精英家教网 > 高中英语 > 题目详情
18.If you don't know what it means,______ the dictionary.(  )
A.look upB.refer toC.point toD.look out

分析 你不知道这是什么意思,参考查阅一下字典.

解答 答案B.
look up查找,仰望,向上看;refer to参考;涉及;指的是;适用于;point to指向;表明;look out注意;朝外看;照料;当心.look up与refer to都有"参考""查询"的意思,但搭配不同.(1)look up的宾语多为word,information等,不可以是book,dictionary,sb.等.(2)refer to意思比较广泛,它既可作"查询""查找"讲,又可作"谈到""提及"讲.其宾语多为book,dictionary,sb.等.根据句子所要表达的意思和look up与refer to的区别可知答案选B.

点评 本题考查动词短语的辨析.英语中有的词组没有捷径,只有平时加强记忆,要注意区别,记忆的时候不能忽视,这是常见的命题方式.平时要加强记忆,做题时,别忘了要结合上下文句意判断.
look up与refer to都有"参考""查询"的意思,但搭配不同.(1)look up的宾语多为word,information等,不可以是book,dictionary,sb.等.如:
You may look up the word in the dictionary if you don't know its meaning.
如果你不知道这个单词的意思,你可以查一下词典.
(2)refer to意思比较广泛,它既可作"查询""查找"讲,又可作"谈到""提及"讲.其宾语多为book,dictionary,sb.等.如:
She didn't even refer to the notes when she made the speech.
作演讲的时候,她甚至不看笔记.
When I meet new words I don't know,I often refer to the dictionary.
当我遇到不认识的新单词时,我经常查词典.
I don't know what"it"refers to.
我不知道"it"指什么.

练习册系列答案
相关习题

科目:高中英语 来源: 题型:填空题

16.打猎 v.hunt.

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

9.Conventional wisdom is a major barrier to innovation(创新) that threatens the survival of companies everywhere.It's based on the assumption that old ideas will always work,so they shouldn't be challenged.While this may be a valid(有效的) assumption in situations that don't change,it's unlikely to hold true in a changing situation.In today's rapid changing global environment,old methods often don't work,and stubbornly using them can lead to major problems.
Most people seem to agree with conventional wisdom because it gives one a false sense of security.If everyone else believes it,then it must be true.Individuals who use conventional wisdom are certain that they are right,and being right is good.They want to continue using old ideas rather than take risks with changes that might not work.In 1977,Ken Olsen,co-founder and CEO of Digital Equipment Corporation (DEC),stated"There is no reason for any individual to have a computer in his home."Despite being a dominant leader in the computer industry,DEC no longer exists.
People seem to forget that since innovation is a change,there can be no innovation without change.Unfortunately,conventional wisdom prevents leaders,followers and companies from changing and therefore innovating.If companies don't innovate,but their competitors do,the future is likely to be problematic.Breaking from conventional wisdom has led to many of the most innovative companies and products in history across many industries,so it has a powerful effect on business success.
Ted Turner (founder of CNN) knew little,if anything,about the news business,but he knew it was inconvenient to watch news only at the dinner hour,as was common before CNN.Turner's solution was to create a cable channel dedicated to news 24 hours a day.The news establishment reflected conventional wisdom at the time,and predicted his idea would fail because no one wanted to watch the news all day.However,it doesn't take a rocket scientist to understand that viewers don't have to watch the news all day for the CNN to work.Viewers just have to watch when they want to get information.Due to conventional thinking,the critics failed to recognize the opportunity that was clear to Ted.They assumed that only what was familiar to them could work in the future.
Conventional wisdom prevents creativity,flexibility and risk-taking,so unconventional leaders enthusiastically break from it.To survive,thrive and maintain competitive advantage,companies must be flexible when reacting to change.
28.DEC has disappeared probably becauseC.
A.the consumers didn't like its products
B.the leaders lacked the sense of security
C.the CEO stuck to the conventional ideas
D.the employees took many risks with changes
29.The founding of CNN is used as an example to proveB.
A.missing opportunities could lead to failure
B.changing could contribute to business success
C.watching news at the dinner hour is convenient
D.conventional wisdom influences business success
30.What does the underlined part probably mean?D
A.Rocket scientists can ensure the CNN works properly.
B.Most of the viewers don't like to watch the news at work.
C.It's necessary to understand when people watch the news.
D.It's easy to know people needn't watch the news all the time.
31.The passage is mainly written to tell us thatC.
A.old methods are changing with time
B.opportunities lead to business success
C.conventional wisdom limits innovation
D.successful companies need wise leaders.

查看答案和解析>>

科目:高中英语 来源: 题型:选择题

6.Anyone who breaks the law could hardly           it.(  )
A.throw awayB.get awayC.break away fromD.get away with

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

13.To:Director of Operations,Greensboro Hospital
From:Worldwide Express(WW-EX)
Date:September 3,2014
We are writing to inform you that our company,Worldwide Express(WW-EX),now provides the advanced Medical Express Solutions system,a best available packaging and delivery service customized especially for the healthcare industry.The transport of materials can be costly,but our service can offer your hospital a safe,inexpensive,technologically advanced method for shipping your healthcare materials.Worldwide Express,already a trusted name in packaging and delivery,can guarantee that you can place your confidence in our new Medical Express Solutions.
As fierce competition and tighter regulations force companies to operate in a more cost-effective manner,the pace of change in the healthcare market is creating some difficult challenges.Medical Express Solutions helps address these challenges with fast and reliable transportation system that uses unique protective packaging.By joining forces with Medical Express Solutions,your medical facility will have an unbroken delivery chain,providing temperature-controlled protection for all medical products and diagnostic specimens(诊断标本) at various stages of storage and transport.
Medical Express Solutions'special packaging system provides reliable delivery of time and temperature-sensitive materials without the need to replace dry ice during transport.Made of recyclable materials,our patented packaging is more environmentally friendly,and guarantees safe storage,support,and delivery of healthcare-related products in cooled or deep-frozen states for up to 120hours.In addition,our service is easy to use.Attached,please find a sample copy of our WW-EX Airbill Hospital staff simply fill out the information on the Airbill,and Medical Express Solutions takes care of the rest,including the packing.
With reliable and speedy service,guaranteed delivery times,and dependable tracking of sensitive shipments,your hospital staff can track the progress of their deliveries at all times.Do not wait another day.Phone l-800-290-5992.and one of our experienced staff will assist you in obtaining further information on setting up a WW-EX Medical Express Solutions account for your facility today.
Thank you for your attention.
Bill Grawley,
President,Worldwide Express
21.What do we know about Worldwide Express?B
A.It designs shipping packages.
B.It's a reliable delivery company.
C.It produces healthcare materials.
D.It's a newly developed shipping system.
22.The Medical Express Solutions systemC.
A.was created by GreensboroHospital
B.helps solve challenges in the healthcare industry
C.provides high-quality packaging and delivery service
D.was designed to protect diagnostic specimens for hospitals
23.We can infer from the text that hospital staffD.
A.must present their personal information
B.need to pack their items before delivery
C.will open a Worldwide Express account for free
D.can view where their items are during the delivery process
24.What is the purpose of this letter?A
A.To recommend a superb service.
B.To market a patented packaging.
C.To advertise healthcare facilities.
D.To introduce a trusted company.

查看答案和解析>>

科目:高中英语 来源: 题型:书面表达

3.2015年两会前夕,原中央台记者柴静自费制作的关于环境污染的纪录片《穹顶之下》引起强烈反响.假如你是李华,应用英语给21世纪英文报写一封信,表达你的观点.
内容包括:1.阐述柴静所做的事对我们生活的影响
          2.面临环境污染我们能做些什么
注意:1.词数100 左右
      2.开头和 结尾已给出,不计入总词数
Dear editor,
After watching the movie Under the Dome,I was deeply moved by what ChaiJing did.____________________________________________________
_________________________________________________________________
         Best wishes!
                                                      Yours,
                                                       LiHua.

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

10.我们会尽早通知你面试的最终结果.(inform)We'll inform you of the result of your interview as soon as possible..

查看答案和解析>>

科目:高中英语 来源: 题型:书面表达

7.假设你叫李华,你从报纸上得知世界上很多物种面临灭绝的危险,而人类活动是造成物种灭绝的主要原因.你决定给世界野生生物基金会(WWF)写信反映这一情况、提出你的建议.
1  The present situation of wildlife;
2  What has caused the situation;
3  Your advice.
Dear Sir or Madam,
I've learned from a newspaper that lots of species in the world are dying out.
                                                                 
Li  Huan.

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

8.The bed should be reserved as a place for sleep,but people tend to read an iPad a lot in bed before they go to sleep.
Charles Czeisler,a professor at Harvard Medical School,and his colleagues got a small group of people for an experiment.For five days in a row,the people read either a paper book or an iPad for four hours before sleep.Their sleep patterns were monitored all night.Before and after each trial period,the people took hourly blood tests to paint a day-long picture of just how much melatonin (褪黑激素) was in their blood at any given time.
When subjects read on the iPad as compared to the paper books,they reported feeling less sleepy at night and less active the following morning.People also took longer to fall asleep on the iPad nights,and the blood tests showed that their melatonin secretion (分泌) was delayed by an hour and a half.
The researchers conclude in today's journal article that given the rise of e-readers and the increasingly widespread use of e-things among children and adolescents,more research into the long-term consequences of these devices on health and safety is urgently needed.Czeisler and colleagues go on,in the research paper,to note:"Reading an iPad in bed may increase cancer risk."
However,software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of day,and there are also glasses that are made to filter (过滤) short wavelengths.While they seem like a logical solution for the nighttime tech users,it needs more research.
28.In Charles Czeislers experiment,all the subjects were asked toB.
A.sit in a row and receive the strict tests             
B.have their sleep patterns observed all night
C.read a paper book and an iPad at the same time      
D.have their blood tested per hour during the trial
29.The third paragraph tells us the iPad readers were likely toC.
A.feel less sleepy and tired in the day    
B.fall asleep more easily after reading
C.become less energetic the next morning 
D.have a lot more melatonin secretion
30.The special software recently developed canC.
A.remove the blue light from your devices completely
B.help prevent eyes being harmed by short wavelength
C.weaken the harm done by doing nighttime e-reading
D.be used in all the e-things widely and safely
31.Which of the following can be the best title for the text?A
A.No e-reading in bed before sleep
B.New software for night e-readers
C.Wrong behaviors before bedtime 
D.No games on iPad in bed.

查看答案和解析>>

同步练习册答案