1、课时作业48.完形填空Im sitting in a quiet hotel room. Its just past noon, late July, and Im listening to the _1_ sounds of a lifeordeath struggle going on a few feet away. Theres a small fly burning out the _2_ of its short lifes energies in a fruitless attempt to _3_ through the glass window. The beating wi
2、ngs tell the moving story of the flys _4_：Try harder.But its not _5_.The crazy effort offers no hope for _6_. Ironically, the struggle is part of the _7_. It is _8_ for the fly to try hard enough to succeed in breaking through the glass. This fly is doomed. It will die there on the windowsill. Acros
3、s the room, ten steps away, the door is _9_. Ten seconds of flying time and this small creature could _10_ the outside world it seeks. With only a fraction of the effort now being _11_， it could be free of this selfcreated trap. Why doesnt the fly try another approach, something dramatically _12_？ H
4、ow did it get so _13_ in the idea that this particular route offers the most promise for success? What logic is there in continuing to seek a(n) _14_ by repeating the same failed action?There is no doubt that the approach of “keep trying hard” makes sense for the fly. Regrettably, its the same idea
5、that will eventually _15_ the fly. Trying harder isnt _16_ the solution to achieving more. It may not offer any real _17_ for getting what you want out of life. Sometimes, trying harder is the problem. If you _18_ your hopes for a breakthrough on trying harder than ever, you may _19_ your chances of
6、 success. You should try harder by trying _20_.一只苍蝇拍打着翅膀奋力撞击玻璃窗试图逃跑，却不知道十步远的地方就有一扇开着的门。不知变通的努力往往成为成功的障碍。努力，离不开智慧。1A.sweetBdesperateCmysteriousDcurious答案：B解析：根据该句中的“sounds of a lifeordeath struggle”可知，我听到了几英尺外生死搏斗的绝望的声音。B项意为“拼命的，绝望的”，故B项正确。A项意为“悦耳的”，C项意为“神秘的”，D项意为“好奇的”，都与语境不符。2A.lastBfirstCbestDworst
7、答案：A解析：根据该句中的“of its short lifes energies.window”可知，有一只小苍蝇用尽了它短暂的生命的最后精力，试图飞过玻璃窗，但没有成功。the last of sth.为固定短语，意为“最后剩下的某物”，故A项正确。3A.putBrunCseeDfly答案：D解析：根据该句中的“a small fly.through the glass window”并结合常识可知，这只小苍蝇想飞过玻璃窗。D项意为“飞”，故D项正确。4A.performanceBstrategyCcontributionDdream答案：B解析：根据“Try harder”并结合该句中的
8、“The beating wings tell the moving story of the flys”可知，“更加努力地尝试”是这只苍蝇采取的策略。B项意为“策略，行动计划”，故B项正确。A项意为“表演，表现”，C项意为“贡献”，D项意为“梦想”，都与语境不符。5A.workingBimprovingCmovingDliving答案：A解析：结合下文中的“no hope”可知，这种策略并没有什么作用。A项意为“起作用”，故A项正确。6A.pleasureBreturnCpeaceDescape答案：D解析：根据上文可知，这只苍蝇拼命地拍打着翅膀想要飞出玻璃窗；结合该句中的“The craz
9、y effort offers no hope”可知，为了逃跑而做出的疯狂的努力是没有希望的。D项意为“逃跑”，故D项正确。7A.prizeBdesignCtrapDsuccess答案：C解析：根据下文中的“it could be.trap”可知，这样的努力只不过是陷阱的一部分。C项意为“陷阱”，故C项正确。8A.irresponsibleBimpossibleCreasonableDpractical答案：B解析：根据该段第一句中的“no hope”，并结合该句和常识可知，这只苍蝇冲破玻璃成功逃出是不可能的。B项意为“不可能的”，故B项正确。9A.brightBbrokenCopenDwid
10、e答案：C解析：根据下文中的“the outside world it seeks”可知，这只苍蝇可以通过门逃出去；据此可知，门是开着的。C项意为“开着的”，故C项正确。10A.reachBfindCownDleave答案：A解析：根据该句“Ten seconds of flying time and this small creature could _10_ the outside world it seeks”可知，只要十秒钟的飞行时间，这个小生物就能到达它所寻求的外部世界。A项意为“到达”，故A项正确。11A.doneBofferedCsoughtDwasted答案：A解析：根据上文可
11、知，虽然门开着，可是这只苍蝇就是试图通过玻璃窗逃跑；结合该句中的“With only a fraction of the effort now being”可知，其实只要稍作尝试，这只苍蝇就可以从自创的陷阱中逃出。A项意为“做”，故A项正确。12A.dangerousBdemandingCdifferentDpowerful答案：C解析：根据上文可知，这只苍蝇只试图从玻璃窗中逃跑，却不尝试从开着的门中逃出；结合该句“Why doesnt the fly try another approach, something dramatically”可知，苍蝇为什么不试试另一种截然不同的方法呢？C项意
12、为“不同的”，故C项正确。13A.concernedBworriedCfrustratedDlocked答案：D解析：根据语境可知，它是如何如此执着地认为这条特定的路线最有可能成功的呢？be locked in为固定搭配，意为“陷入”，故D项正确。14A.breakthroughBexplanationCimprovementDguarantee答案：A解析：根据该句中的“by repeating the same failed action”，并结合上文叙述的这只苍蝇不知变通，一直尝试从玻璃窗中飞出去可以判断，通过重复同样的失败行动继续寻求突破，还有什么逻辑可言？A项意为“突破”，故A项正确
13、。15A.interruptBkillCencourageDpersuade答案：B解析：根据上文叙述的这只苍蝇不知变通，一直尝试从玻璃窗中飞出去，并结合该句中的“its the same idea that will eventually”可知，这种不知变通的思想最终将杀死这只苍蝇。B项意为“杀死”，故B项正确。16A.completelyBimportantlyCnecessarilyDappropriately答案：C解析：根据语境可知，更加努力并不一定是获得更多的解决方案。C项意为“必然地”，故C项正确。A项意为“完全地”；B项意为“重要地”；D项意为“适当地”。17A.experie
14、nceBpromiseCpositionDchallenge答案：B解析：根据上文可知，努力并不一定能解决问题；结合该句中的“for getting what you want out of life”可知，努力并不能保证你得到想要的东西。B项意为“承诺，保证”，故B项正确。18A.followBshiftCgetDrisk答案：D解析：根据“Sometimes, trying harder is the problem”可知，有时努力会成为一种问题；结合该句可知，该处指“冒着希望不能实现的风险去努力，你会错过成功的机会”。D项意为“使冒风险”，故D项正确。19A.missBincreaseC
15、abandonDsubstitute答案：A解析：参见上题解析。A项意为“错过”，故A项正确。20A.simplyBsoonCcleverlyDbravely答案：C解析：根据上文叙述的苍蝇不知变通，一直试图从玻璃窗中逃出，并结合该句中的“You should try harder by trying _”可知，你应该用更加聪明的方式更加努力地尝试。故C正确。.七选五Now, you may be thinking, “Oh my goodness, how do I start to get better sleep? _1_” Well, beyond avoiding the damag
16、ing and harmful impact of alcohol and caffeine on sleep, and if youre struggling with sleep at night, avoiding naps during the day, I have two pieces of advice for you.The first is regularity. Go to bed at the same time, wake up at the same time, no matter whether its the weekday or the weekend. Reg
17、ularity is the king, and it will stabilize your sleep and improve the quantity and the quality of that sleep. _2_ Your body needs to drop its core temperature by about two to three degrees Fahrenheit (华氏的) for you to initiate sleep and then to stay asleep, and its the reason you will always find it
18、easier to fall asleep in a room thats too cold than too hot. So aim for a bedroom temperature of around 65 degrees, or about 18 degrees Celsius (摄氏的). _3_ And then finally, in taking a step back, what is the mission critical statement here? Well, I think it may be this: sleep, unfortunately, is not
19、an optional luxury. _4_ It is your lifesupport system, and it is Mother Natures best effort yet at immortality (永生). And the decrease of sleep throughout industrialized nations is having a disastrous impact on our health, even the safety and the education of our children. _5_ And its fast becoming o
20、ne of the greatest public health challenges that we face in the 21st century.AIs it a good idea to stay up?BThe second is to keep the body cool.CIts a silent sleep loss disease.DSleep is a biological necessity.EWhat are your tips for good sleep?FThats going to be the best option for the sleep of mos
21、t people.GYou cant update your memory if you dont have enough sleep.睡眠缺乏正迅速成为21世纪威胁公众健康的最大挑战之一。本文就如何睡个好觉提出了两条建议。1E解析：根据空前的“how do I start to get better sleep”(我怎样才能开始睡得更好)及空后的内容，尤其是“I have two pieces of advice for you”可知，空处应是询问睡好觉的建议，故E项符合语境，承上启下。2B解析：根据本段的第一句“The first is regularity”及空处下文中的“drop it
22、s core temperature”“too cold”可知，该处应是第二条建议，故B项“第二是保持身体凉爽”符合语境。3F解析：空前一句表述卧室的温度要控制在65华氏度左右，或者大约18摄氏度，由此可知F项“那将是大多数人睡眠的最佳选择”符合语境。4D解析：空前一句表述睡眠并不是一个可选的奢侈品；又根据空后一句“It is your lifesupport system, and it is Mother Natures best effort yet at immortality (永生)”可知，D项“睡眠是一个生物必需品”与此处匹配。5C解析：空前一句表述睡眠的减少对我们的健康，甚至对
23、我们孩子的安全和教育都产生了灾难性的影响，空后一句表述它正迅速成为我们在21世纪面临的最大的公共健康挑战之一，故C项“它是一种无声的睡眠缺失疾病”承上启下，符合语境。.短文改错One day, my little brother bought an ice cream in the street, enjoying to eating it. Unexpected, he saw his friend coming towards him, so he hurriedly hid the ice creams behind him. After he greeted his friend, t
24、hey begin to talk. His friend had the dog with him. When he stopped to talk with his brother, his dog moved around. The dog was such glad to find the ice cream in my brothers hand and it began to eat it with greater pleasure. My brother felt embarrassed that he hadnt shared the ice cream for his fri
25、end, he gave the ice cream to the dog. Then he bought another two for his friend and himself.答案.书面表达假如你是李华，你校的美国交换生Steven给你发了一封邮件，请你为他推荐一门选修课(optional course)。现请你给他回复，推荐白老师的“唐诗”选修课，内容包括：1写信目的；2推荐理由。注意：1.词数100左右；2可以适当增加细节，以使行文连贯。Dear_Steven，Ive_learned_from_your_last_email_that_you_are_at_a_loss_whic
26、h_optional_course_to_choose._Mr_Bais_Tang_Poems_comes_first_on_my_recommendation_list_for_the_reasons_below.First,_Tang_poetry,_a_combination_of_rhyming_charm_and_literary_beauty,_is_the_cream_of_Chinese_classical_literature,_a_taste_of_which_will_surely_spark_your_interest_in_learning_Chinese._Plus,_Mr_Bai_has_a_special_way_to_create_a_relaxed_and_harmonious_class_atmosphere._I_assure_you_Tang_Poems_is_your_good_choice.Best_wishes.Yours，Li_Hua