2018医学考博英语听力解题技巧

　　分析：

　　从第一段中我们可以听到“l want to give you some words of advice”，后文中作者就会将他的建议一一说出，听者要有思想准备。第二段中，虽然没有"first"这样的字眼，但我们听到了“the most important thing”，即“首要的”;进而我们又听到了“secondly”，最后有“That's a11”作为文章的结尾。这样听下来，我们回忆起文章的脉络就十分清晰。

　　例文2：

　　A balanced diet contains proteins，which are composed of complex amino acids.There are 20 Types Of amino acides， consisting of about 16 percent of the body weight in a lean indiVidua1.A body needs all 20 to be healthy. Amino acids can be divided into two groups： essential and nonessential.There are 9 essential amino acids. These are the proteins that the body cannot reduce by itself，so a healthy individual must consume them. The 11 nonessential amino acids，on the other hand， are produced by the body. So it is not necessary to ingest them. Proteins are described as being either high—quality or low-quality， depending on how many of the 9 essential amino acids the food contains.High—quality proteins，typically found in animal meats，are proteins that have ample amounts of the essential amino acids.Since people who follow a strict vegetarian diet are ingesting only low-quality proteins，they must make sure that their diets contain a variety of proteins，in order to ensure that what is lacking in one food is available in another.This Process of selecting a variety of the essential proteins is called protein comple-mentation.Since an insufficient amount of protein in the diet can be crippling，and prolonged absences f proteins can cause death， it is essential that a vegetarian diet contain an ample amount of the essential proteins.

　　分析：

　　1.当我们听到“two groups”，就要把后面的两个名称在脑中记下来，因为下文很可能要分别介绍在这两组事物上各发生了什么事情：果然后文紧接着就是“9 essential”与“the 11 nonessential”是否由人体自身产生的结论。若是考生意识到了这一点，听时就会抓住这两个关键词。

　　2.听到“this”，马上想到“原因”，而这一分句朗读完毕之后，就是所导致的“结果”了，考生要能通过分句间的短暂停顿来判断这一点，做到提前产生语感。

　　3.英文句子上下的连贯性是任何时候都不能忽略的。文中斜体的“this”表明了这两句话不可分割的联系，听到这样的词表明：虽有停顿，考生脑海中的语义不能中断。而“this”的读音通常不会十分响亮，容易被考生忽略。

　　例文3：

　　Hello，everybody. In our session last week，we talked about symptoms of heart disease.Today，I would like to address something else about it.As heart disease continues to be the number-one killer in the United Stated，researehers have become increasingly interested in finding the potential risk factors that trigger heart attacks.High—fat diets and“life in the fast track" have long been known to contribute to the high incidence of heart failures.But according to new studies，the list of risk factors may be significantly longer and quite surprising.

　　Heart failures，for example，appear to have seasonal and temporal patterns.A，higher percentage of heart attacks occur in cold weather，and more people experience heart failure on Monday than on any other day of the week.In addition，people are more susceptible to heart attacks in the first few hours after waking.Cardiologists first observed this morning phenomenon in the mid-1980，and have since discovered a number of possible causes.An early-morning F1SC in blood pressure，heart rate，and concentration of heart stimulating homones，plus a reduction of blood flow to the heart，may all lead to the higher incidence of heart attacks between the hours of 8：00 am and 10：00 am.

　　In other studies，both birthdays and bachelorhood have been implicated as risk factors.Statistics reveal that heart attack rates increase significantly for both females and males in the few days immediately preceding and following their birthdays。And unmarried men are more at risk for heart attacks than their married counterparts.Though stress is thought to be linked in some way to all of the above risk factors，intense research continues in the hope of further understanding why and how heart failure is triggered.

　　分析：

　　1.当听到这个分句"heart disease continues to be the number-one killer in the United States"，我们要根据所学语法知识，迅速将“as”的意义反映出来，表示“如同”、“既然”、还是“由于”，或是表示时间。然后根据后一分句的表述，可以确定这是一个因果意义的句子。如此训练多次，我们就可以越来越快地捕捉句意了。

　　2. 在短文开始不久，往往会出现“but”，“however"之类的转折词，这是作者开始阐述个人观点的标志，听者一定要注意"But”之后的内容。下文读到的“for example”“in addition”都是对作者这个观点的具体解释，听者一定要能把这相距较远的句子从内涵上真正连贯起来，才能把握通篇。

　　3."both"这个词虽小，瞬间就会读过去，但考生一定要有意识将它后面的被"and'隔开的两件事物记住，因为，“both…and”所起的作用就如同说“there are two things：one is…and the other…”。有了这个语感，我们在极短的听力朗读时间中才不会漏听信息。

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