸ù¾ÝµÚ¶þ¶ÎµÄÃèÊö¿ÉÖª£¬de MestralÉ¢Íê²½ºó·¢ÏÖ¿ã×ÓÉÏÕ³ÁËÐí¶àÖÖ×Ó£¬¶øÇÒÕâЩÖÖ×ÓºÜÄÑÇå³ýµô£¬ÕâÈÃËû¸Ðµ½ºÃÆæ£¬Òò´ËÔÚÏÔ΢¾µÏ¹۲ìÆä½á¹¹¡£Ò²ÕýÊǶÔÓÚÕâЩÖÖ×ӵĹ۲ìÈÃËûÓÐÁËÖØ´ó·¢ÏÖ²¢ÃÈÉúÁË·¢Ã÷Ò»ÖÖÓÃÀ´Õ³ºÏÎïÆ·µÄ²ÄÁϵÄÏë·¨¡£

2£®What does the underlined part ¡°the task¡± in Paragraph 3 refer to? A£®Looking for a new job.

B£®Finding a useful material.

C£®Raising enough money for his experiment. D£®Developing a product to stick things together.

D ½âÎö£ºÍÆÀíÅжÏÌâ¡£µÚÈý¶ÎÖеÄthe taskʵ¼ÊÉÏÖ¸µÄÊÇÉÏÒ»¾äÖеÄturn his accidental discovery into a useful product£¬ÓÉ´Ë¿ÉÖª´ð°¸¡£

3£®What is the best title for the text? A£®Velcro£ºAn Invention Inspired by Nature B£®Mother Nature£ºThe Perfect Designer C£®Lessons Learned from Nature D£®The Mother of Invention

A ½âÎö£º±êÌâ¹éÄÉÌâ¡£ÎÄÕÂÒÔMother Nature knows best.Òý³ö½ÓÏÂÀ´Òª½²ÊöµÄ¹ÊÊ£¬È»ºóÔÚÎÄÕµÄÖ÷Ì岿·Ö(µÚ¶þ¡¢Èý¶Î)ÏêϸÃèÊöÁËÈðÊ¿¹¤³ÌʦÊÇÈçºÎÊܵ½´ó×ÔÈ»µÄÆô·¢·¢Ã÷ÄáÁú´î¿ÛµÄ¹ÊÊ¡£×îºóÒ»¶ÎÄ©¾äBut the real thanks should go to nature for making the secret known.ÓëÎÄÕ¿ªÍ·ÐγÉÊ×βºôÓ¦£¬ËµÃ÷´ó×ÔÈ»¸øÓèÈËÀàµÄÆôʾ¡£Òò´Ë£¬AÏî×÷±êÌâ¸ÅÀ¨ÁËÎÄÕÂÖ÷Ö¼¡£

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You may get nervous at times. Maybe you¡¯re interviewing for a job or waiting to hear about a grade at school. Sometimes it is OK to let others know how you are feeling. They may be understanding and can perhaps help. 1.________Fortunately there are some ways to hide your nervousness.

2£®________ Keep in mind that for the most part£¬people don¡¯t know what is going on inside your head. Although you may be giving off some signs of nervousness, you probably don¡¯t look as nervous as you might feel. Keep in mind the ¡°spotlight effect(½¹µãЧӦ)¡±which means you may think others pay more attention to you than they really do, simply because you¡¯re seeing the world from your angle£¬so it can seem like it is all about you sometimes.

Look at the person directly. If you are talking to someone, look at him.3.________There doesn¡¯t often have to be direct eye communication, but you will look less nervous and more confident if you look at whoever you are speaking to. Avoiding looking at someone is an obvious sign of being nervous.

Keep your body still. Another sign of nervousness is rocking(Ò¡»Î) back and forth. Try to be focused and stay as still as possible, 4.________Another way to avoid rocking, is to stand up; it is more difficult to rock when your body is in a right position.

Avoid biting your nails. People who bite their nails look nervous. Perhaps you feel that you need something for your mouth to do in order to release some nervous energy.5.________Do this gently£»otherwise too much chewing will make you look just as nervous as when you are biting your nails.

A£®Take a deep breath outside.

B£®Imagine yourself as an unmovable tree. C£®Don¡¯t look past him, or look at your shoes. D£®If so, try chewing a piece of gum instead. E£®Realize you don¡¯t look as nervous as you feel.

F£®However, you don¡¯t want others to know that you are nervous at other times.

G£®Regular physical exercise can help improve your mood and make you feel more relaxed. ¡¾½âÌâµ¼Óï¡¿ ±¾ÎÄÖ÷Òª½éÉÜÁËÈçºÎÈÃÄã´ÓÍâ±íÉÏÑÚÊνôÕŵöС·½·¨¡£

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2£®E ½âÎö£º¸ù¾Ý±¾¶ÎÄÚÈÝ£¬ÌرðÊÇKeep in mind the¡°spotlight effect(½¹µãЧӦ)¡±which means you may think others pay more attention to you than they really do.¿ÉÖª£¬±¾¶ÎÊÇ˵Äã¿´ÆðÀ´¸ù±¾²»ÏñÄã¸Ð¾õµÄÄÇô½ôÕÅ£¬ÕâÖ»Êǽ¹µãЧӦ·Å´óÁËÄãµÄ½ôÕÅ¡£

3£®C ½âÎö£º¸ù¾Ý±¾¿ÕǰµÄIf you are talking to someone£¬look at him.¿ÉÖª£¬Óë±ðÈË̸»°Ê±£¬ÒªÖ±ÊÓËû£¬¶ø²»Òª°ÑÄ¿¹â´ÓËûµÄÁ³ÉÏÌø¹ý»òµÍÍ·¿´Ð¬×Ó¡£

4£®B ½âÎö£º¸ù¾Ý±¾¿ÕǰµÄTry to be focused and stay as still as possible¿ÉÖª£¬ÓëÈ˽»Ì¸Ê±ÉíÌå²»Òª×óÓÒÒ¡»Î£¬Òª±£³Ö¾²Ö¹×´Ì¬£¬°Ñ×Ô¼ºÏëÏó³ÉÒ»¿Ã²»»áÒÆ¶¯µÄÊ÷£¬´Ë´¦ÊǽéÉÜÔÚÓëÈ˽»Ì¸Ê±£¬ÈçºÎ±ÜÃâ×Ô¼ºµÄÉíÌå×óÓÒÒ¡»Î¡£

5£®D ½âÎö£º¸ù¾Ý±¾¿ÕǰµÄPerhaps you feel that you need something for your mouth to do in order to release some nervous energy.¿ÉÖª£¬´Ë´¦²¹³ä˵Ã÷£¬ÊÇ˵Èç¹ûÄã¾õµÃ×Ô¼ºÐèÒªÓÃ×ì×öһЩ¶¯×÷À´ÊͷŽôÕÅ£¬Äã¿ÉÒÔ½ÀһƬ¿ÚÏãÌÇ¡£

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