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1、专题 9 七选五专题之-过渡句题【考查方式】在七选五中对于过渡句的考查主要包括段落内过渡句和段落间过渡句。段落内过渡句：仔细阅读空格前后相邻内容，挖掘内在的逻辑关系，注意衔接词和体现逻辑关系的信号词，然后与选项中的关键词建立联系；段落间过渡句：阅读上一段的断尾和下一段的内容，注意衔接词和体现逻辑关系的信号词，然后与选项中的关键词建立联系。衔接词与体现逻辑关系的信号词：并列与递进关系：firstly, secondly, thirdly,first,then,next,finally,at last,in the end.in the first place,in the second plac
2、e,for one thing ,for another,and, also,notbut, further, moreover, whats more, eitheror, neithernor, not onlybut also, in addition,as well,to make matters worse. 等;因果关系：so, therefore, thus, hence, accordingly, consequently, as a result等；转折与让步关系：however, in fact,as a matter of fact,nevertheless, thoug
3、h, yet, in spite of, on the contrary, (un) fortunately,otherwise, while, rather than, even if, despite, 等。细节过渡类题可通过同词复现、同范畴词复现、句子之间的逻辑关系、代词等方法来做题。实战演练【例题】 2016 北京The Science of Risk-SeekingSometimes We decide that a little unnecessary danger is worth it because when we weigh the risk and the reward,
4、 the risk seems worth tasking.71_Some of us enjoy activities that would surprise and scare the rest of us. Why？ Experts say it may have to do with how our brains work.The reason why any of us take any risks at all might have to do with early humans. Risk-takers were better at hunting, fighting, or e
5、xploring.72_As the quality of Risk-taking was passed from on ration to the next, humans ended up with a sense of adventure and a tolerance for risk.So why arent we all jumping out of airplanes then？ Well, even 200,000 years ago, too much risk-taking could get one Killed. A few daring survived, thoug
6、h, along with a few stay-in-the-cave types. As a result, humans developed a range of character types that still exists today. So maybe you love car racing, or maybe you hate it.73_No matter where you are on the risk-seeking range, scientists say that your Willingness to take risks increases during y
7、our teenage years.74_To help you do that, your brain increases your hunger for new experiences. New experiences often mean taking some risks, so your brain raises your tolerance for risk as well.Mean taking some risks, so your brain raisers your tolerance for risk as well.75_For the risk-seekers a p
8、art of the brain related to pleasure becomes active, while for the rest of us, a part of the brain related to fear becomes active.As experts continue to study the science of risk-seeking, well continue to hit the mountains, the waves or the shallow end of the pool.A.It all depends on your character.
9、B.Those are the risks you should jump to take.C.Being better at those things meant a greater chance of survival.D.Thus, these well-equipped people survived because they were the fittest.E.This is when you start to move away from your family and into the bigger world.F.However, we are not all using t
10、he same reference standard to weigh risks and rewards.G.New brain research suggests our brains work differently when we face a nervous situation.【答案】71.F 72.C 73.A 74.E 75.G解析试题分析: 文章从科学上对追求险和刺激进行了解释。冒险行为与大脑的工作机制有关，当大脑的快乐中枢被激活时，人们就会采取冒险行为。71 F 前句提到了“weigh the risk and the reward,F项“然而，并不是所有人都使用同样的参考
11、标准来权衡风险和回报”符合语境，故选F。72. C hunting. fighting. or exploring 狩猎、战斗和探索等活动是生存的必要条件，C项中的those是对这些活动的指代，故选C。73.A 根据humans developed a range of character types可知，人们形成的不同类型的性格如今仍然存在，正是不同的性格类型才导致了我们对冒险行为采取不同的态度，故选A。74. E E项中的when与your willingness to take risks increases during your teenage years中的teenage year
12、s对应，故选E。75. G 根据“a part of the brain .while for the rest of us.可知，本段讲的是冒险行为与大脑的关系， 故选G 【举一反三】1 Secret codes (密码) keep messages private. Banks, companies, and government agencies use secret codes in doing business, especially when information is sent by computer. People have used secret codes for tho
13、usands of years._Code breaking never lags (落后) far behind code making. The science of creating and reading coded messages is called cryptography. There are three main types of cryptography._For example, the first letters of “My elephant eats too many eels” Spell out the hidden message “Meet me.” _Yo
14、u might represent each letter with a number, For example, Lets number the letters of the alphabet, in order, from 1 to 26. If we substitute a number for each letter, the message “Meet me” would read “13520135”. A code uses symbols to replace words, phrases, or sentences. To read the message of a rea
15、l code, you must have a code book._For example “bridge“ might stand for “meet” and “out” might stand for “me” .The message “bridge out” would actually mean “Meet me”._However, it is also hard to keep a code book secret for long. So codes must be changed frequently.A. It is very hard to break a code without the code book.B. In any language, some letters are used more than others.C. Only people who know the keyword can read the message.D. As long as there have been codes, people have tried to break them.E. You can hide a message by having the first le
