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¡¡¡¡Many people believe the glare from snow causes snowblindness. Yet¡­ÕâÀï¸ù¾Ý±íʾתÕ۵ĹØÁª´ÊYet£¬Ô¤²âµ½ÏÂÃæ¿ÉÄܳöÏÖµÄÊÇÖ÷Ìâ¾ä£¬ÓÖ±ØȻҪ·ñ¶¨±¾¾äÖÐÐí¶àÈ˵Ĺ۵㣬¼´snowblindness£¨Ñ©Ã¤£©¿ÉÄÜÓÉglare from snowÒÔÍâµÄÆäËüÔ­ÒòÒýÆð¡£Ô­ÎĽô½Ó×ŵÄÊÇ£ºYet£¬dark glasses or not£¬they find themselves suffering from headaches and watering eyes£¬and even snowblindness£¬when exposed to several hours of ¡°snow light¡±.

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¡¡¡¡The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country. Rather£¬a man's eyes frequently find nothing to focus on in a broad expanse of barren snow-covered terrain. So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing hour after hour£¬the eyes never stop searching and the eyeballs become sore and the eye muscles ache. Nature offsets this irritation by producing more and more fluid which covers the eyeball. The fluid covers the eyeball in increasing quantity until vision blurs£¬then is obscured£¬and the result is total£¬even though temporary£¬snowblindness.

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¡¡¡¡£¨1£© ÅжÏÍƲâ¾äÖÐomnivorousÒ»´ÊµÄ´óÒâ

¡¡¡¡She has a wide interest and is an omnivorous reader.

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¡¡¡¡Laziness is a sin, everyone knows that. Nevertheless¡­

¡¡¡¡A£© laziness can actually be helpful

¡¡¡¡B£© laziness is a sign of mental illness

¡¡¡¡C£© laziness is immoral and wasteful

¡¡¡¡D£© you must be careful when you see someone lazy

¡¡¡¡¸ù¾ÝµÚÒ»·Ö¾äµÄÓïÒåÇãÏòºÍNeverthelessÒ»´Ê£¬ÎÒÃǿɵóöÕâÑùµÄÅжÏ£¬¼´ÏÂÎÄҪ̸µÄÄÚÈݱØÈ»ÓëÖ®Ïà·´£¬¼´Ì¸ÂÛLazinessÒ²ÓÐÆäÓÐÀû¡¢¿Ï¶¨µÄÒ»Ã棬¹ÊA×îÓпÉÄÜ¡£

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¡¡¡¡Which of the following statements was written by someone who prefers small cars to large ones£¿

¡¡¡¡A£© Their excellent gas mileage and even their improved interior design notwithstanding£¬today's compact cars simply fail to provide the feel a traditional motorist yearns for.

¡¡¡¡B£© They lack some of the size and even the character of the full-sized autos we were accustomed to; but today's compacts more than make up for this with their excellent gas mileage.

¡¡¡¡±¾ÌâÒªÇóÎÒÃǶÔA¡¢BÖÐÄÄÖÖ¹ÛµãÔÞ³ÉСÆû³µ×÷³öÅжÏ¡£A¾äÖÐÖ÷¾ä¶ÔСÆû³µÓèÒÔ·ñ¶¨£¬¾äÊ׶ÔСÆû³µµÄ¿Ï¶¨ÐÔ³ÂÊöÓÖ±»notwithstandingÒ»´Ê·ñ¶¨¡£´ð°¸ÊÇB£¬µÚÒ»·Ö¾ä½²µ½Ð¡Æû³µµÄȱÏÝ£ºÈ±·¦´óÆû³µµÄ¿Õ¼äºÍÆøÅÉ£»µÚ¶þ·Ö¾äÔòÈÏΪСÆû³µµÄ½ô´Õ¼°ÆäÓÅÐãµÄµÍºÄÓÍÌØÕ÷ÄÜÔ¶Ô¶ÃÖ²¹ÉÏÊö²»×㣬ǰÃæÒÔתÕÛÁ¬´Ê½«×÷Õß¹ÛµãתÏòµÚ¶þ·Ö¾ä¡£

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¡¡¡¡A£© Microwave ovens have eliminated many of the inconveniences previously associated with the preparation of meals.

¡¡¡¡B£© Many foods can go directly from the freezer to the microwave oven without being defrosted.

¡¡¡¡C£© Many microwave ovens can be pre-set to cook food while you are away from the kitchen.

¡¡¡¡D£© The microwave oven has greatly reduced the amount of time it takes to cook a meal.

¡¡¡¡ÌâÖÐËľ仰¶¼Ìᵽ΢²¨Â¯µÄºÃ´¦£¬ÆäÖÐB¡¢C¡¢D ·Ö±ð´Ó·½±ã¡¢½â¶³¡¢¶¨Ê±Èý¸ö²»Í¬µÄ·½Ãæ¾ßÌå½²Êö΢²¨Â¯²»Í¬ÓÚ´«Í³´¶¾ßµÄÓÅÊÆ£¬¶øAÔò´ÓÕûÌåÉϸ²¸ÇÁËÉÏÊöÈý¾äµÄÄÚÈÝ£¬¹ÊAÊǶÔB¡¢C¡¢DµÄ¸ÅÀ¨£¬ÉÏÊö·ÖÎö¡¢Ñ°ÕÒ×î¾ß¸ÅÀ¨ÒâÒå֮ѡÏîµÄ¹ý³Ì¼´Îª¹éÄɹý³Ì¡£Íƶø¹ãÖ®£¬ÎÒÃÇ¿ÉÓÃÖ®ÓÚ¶ÎÂäºÍ¶ÌÎÄÖ÷ÌâµÄ¹éÄÉ¡£

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¡¡¡¡Although most universities in the United States are run on a semester system, which offers classes in the fall and spring, some schools observe a quarter system comprised of fall, winter, spring, and summer quarters. The academic year, September to June, is divided into three quarters of eleven weeks each beginning in September, January, and March, the summer quarter, June to August is composed of shorter sessions of varying length. Students may take advantage of the opportunity to study year around by enrolling in all four quarters, Most students begin their programs in the fall quarter, but they may enter at the beginning of any of the other quarters.

¡¡¡¡A£© Universities in the United States

¡¡¡¡B£© The Academic Year

¡¡¡¡C£© The Quarter System

¡¡¡¡D£© The Semester System

¡¡¡¡±¾¶ÎÓÉËĸö¾ä×Ó×é³É£¬¸÷¾ä´óÒâ·Ö±ðΪ£º1£©ÓÐЩѧУʵÐÐËÄѧÆÚÖÆ£»2£©Ñ§Äê´Ó9ÔÂÖÁÏÂÄê7Ô£¬Ç°Èý¸öѧÆÚ¸÷³¤11ÖÜ£¬Ïļ¾Ñ§ÆÚ×î¶Ì£»3£©Ñ§Éú¿ÉÓÚÈκÎѧÆÚ×¢²áÈëѧ£»4£©µ«´ó¶àÊýѧÉúÇï¼¾Èëѧ¡£Í¨¹ýÉÏÊöËľä´óÒâµÄ¹éÄÉ£¬¿ÉÖª±¾¶ÎÂäÖ÷Òª½²ÊöÃÀ¹ú´óѧµÄÒ»ÖÖѧÆÚÖÆ£¬¼´Quarter System£¬´ð°¸ÎªC.

¡¡¡¡£¨3£© ¶ÌÎÄÖ÷ÌâµÄ¹éÄÉ

¡¡¡¡¢ÙProponents of father-attended childbirth assert that the father's experience encourages him to develop a closer bond with his child¡­

¡¡¡¡¢ÚAs a father of three teenagers from a previous marriage, one man compared his past experience as a new father to being in the delivery room during the birth of his newborn daughter¡­

¡¡¡¡¢Û Women report that they are much less anxious and more aware of what is going on when their husbands are with them when they give birth¡­

¡¡¡¡A£© The Father-Daughter Relationship

¡¡¡¡B£© Baby's First View of Life

¡¡¡¡C£© Dad in the Delivery Room

¡¡¡¡ÎÄÕ¹²Èý¶Î£¬·Ö±ð¸ø³öÁ˸÷¶ÎµÄÖ÷Ìâ¾ä¡£µÚÒ»¶Î̸ÔÞ³ÉÅ®×Ó·ÖÃäʱÕÉ·òÅãÔÚÆäÉí±ßµÄ¹Ûµã²¢ÈÏΪÕâÒ»¾­ÀúÓÐÀûÓÚ½«À´¸¸×Ó¹ØϵµÄ·¢Õ¹£»µÚ¶þ¶Î´ÓÄÐ×ӵĽǶÈ̸ÆÞ×Ó·ÖÃäʱÅãÔÚÆäÉí±ßµÄ¸ÐÊÜ£»µÚÈý¶ÎÔò´ÓÅ®×Ó×ÔÉíµÄ½Ç¶ÈÌáµ½·ÖÃäʱÓÐÕÉ·òÔÚÉí±ß»á¸Ðµ½Ì¤Êµ¡¢·ÅÐÄ¡£Í¨¹ý¶ÔÈý¶ÎÖ÷Ìâ¾äµÄ×ۺϸÅÀ¨£¬È«ÎĹ²Í¬ÌÖÂÛµÄÊÇ£ºÅ®×Ó·ÖÃäʱҪ²»ÒªÎ´À´µÄ¸¸Ç׺òÔÚ²ú·¿£¬Òò´Ë´ð°¸ÎªC.

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¡¡¡¡Àý£ºApart from the obvious fact that rioters tend to come from the less well-off section of the community, there is no evidence that economic circumstances have any causal relationship with street violence.

¡¡¡¡A£© There is some evidence for relating economic circumstances to street violence.

¡¡¡¡B£© Not all the people in the community referred to are poor.

¡¡¡¡C£© There is no evidence that economic circumstances result from street viloence.

¡¡¡¡D£© All rioters come from the poorer section of the community.

¡¡¡¡±¾ÀýÖУ¬Ö»ÓÐA¿ÉÓÉÔ­ÎÄÍÆÖª£¬ÆäÖÐApart fromËùÒýÊöµÄÕýÊǾ­¼Ã»·¾³Ó뱩Á¦µÄÒ»ÖÖÏà¹ØÐÔ£»C·ñ¶¨ÁËÕâÒ»Ïà¹ØÐÔ£¬¹ÊÓëÔ­ÎÄÏà㣣»DÓëÔ­¾äÖС°rioters tend to come from¡­¡±µÄÔ­Òâ²»·û£º¡°ÍùÍù¡±²»µÈÓÚ¡°×ÜÊÇ¡±£»BÔòÊÇÔ­ÎĵÚÒ»²¿·ÖµÄÖØÊö£¬²»ÊôÍÆÂÛ¡£