1、高二选修二七选五专项练习一1七选五How to Succeed in ScienceTo succeed in science, you need a lot more than luck. In my view, you have to combine intelligence with a willingness not to follow conventions when they block your forward path. Thus, these have come to be my rules for success._1_That might sound proud, but
2、 the fact is that you must always turn to people who are brighter than you. Its like playing any game. Even as a child, I never wanted to play games with anyone who was as bad as I was. If you win, it gives you no pleasure. And in the game of science or life, the highest goal isnt simply to win; its
3、 to win at something really difficult._2_Take risks.To make a huge success, a scientist has to be prepared to get into deep trouble. If you are going to make a huge jump in science, you will very likely be unqualified to succeed by definition. _3_ This can be more than personally upsetting.Never do
4、anything that bores you.My experience in science is that someone is always telling you to do things, and then leaves you alone. Im not good enough to do well in something I dislike. _4_Its very hard to succeed if you dont want to be with other scientists, because you have to go to key meetings where
5、 you spot key facts that would have escaped you. And you have to chat with your competitors, even if you find them objectionable.So my final rule is : _5_A. Meet challenges with great courage.BIf you cant stand being with your real peers, get out of science.CPut another way, its to go somewhere beyo
6、nd your ability and come out on top.DBe sure you always have someone to save you from a deep mess.EAvoid foolish people.FIn fact, I find it hard to do well in something I like.GBesides, you even have to be prepared to disbelieve your scientific heroes.2七选五 _1_ It is something youre so looking forwar
7、d to after a tiring week at work. There are so many things to do during weekends to help you either relax or get energetic for the week ahead. Here are some tips on how to make the most of your weekends.Dont oversleep. We all need that beauty sleep，but dont overdo it. Otherwise youll feel exhausted
8、and badtempered on Monday morning. Make it a habit to always wake up at the same time every day. Include naps in your weekend routine as well，whether its for 10 minutes or 45.Why? _2_ Spend time with your loved ones. Reconnect with family members or friends you ignored lately. Dont do it out of guil
9、t or because you have to. Do it because you want to. Reach out to them to see what they are doing. Dont call them only when you need them. Return their calls. Talk to them. Listen to them. Be there for them._3_ _4_ Stay away from TV，iPad，iPhone and any other electronic devices. Why not read a book i
10、nstead? A paper one. Seriously，when was the last time you did that?Take time for your meals. Theres no rush to go to the next meeting or finish that presentation by the end of the day. Youre not on schedule._5_ Enjoy it. Simply be in that moment with your loved ones without putting your mind in over
11、drive again.A. Spend time outdoors.BFeel the taste and smell of what youre eating.CApply the “No Technology” rule.DYou can be grateful for so many little things.EThe importance of human connection is vital for your wellbeing.FBecause naps help get rid of negative emotions and increase your abilities
12、 to learn.GThe weekend finally came.3七选五How to Start a BusinessUnemployment rate is so high in present society that many young people are thinking about starting their own business. However，setting up on your own will by no means be easy._1_ .Make a business planIf you decide to start a business，the
13、 first thing you must do is to draw up a realistic business planthis is a working document that describes the business，its objectives，its financial forecasts and so on._2_ . _3_ Once you have a detailed business plan and enough evidence to believe that your idea is viable (可行的)，it is time to go and
14、see the bank manager. It is important to shop around to find which bank offers the best deal and who you feel most comfortable with. Make sure what youre getting is right for you and your business.Develop a survival strategy _4_One of the biggest stumbling blocks to people starting a business can be
15、 understanding all the legislation. That can be tax，employment，trade，health and safety or environment. It can be confusing if you have never run your own business.Get yourself noticedIn order to make your business a success，you must ensure that consumers know it exists._5_For example，if you are runn
16、ing a local plumbing company，then delivering leaflets in your area would be the best option.ASo it is really important to make a business planBThe tips below may help you to start a businessCA bank would not consider lending money unless you show a detailed business planDBe sure to attract much atte
17、ntionEChoosing how to advertise depends on the type of the businessFGet access to financeGMake sure you are running your business correctly by the law4七选五Trees around us are extremely important and have always been necessary for improving the human conditions. Our existing forests and trees we plant
18、 work to make a better world._1_Here is a short list of main reasons trees are necessary for improving our living conditions.Trees produce oxygen _2_A leafy tree produces as much oxygen in a season as 10 people inhale in a year. What many people dont realize is that the forest also acts as a giant f
19、ilter that cleans the air we breathe. Trees help clean the air by preventing airborne particles，reducing heat，and absorbing such pollutants.Trees clean the soilThe term premedication is a fancy word for the absorption of dangerous chemicals and other pollutants that have entered the soil._3_Trees fi
20、lter(过滤) sewage and farm chemicals，reduce the effects of animal wastes，clean roadside spills and so on.Trees are carbon sinksTo produce its food，a tree absorbs and locks away carbon dioxide in the wood，roots and leaves. Carbon dioxide is a global warming suspect._4_This lockingup process “stores” ca
21、rbon as wood and not as a “greenhouse” gas._5_ Trees block urban noise almost as effectively as stone walls. Trees，planted at strategic points in a neighborhood or around your house，can reduce major noises from freeways and airports.AWe could not exist as we do if there were no treesBTrees help clea
22、n the skyCA forest is a carbon storage area that can lock up as much carbon as it producesDTrees control noise pollutionEMan has been planting trees to make the planet a more beautiful worldFThe modern human community has other more practical reasons to admire and honor treesGTrees can either store
23、harmful pollutants or change the pollutants into less harmful forms5七选五Rock music consists of many different styles. Even though there is a common spirit among all music groups，they make very different music._1_ At that time the Beatles entered the world of music from Liverpool.After they were given
24、 an invitation to appear live on BBC，the Beatles quickly became famous in Britain with nationwide tours. By mid1963，the Beatles had been extremely popular in England._2_ They held large concerts and performed at clubs. They became the hottest thing on the pop music scene in England. They began as a
25、modestly successful musician group and ended the year as show business legends (传说).John Lennon and Paul McCartney were named composers of the year._3_ They were not sure how the Americans would react to the new type of music. Beatlemania hit New York on February 7，1964.Hundreds of fans jammed the a
26、irport to greet them._4_ The concert was broadcast live and attracted the largest one night audience in the history of television up to that time. The Beatles were described as a British invasion(入侵)by local and nationwide newspapers at that time. Their victory in America was still remembered as a m
27、ajor turning point in the history of rock and roll. Thanks to the Beatles，a lot of opportunities were opened up to new faces on the market._5_ AThey decided on a tour to the United States in 1964.BEven their hairstyles became major trends at that time.CRock music developed in the 1950s and the early
28、 1960s.DHowever, their songs changed the lives of generations to come.EMany rock bands were able to follow in the footsteps of the Beatles.FThey appeared in the films A Hard Days Night(1964) and Help！(1965).GThey performed their first concert in America at CBS televisions 53rd street studio.6七选五Colo
29、r is fundamental in home designsomething youll always have in every room. A grasp of how to manage color in your spaces is one of the first steps to creating rooms youll love to live in. Do you want a room thats full of life？Professional？Or are you just looking for a place to relax after a long day？
30、_1_，color is the key to making a room feel the way you want it to feel.Over the years，there have been a number of different techniques to help designers approach this important point._2_，they can get a little complex. But good news is that therere really only three kinds of decisions you need to mak
31、e about color in your home：the small ones，the medium ones，and the large ones._3_Theyre the little spots of color like throw pillows，mirrors and baskets that most of us use to add visual interest to our rooms. Less tiring than painting your walls and less expensive than buying a colorful sofa，small c
32、olor choices bring with them the significant benefit of being easily changeable.Medium color choices are generally furniture pieces such as sofas，dinner tables or bookshelves._4_They require a bigger commitment than smaller ones，and they have a more powerful effect on the feeling of a space.The larg
33、e color decisions in your rooms concern the walls，ceilings，and floors. Whether youre looking at wallpaper or paint，the time，effort and relative expense put into it are significant._5_AWhile all of them are usefulBWhatever youre looking forCIf youre experimenting with a colorDSmall color choices are
34、the ones were most familiar withEIts not really a good idea to use too many small color piecesFSo it pays to be sure，because you want to get it right the first timeGColor choices in this range are a step up from the small ones in two major ways7七选五Moving into a new home in a new neighborhood is an e
35、xciting experience. Of course，you want to make sure that you become an accepted and valuable part of your new neighborhood. The easiest way to accomplish this is to make sure you conduct yourself as a good neighbor should._1_Perhaps one of the most important things you can do as a good neighbor is t
36、o keep your property(房产)neat，clean，and in good repair. _2_By choosing to keep the outside of the home in great shape，you will help to improve the look and feel of the area.Second，take the overall appearance of the neighborhood seriously. When going for a walk，take along a small garbage bag._3_This s
37、mall act will let your neighbors know that you care about the area._4_If a neighbor is going to be out of town，offer to collect mail and newspapers. If a neighbor suffers an illness，offer to do the grocery shopping. Let them know that you are there to help in any way that is acceptable，while still r
38、especting the privacy of your neighbor._5_By following the basic rules of respecting others，taking care of what belongs to you，and taking pride in the appearance of the neighborhood in general，you will quickly become a good neighbor that everyone appreciates.AIn general，keep an eye on their property
39、 while they are gone.BA good neighbor is also one who likes to help out in small ways.CBeing a good neighbor is more or less about considerate behavior.DSometimes neighbors may go to the supermarket together to do shopping.EShould you come across waste paper thrown out of a passing car，pick it up.FP
40、eople tend to take pride in keeping everything in their street fresh and inviting.GHere are a few tips to help you win over everyone in the neighborhood quickly.8七选五School newspapers are considered to be one of the best media of teaching students about various problems in the society. They create a
41、sense of achievement in the minds of the students and help students improve their writing, creativity and management skills at a young age._1_ So its important to start a school newspaper.School newspapers are supposed to be “Of the students, By the students and For the students”The committee of the
42、 “little journalists” should include a student with excellent writing and editing skills acting as the editor, along with a team of 3 or 4 other writers regularly writing articles. Students outside the committee might also be given a chance to write short stories, poems, jokes etc._2_ This is becaus
43、e it can give a fair chance to all the students._3_ To make the contents available to readers, the contents have to be classified into different topics, including news articles on current problems, school news and announcements, activity schedules for sports and quiz competitions, columns (专栏) for p
44、ersonal contributions, such as jokes, puzzles, paintings and photography._4_ School kids can be asked to write their views about the paper or about any topic that they wish for.Its common to publish school newspapers every month. The committee may be allowed to select any other duration (持续时间) if it
45、 wishes to._5_Now, does starting a school newspaper still seem like a challenge?AIt reflects students special interests and hobbies.BA school newspaper is basically a collection of contents.CIt would be advisable to elect a new committee annually.DThey have the art of discovering new talent out of t
46、he students.ELetters to the editor are also an important part of the newspaper.FHowever, committee members should ensure publishing schedules are followed.GBut schools may publish their newspapers by putting them up for viewing in classrooms.9七选五A garden thats just right for youHave you ever visited
47、 a garden that seemed just right for you, where the atmosphere of the garden appeared to total more than the sum(总和) of its parts？_1_But it doesnt happen by accident. It starts with looking inside yourself and understanding who you are with respect to the natural world and how you approach the garde
48、ning process._2_ Some people may think that a garden is no more than plants, flowers, patterns and masses of color. Others are concerned about using gardening methods that require less water and fewer fertilizers (肥料)._3_However, there are a number of other reasons that might explain why you want to garden. One of them comes from our earliest years.Recall(回忆) your childhood memoriesOur model of what a gard
