2019高考英语一轮基础达标练题Unit2Healthyeating含解析新人教版.docx

Healthy eating李仕才一、阅读理解。(2018广西重点高中模拟)People love cellphones, which is why nine in ten Americans own one.But does heavy use of cellphones pose a risk of cancer? This question has caused controversy for many years. A new study in rats now augments those concerns.Its data linked longterm, intense exposure to radiation from cellphones with an increased risk of cancer in the heart or brain.The results have yet to be confirmed, the authors note.Indeed, although the rat study found a link between cellphone radiation and cancer, it offers no clues to why such a link might exist, notes Jonathan Samet.He teaches preventative medicine and directs the Institute for Global Health at the University of Southern California in Los Angeles.Still, he calls the new studys findings “significant”They could lead to studies researching how cellphone radiation might cause cancer, he says.Phone signals are relayed between cell towers and cellphones via radio waves.This radio frequencyor RFradiation is a type known as nonionizing(非电离的). Unlike Xrays, nonionizing radiation does not deposit enough energy into cells to release electrons from atoms or molecules, producing ions.So it tends to be far less harmful than ionizing radiation, such as Xrays.But that does not mean radio waves might not cause harm.In very large doses(量) this radiation will heat the body and cause tissue damage.But its not yet known what much lower RF levels might do, such as those from cellphone use.Five years ago, the World Health Organizations International Agency for Research on Cancer, or IARC, concluded that cellphone use “is possibly carcinogenic(致癌的)”Its conclusion was based on what little research data was available at that time.But notice that IARC was not certain.It said only that phone use might “possibly” cause cancer.So scientists at the National Toxicology Program, or NTP, investigated further.【解题导语】本文是一篇说明文。人们喜欢用手机，90%的美国人都有手机。那么，过度使用手机是否会有患癌的风险呢？一项新的研究给出了一些线索。1Which of the following can replace the underlined word “augments”？Afigures outBputs outCrefers toDadds toD解析：词义猜测题。画线词前面提到过度使用手机是否有患癌的风险这一问题多年来引发的争议不断，再根据画线词后的“concerns”和“Its data linked longterm, intense exposure to radiation from cellphones with an increased risk of cancer in the heart or brain.”可知，现在一项在老鼠身上进行的新研究增加了那些忧虑。故画线词与adds to意义相近。2In which aspect does Jonathan Samet think the new study in rats is significant?AIt assists him with his teaching.BIt indicates a new research direction.CIt warns people to mind cellphone safety.DIt makes a breakthrough in cancer research.B解析：推理判断题。根据第二段最后一句可知，这项研究会促使科学家去查明手机辐射可能是怎样致癌的，也就是说它为科学家提供了一个新的研究方向。3What is Paragraph 3 mainly about?AHow phone signals are delivered.BHow cellphones produce radiation.CFeatures of radiation from cellphones.DDifferences between ionizing and nonionizing radiation.C解析：段落大意题。根据第三段的“nonionizing radiation does not deposit enough energy into cells to release electrons from atoms or molecules, producing ions.So it tends to be far less harmful than ionizing radiation.”可知，本段主要讲的是手机辐射的特点，它是非电离的，其危害性远低于电离辐射。4What might be the theme of NTP scientists further research?AWhy cellphone use causes cancer.BWhether cellphone use really causes cancer.CWhat health effects cellphone use has.DHow much exposure to cellphone radiation is safe.B解析：推理判断题。根据最后一段中的“It said only that phone use might possibly cause cancer.So scientists at the National Toxicology Program, or NTP, investigated further.”可知，NTP的科学家进一步研究的主题可能是手机使用是否真的会导致癌症。二、单句语法填空1(2017天津高考)My room is a mess, but I _ clean it before I go out tonight. I can do it in the morning.答案：neednt由“I can do it in the morning”可知，“我”今晚没必要打扫，应用Sb. neednt do sth. 句式。2(2017天津高考)I was watching the clock all through the meeting, as I had a train_ (catch)答案：to catch结合句意可知，此处表示将要发生的动作，故用动词不定式作定语。3There is a limit _ the amount of pain we can bear.答案：toThere is a limit to . “是有限度的”。4The beautiful lady sat a little straighter and tried to look _ (slim) and younger.答案：slimmer由“and younger”可知，应用比较级slimmer “更苗条”。5Nowadays more and more people have come to realize the importance of a _ (balance) diet to their health.答案：balanceda balanced diet “均衡饮食”。6Children are always curious _ everything they see and hear.答案：aboutbe curious about “对感到好奇”。7Being a good teacher, you should know your students _ (strong) and weaknesses.答案：strengthsstrengths and weaknesses “强项和弱项”。8Lowincome residents cant afford _ (consult) a doctor or purchase medicines when they get sick.答案：to consultcant afford to consult a doctor “请不起医生”。9We cant always combine work _ pleasure.答案：withcombine A with B “将A与B相结合”。10Johns _ (weak) lies in his bad temper.答案：weakness由设空前的Johns可知，应填名词形式weakness “缺点，不足”。三、完形填空。阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可能填入空白处的最佳选项。I worried about my personal image and how I could be remembered during my boyhood.In the fifth grade，there seemed to be only one _1_ to be cool.In the sixth grade，suddenly，there were two choices：be cool，or be invisible._2_ ，one day，when a teacher had us fill out a questionnaire with _3_ questions，I found the _4_ option.Assuming(假定)the teacher would read our answers privately，I felt it was _5_ to share my privacy.To my _6_ ，she collected and redistributed(重新分发)them to us.We were asked to _7_ the name and our three favorite answers to the whole class.My answers went to the meanest boy in class.The first question was“Whats your favorite movie？” My answer was Beauty and the Beast.A laugh erupted and my cheeks _8_.The next was“Where would you like to travel？” My answer was _9_ special“Wherever a book takes me.”The _10_ this time had an explosive quality.I could _11_ remember what happened next；all that I had in mind was the laughter.But something amazing happened.A(n) _12_ came，“Guys，cut it out.”The room went _13_ .Its Michelle Siever，a popular and cool girl.Then she _14_ ，“Why are you laughing? What is the point of _15_ if we just laugh at others？”I cant remember the teacher or other kids names，but I remember Michelles.When she _16_ for me that day，she _17_ me we actually have three choices if we want to be remembered.Be cool，and you might be remembered _18_.Stay invisible，and you wont be remembered at all.But if you stand up _19_ someone when he or she _20_ you most，then you will be remembered as their hero for the rest of their life.1A.toolBchoiceCchance Dpurpose2A.However BIn additionCTherefore DIn fact3A.personal BfunnyCvarious Dstrange4A.wrong BformerCthird Dlatter5A.terrible BsafeCnervous Dinteresting6A.surprise BanxietyCdelight Dexpectation7A.repeat BrememberCcompare Dread8A.ached BpaledCchanged Dburned9A.even BstillCnever Dalways10A.laughter BquestionCair Dclass11A.nearly BexactlyChardly Dsurely12A.request BmessageCorder Dvoice13A.crazy BsilentCangry Dempty14A.announced BsmiledCadded Dstopped15A.talking BchattingCarguing Dsharing16A.talked about Bcalmed downCleft behind Dspoke up17A.reminded BpromisedCshowed Dpersuaded18A.for a while BfinallyCagain and again Dhopefully19A.before BwithCfor Dby20A.misses BneedsCvalues Dloves【解题导语】本文是一篇记叙文。在老师组织的全班问卷调查活动中，“我”的回答引起全班同学哄堂大笑，这时一个女生站起来帮助“我”走出困境。同时，“我”明白了一个道理：在别人需要你的时候站出来会被别人永远记住。【核心词汇】image n印象，形象invisible adj.无形的，看不见的fill out填写cut out阻挡，删除，住口1B根据空后一句中的“In the sixth grade, suddenly, there were two choices”可知，此处表示，在五年级，似乎只有唯一的选择(choice)来让别人记住自己装酷。2A根据下文内容可知，老师让同学们填调查问卷这件事使“我”改变了原先的看法，故前后为转折关系，所以选A。3A根据下文中的“share my privacy”可推知，此处表示老师要求回答的是我们的私人(personal)问题。所以选A。4C根据上文内容可知，到六年级，“我”突然认为被别人记住有两个选择，但是通过老师让同学们填调查问卷这件事，“我”发现了第三种选择。所以选C。5B根据上文内容可知，假如老师私下阅读我们的回答，“我”就感觉分享的隐私是安全的(safe)。所以选B。6A根据上下文可知，老师没有私下阅读我们的回答而是重新分发，让同学之间互读，这种做法让“我”感到吃惊。所以选A。7D参见上题解析。8D根据空前的“A laugh erupted”及常识可知，“我”对第一个问题的回答引起了同学们的大笑，由此可知，“我”当时面颊发烫(burned)。选项D符合语境。9B根据下文中的“this time had an explosive quality”可知，“我”对第二个问题的回答仍然(still)是特别的，因此这一次笑声(laughter)更加强烈。still“仍然，还是”，符合语境。10A参见上题解析。11C根据空后的“all that I had in mind was the laughter”可知，此处指“我”几乎不能(hardly)记得后面发生了什么，所以选C。12D根据下文中的“Guys, cut it out”可知，Michelle Siever的声音(voice)传来，所以选D。13B根据上下文可知，这个声音使整个房间安静(silent)了下来。14C根据空后的两个问句可知，Michelle Siever继续在说，即补充道(added)。15D根据全文的内容，尤其是老师要求我们填调查问卷然后交换并在全班朗读这一活动过程可知，这是同学们之间的一次交流分享(share)活动。所以选D。16D根据上文内容可知，“我”对两个问题的回答引起全班的大笑，这时Michelle Siever的话使全班安静下来，据此可推断她在替“我”辩护。所以选D。 speak up(for sb./sth.)“(尤指为)说好话，辩护”。17C她替“我”辩护这件事向“我”展示(showed)了如果想要被人们记住，我们有三种选择。所以选C。18A通过这件事，“我”知道装酷只能被别人记住一时(for a while)。所以选A。19C根据上文内容可知，“我”之所以能够摆脱困境是因为Michelle Siever为“我”辩护。所以“我”总结出想要被别人记住的第三种选择是：当人们需要(needs)你时，你站出来为(for)他们说话，这样你就会被他们当做英雄一样被铭记一生。所以选C。20B参见上题解析。四、单句改错1The warning sign was put there with the benefit of the public._答案：withforfor the benefit of . “为了的利益”。2Since the dancers have to pay the high cost of clothing out of their own pockets, they are often heavily in the debt._答案：去掉debt前的thein debt “负债”。3The old man earns his live by begging door to door._答案：livelivingearn ones living “谋生”。4The man ought to be fired. You shouldnt let him get away from stealing from the shop._答案：fromwithget away with “做了坏事不受惩罚”。5He should have handed in his paper yesterday, and he forgot about it completely._答案：andbut前后分句之间为转折关系。五、短文改错Here is a funny story.One day three mouse said proudly to each other that they each could drink more wine，so they decided to have a drinking contest.At last they both felt dizzy.One suggested，“Will anybody go to the wine cellar to fetch another bottle of wine？” The first stood up and down then fell to the ground.The other two laughed and sa