托福考试阅读题练习
托福考试中阅读往往是考生比较头疼的一回事,其实还是要多练习,可以培养语感,提高做题效率。以下是小编为同学们准备的阅读练习题,大家可以练习下!
托福考试阅读:A Pain in Third Class
有一种叫“经济舱综合症”的病,估计很多人第一次听说。如果人在狭窄的空间长时间坐着不动,比如乘坐飞机时,腿一直弯曲着,结果会使腿部后侧静脉的血流速度降低,并在小腿深静脉中形成血凝,如血凝块脱落,顺着血流到达肺部,并在肺部形成栓塞即肺栓塞,可能会引起猝死,这就是“经济舱综合症”:一种久坐不动能致人命的病。据世界卫生组织估计,长途飞行旅客中此危险发生的几率为1/6000,这就意味着1个运载300名乘客的航班,每长途飞行20次就会有1位乘客发生“经济舱综合症”。实际上,专家认为,只要保持一个坐势,腿一直弯曲着,不活动超过4个小时,那么,发生深静脉血栓栓塞即“经济舱综合症”的危险将会明显增加。而现在,坐车的人,长时间坐着工作的人,在电脑前一坐就是半天的人,比乘坐飞机的'人要多得多,“经济舱综合症”将会威胁着更多久坐的人。
It seems the more (1)cramped(狭窄的,拥挤的) your airplane seat is, the longer the flight always takes. Some folks handle this situation by just sitting tight(绷紧的) for the entire duration(持续,期间), dreaming of the hour when the plane finally lands and they get to stretch.
That may be adding danger to discomfort, studies have found. The discomfort part you already know about. The danger is that when your body is left in a cramped position for too long, blood clots(血块) can form in your feet and legs. That’s dangerous, because a blood clot that (2)dislodges(移动,逐出) will travel in the blood stream. And that’s nothing to play around with. If it reaches your lungs, it could even kill you!
Now, of course not every hurting leg is indication of a blood clot. For the most part it’s just cramped(抽筋的) muscle. But research conducted at Tripler Army Medical Center in Honolulu showed that a surprising one out of four patients in a study group being treated for blood clots in the lower legs had been on airplanes within the past month. And a (3)whopping(巨大的) eighty-two percent still had symptoms(症候,症状) two weeks after their flight!
The problem is that sitting for four hours or more reduces blood (4)circulation(循环) in the legs, especially if you are cramped up. So, to keep the old juices flowing, and to help lower the chance of blood clots forming during a long flight, get up and walk a little in the aisle(通道,走廊).
注释:
(1)cramped['kræmpt] a.
1.难认的;难懂的
2.患抽筋的
3.狭窄的
Our accommodation is rather cramped. 我们住的地方很挤。
(2)dislodge vt.
1.用力(或设法)移动;逐出[( from)]
The doctor dislodged the fish bone from her throat.
医生取出哽在她喉中的鱼骨头。 vi.
1.离开住处
(3)whopping a.
1.巨大的;异常的 ad.
1.非常
(4)circulation n.
1.循环,环流;运行[U][S1]
We observed the circulation of blood in frogs.
我们观察了青蛙的血液循环。
2.(货币、消息等的)流通,传播[U]
Many forged notes are in circulation.
许多假钞在流通。
3.(报刊等的)发行量,销售量[S]
This paper has a circulation of more than a million.
这一报纸的发行量达一百多万份。
4.通货 ,货币[U]
-
实用英语写作技巧转换词语
第三十四单元转换词语TransitionalWordsandPhrases34.1IntroductionInthewritingofEnglishcompositions,wehavetousetransitionalwordsorphrasesinordertomakelogicalconnectionsbetweenindividualsentencesandparagraphsaswellasenhancetheoverallcoherenceofa...
-
商务英语中级考试复习经验
导语:下面是小编整理的一些关于商务英语中级考试的复习经验,大家可以仔细看看,希望对大家有帮助。口语:一定要找对Partner。而且据我所知,从2006年下半年开始,你的搭档通常就是和你一起报名的人,所以最好是英语水平跟你差不多,而且住的比较近,这样才可以经常练习。经常...
-
高考英语作文参考范文2017
现在高考作文模式单一,考察目的明确:就是看学生能不能按要求把事情写清楚,然后从修辞上考察学生英语能力。为了帮助大家备考,小编整理了一些高考英语作文范文,大家可以参考参考。推荐一家英语学习网站假如你是李华,你的朋友李明急于提高英语口语,你得知消息后,给他写...
-
2016年9月公共英语口试应试技巧
PETS是教育部考试中心设计并负责的全国性英语水平考试体系。只有同时通过了口试和笔试这两项才可获得证书,那么针对口试,该如何应对呢?下面就和本站网小编一起来了解下吧!一.基本问题在口语考试的开始阶段,考官会围绕考生的背景知识提一些常识性的问题。这些内容包...