1、课时作业20Theme parks.阅读理解AExperts are warning about the risks of extreme picky eating after a teenager developed permanent sight loss after living on a diet of chips and crisps.Since leaving primary school, the teen had been eating only French fries, white bread, as well as an occasional slice of ham o
2、r a sausage.The adolescent, who cannot be named, had seen his doctor at the age of 14 because he had been feeling tired and unwell. At that time he was diagnosed with lack of Vitamin B12 and put on supplements, but he did not stick with the treatment or improve his poor diet.Three years later, he wa
3、s taken to the Bristol Eye Hospital because of progressive sight loss. Dr Denize Atan, who treated him at the hospital, said：“His diet was only a portion of chips from the local fish and chip shop every day. He also used to snack on chips, white bread and sometimes slices of ham or sausage, and not
4、really any fruit and vegetables.”The teen explained this as a dislike to certain kinds of food that he really could not tolerate, and so chips and crisps were really the only types of food that he wanted and felt that he could eat.Dr Atan rechecked the young mans vitamin levels and said “he was low
5、in B12 as well as some other important vitamins and mineralscopper, selenium and Vitamin D. He was not over or underweight, but was severely malnutritional from his eating disorder. He had lost minerals from his bone, which was really quite shocking for a boy of his age.”“He had blind spots right in
6、 the middle of his vision，” said Dr Atans assistant. “That means he cant drive and would find it really difficult to read, watch TV or recognize faces, but he can walk around on his own because he has got peripheral (周边的) vision.”The condition the young man has is treatable if diagnosed early. Left
7、too long, however, the nerve fibres in the optic nerve (视神经) die and the damage becomes permanent.Now he has been put on vitamin supplements and sent to a dietitian and a specialist mental health team.本文是一篇记叙文，介绍了最近英国一名少年由于常年只吃薯条、薯片和其他垃圾食品，最终导致双目失明。这给挑食的人们提了个醒。1What can we know about the boy?AHe did
8、nt see a doctor.BHe can not see anything now.CHe has a normal body shape.DHe insisted on taking supplements.答案：C解析：细节理解题。根据第一段中teenager developed permanent sight loss可知，男孩并没完全失明，只是视力减退；根据第三段中.had seen his doctor at the age of 14可知男孩去看过医生；根据At that time he was diagnosed with lack of Vitamin B12 and p
9、ut on supplements, but he did not stick with the treatment or improve his poor diet.可知，男孩没有坚持吃这些营养剂；根据第六段中He was not over or underweight.可知，这个少年并没有超重或体重过轻，所以少年的体型正常，故选C项。2What kind of food does the boy refuse to eat?ACrisps and chips. BWhite bread.CHam and sausage. DFruit and vegetables.答案：D解析：细节理解题
10、。根据第四段中He also used to snack on chips, white bread and sometimes slices of ham or sausage, and not really any fruit and vegetables.可知，他还经常吃薯片，有时吃几片白面包，偶尔吃几片火腿，不吃任何水果和蔬菜。所以小男孩拒绝吃水果和蔬菜，故选D项。3What can we learn from Dr Atans words?AVegetables and fruit are the only source of vitamins.BLack of vitamins a
11、nd minerals may lead to the loss of sigh.CThe more vitamins we take, the better.DLoss of minerals from bone causes blindness.答案：B解析：推理判断题。根据第六段、第七段中he was low in B12 as well as some other important vitamins and mineralscopper, selenium and Vitamin D. “He had blind spots right in the middle of his vi
12、sion，” said Dr Atans assistant.可知，少年体内的维生素B12以及其他一些重要的维生素和矿物质铜、硒和维生素D含量都很低。Dr Atan医生说这个少年的视力正中间有盲点。所以通过Dr Atan的话可以判断出，缺乏维生素和矿物质可能导致失明，故选B项。BSome years ago, Michel Andr found himself staring at the body of a dead whale on a beach in the Canary Islands. It was obvious that the animal had been struck v
13、iolently by a shipbut why? Only later, after surveying the whales which lived in the area and measuring the increase of sound pollution from ships did it become clear that there was a link.The whales had become desensitised to the noise of approaching boats and were being struck by them, often serio
14、usly. “We never thought that this could be something that could kill，” recalls (回忆起) Andr， who is the director of the Laboratory of Applied Bioacoustics at the Technical University of Catalonia, Barcelona.Andr has spent 20 years developing an advanced system to better understand why incidents like t
15、his happen. His underwater microphones have exposed a world of deafening sound and animal communication never observed with such clarity (清晰) before.It was not an easy task. Sound waves dont travel through water in the uniform, predictable way they do through the air. Instead, the temperature, salin
16、ity (盐度) and flow of water have great effects on their path.What can be done? One solution is to change shipping routes to course where ships are statistically less likely to meet animals. Its also possible to slow ships down to 18km/h or less, which is less likely to seriously injure a whale.As for
17、 dealing with the root cause of the problem, the UNs International Maritime Organisation has already published guidelines on how to quieten ships, but it will be a while before the effects of such changes might be observed.“The ocean is not our world，” comments Andr. But it is ours to look after. An
18、d thanks to his work, we can better understand the effects of subsea sound pollution.本文是一篇说明文，文章通过介绍Michel Andr的发现，讲述了海底声污染对于鲸鱼的影响以及相应的应对措施。4What does the underlined word “desensitised” in Paragraph 2 mean?AStubborn. BFlexible.CDull. DFriendly.答案：C解析：词义猜测题。根据原文画线词的描述对象是船只噪音，再根据“and were being struck
19、 by them, often seriously”可知，鲸鱼被靠近的船只碰撞，因为它们对靠近的船只所产生的噪音比较“迟钝”，故C项正确。5Whats one way to solve the problem according to the text?ATo lower the speed of ships.BTo reduce the number of ships.CTo set up a preserve under the sea.DTo give the injured animals timely treatment.答案：A解析：细节理解题。根据第五段中的“Its also p
20、ossible to show ships down to 18 km/h or less, which is less likely to seriously injure a whale”可知，文中提及可以降低船只速度以解决这个问题，故A项正确。6What is the authors attitude towards what Michel Andr has done?ADoubtful. BDisapproving.CPositive. DUncaring.答案：C解析：观点态度题。根据最后一段第三句中的“thanks to his work, we can better unders
21、tand the effects of subsea sound pollution”可知，作者对Michel Andr所做的工作持积极态度，故C项正确。thanks to意为“多亏，由于”。7What is the text mainly about?AA great expert.BNoise in the sea.CAnimals in the sea.DSea exploration technology.答案：B解析：主旨大意题。通读全文可知，文章通过介绍Michel Andr的工作，讲述了海底噪音对鲸鱼的影响以及降低海底噪音的措施，故B项最符合文章主旨。.七选五If you fin
22、d yourself losing the motivation to do your homework, you are not alone._1_ If you want to get good grades, of course, you must do your homework. Heres how to find the motivation：_2_ If you are too tired, youll just want to watch television instead of thinking about your homework. Plus youll have a
23、much easier time remembering what youve read if you are energetic.Turn off the distractions. Turn off the music and television. If you dont need your computer or the Internet for your homework, turn it off as well. Make sure your study area is free from distractions. _3_Start right away. Doing your
24、homework right after you get home can keep you from falling into the trap of endless hours of distractions. _4_ Although it may not be popular to do your homework on a Friday night, youll have the rest of the weekend free.Create a schedule. _5_ Plan out when you will do each part of the assignment.
25、Split them into small parts, so that you can feel good about completing each part. It can be much easier to deal with a big assignment or project once youve split it into manageable pieces.Homework can be boring, but its necessary if you want to pass your classes. Once you make a plan to finish your
26、 homework, stick to it.AGet enough rest.BGather your materials.CWrite all of your assignments on a checklist.DMany students delay in doing their homework.EYoull easily get distracted and avoid finishing your homework.FPlus the material youve learned will still be fresh in your mind.GYoull be able to
27、 finish your homework much faster if you can focus on it.有不少学生缺乏做家庭作业的积极性，本文就如何提高学生做家庭作业的积极性给出了一些简单但行之有效的应对策略。1D解析：根据第一段“If you find yourself losing the motivation to do your homework, you are not alone”以及下文给出的几个方法可推知，该空应是说明许多学生做家庭作业缺乏积极性的情况，故选D项。2A解析：分析文章结构和空处所在的位置可知，本空是该段的主题句。根据本段的两个假设“If you are
28、too tired”和“if you are energetic”可推知，本段的建议是要休息好，故选A项。3G解析：根据空前一句可知，要确保你的学习区域没有分散注意力的事物，由此可推知，没有了分散注意力的事物的干扰，你就会关注家庭作业，这样你将能更快地完成它，故选G项。4F解析：承接前一句“Doing your homework right after you get home.endless hours of distractions”可知，该空应是进一步说明回家后立刻做家庭作业的好处，故选F项。5C解析：根据该段的主题句“Create a schedule”，并和后一句中的“Plan ou
29、t”和“assignment”形成呼应可知，此处表示在创建一个计划时，要把所有的任务写在一个清单上，故选C项。.语法填空New York is sampling some of the delicacies (佳肴) that pop up in the office, either when staffers return from China _1_ when the goodies are cooked right here. There are the annual holiday servings of baozi and jiaozi and a _2_ (various) of
30、treats containing bean paste. They all have unique tastes.This week I got to try something new: goji berries, also _3_ (know) as wolfberries, along with cookietype treats based on the bright fruit. Hu He, one of China Dailys website editors currently _4_ (work) in New York, gave me and other colleag
31、ues each a supply _5_ goji berries. And I enjoyed the entire bottle in a few days.Goji has been regarded as a _6_ (tradition) health supplement by Chinese people. In recent years, the demand for goji has been rising and we _7_ (see) increasing numbers of buyers from overseas.Why am I going on about
32、goji berries? It turns out that they have many pretty good health _8_ (benefit): They contain antioxidants (抗氧化物) _9_ help fight cancer; they supposedly can help improve eyesight, reduce blood pressure, control cholesterol (胆固醇) and improve circulation. One other claim about goji berries _10_ (be) t
33、hat they can raise your metabolism (新陈代谢), which contributes to weight loss.枸杞被中国人认为是一种传统的补品，对人的健康有巨大的好处。近年来，枸杞的海外购买者的数量在不断增加。1or解析：考查连词。分析句子结构以及句中的“either”可知，此处表示选择关系。故填连词or。2variety解析：考查词性转换。根据空前的“a”和空后的“of”可知，此处应用名词，a variety of意为“各种各样的”。3known解析：考查非谓语动词。此处表示枸杞浆果也被称为枸杞子，动词know与其逻辑主语goji berries构成
34、动宾关系，故用其过去分词形式。4working解析：考查非谓语动词。此处的“one of.in New York”作Hu He的同位语，动词work与其逻辑主语Hu He构成主谓关系，故用其现在分词形式。5of解析：考查介词。a supply of意为“一定量的”，为固定用法。6traditional解析：考查形容词。此处所填的词修饰其后的名词词组“health supplement”，故应填形容词。7have_seen解析：考查时态和主谓一致。根据该句中的时间状语“In recent years”并结合语境可知，此处应用现在完成时，且主语为we，故填have seen。8benefits解析：考查名词的单复数。根据空前的“many”以及空后所列举的好处可知，此处表示不止一个好处。故填名词的复数形式。9that/which解析：考查定语从句。分析句子结构可知，此处引导定语从句，先行词为antioxidants，表示物，关系词在从句中作主语，故用that/which。10is解析：考查时态和主谓一致。根据语境可知，此处为一般性描述，应用一般现在时，该句的主语为“One other claim”，为单数形式，谓语动词应用单数。故填is。
