9.She _____ concerts every day since last week.( 。
A.was performingB.has performed
C.has been performingD.had performed

分析 從上周末她每天都在進行音樂會的演出.

解答 答案:C.根據(jù)時間狀語every day since last week可知音樂會的演出從過去開始一直持續(xù)到現(xiàn)在,而且現(xiàn)在每天都在進行,所以用現(xiàn)在完成進行時,因此答案是C.D項是現(xiàn)在完成時,不強調(diào)現(xiàn)在正在進行.

點評 考查現(xiàn)在完成進行時.perform作為動詞,主要分三層:

1.vt.&vi.上演(戲);扮演(角色);演奏(樂器)
如:When will the play be performed?那出戲什么時候上演?
2.vt.做/進行;完成/履行
perform one's promise 履行承諾
3.vi.運轉(zhuǎn);行動
如:The machine performs/works well.機器運轉(zhuǎn)良好.

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:閱讀理解

19.One of our biggest fears nowadays is that our kids might some day get lost in a"sea of technology"rather than experiencing the natural world.Fear-producing TV and computer games are leading to a serious disconnection between kids and the great outdoors,which will change the wild places of the world,its creatures and human health for the worse,unless adults get working on child's play.
Each of us has a place in nature we go sometimes,even if it was torn down.We cannot be the last generation to have that place.At this rate,kids who miss the sense of wonder outdoors will not grow up to be protectors of natural landscapes."If the decline in parks use continues across North America,who will defend parks against encroachment(蠶食)?"asks Richard Louv,author of Last Child in the Woods.
Without having a nature experience,kids,can turn out just fine,but they are missing out a huge enrichment of their lives.That applies to everything from their physical health and mental health,to stress levels,creativity and cognitive(認知的)skills.Experts predict modern kids will have poorer health than their parents-and they say a lack of outside play is surely part of it; research suggests that kids do better academically in schools with a nature component and that play in nature fosters(培養(yǎng))leadership by the smartest,not by the toughest.Even a tiny outdoor experience can create wonder in a child.The three-year-old turning over his first rock realizes he is not alone in the world.A clump of trees on the roadside can be the whole universe in his eyes.We really need to value that more.
Kids are not to blame.They are over-protected and frightened.It is dangerous out there from time to time,but repetitive stress from computers is replacing breaking an arm as a childhood rite of passage(通過儀式).
Everyone,from developers,to schools and outdoorsy citizens,should help regain for our kids some of the freedom and joy of exploring,taking friendship in fields and woods that strengthen love,respect and need for landscape.As parents,we should devote some of our energies to taking our kids into nature.This could yet be our greatest cause.
58.According to the passage,children without experiencing nature willA.
A.be less healthy both physically and mentally 
B.keep a high sense of wonder
C.be over-protected by their parents           
D.change wild places and creatures for the better
59.According to the author,children's breaking an arm is.C
A.the fault on the part of their parents           
B.the result of their own carelessness in play
C.the natural experience in their growing up      
D.the effect of their repetitive stress from computers
60.In writing this passage,the author mainly intends toB.
A.blame children for getting lost in computer games
B.show his concern about children's lack of experience in nature
C.encourage children to protect parks from encroachment
D.inspire children to keep the sense of wonder about things around.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

20.Give it back to me,          I'll tell your mother.(  )
A.andB.orC.soD.but

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

17.In order to find the missing boy,the young couple            all they can over the past twenty-four hours.( 。
A.doB.didC.have been doingD.had done

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

4.We    on it for several hours but we haven't yet reached any conclusion.( 。
A.are workingB.work
C.have been workedD.have been working

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

14.Now we're always hearing about road accident,and when we're in a car we try to drive carefully,but how many of us take the same degree of care in our homes?Any large hospital will tell you the number of the accidents that happen in the home is almost the same as those on the road.
    One of the commonest and most dangerous causes of home accidents is wrong and careless use of electrical equipment.People will continue to use a loose plug or pull out a plug without first turning off the power.In spite of warnings,one will carry an electric heater into the bathroom when he is going to have a bath.Sometimes one forgets to cut off the power before mending a lamp or something else.All this will cause accidents.So the rule about anything that work by electricity is:Switch off before you touch anything and don't pretend you know when you actually don't.
If you've got children in the house,it's always best to keep medicines of any kind out of their reach.Otherwise,they may be taken for candies or a new kind of drink.When there are older people living with you,you have to take particular care in a number of ways in order to make them safe and happy.
Fire,of course,is always a risk.So,remember not to dry clothes in front of fires,or leave stoves in the middle of rooms where they can easily be knocked over.And don't forget to keep the children away from fire.Smoking,too,may cause fire.So you'd better give it up.Safety first may mean a little more time and care,but it may save you a lot of trouble.
36.According to the writer,we try to drive carefully in a car whileC.
A.we take the same degree of care in our homes
B.We don't care much about the accidents in large hospitals
C.We don't pay enough attention to home accidents
D.We seldom think a lot about the road accidents
37.We can learn from the text thatD.
A.people should never be allowed to carry an electric heater into the bathroom
B.the improper use of the electrical equipment is the most dangerous cause of home accidents
C.people should cut off the power first before using the electrical equipment
D.both the children and the older people should be taken special care of at home
38.It can be inferred in the text that our life at home will be much safer ifA.
A.we know more about the accidents that happen in the home
B.a(chǎn)ll of us give up smoking as soon as possible   
C.we take more time and care in our life
D.we keep the stoves at the corner of the rooms
39.The main purpose of writing the text isD.
A.to tell how and why home accidents happen
B.to persuade people to get rid of bad habits
C.to explain how to use electrical equipment
D.to instruct people how to prevent home accidents.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

1.She didn't run off the stage.__________,she finished the performance with a smile on her face.( 。
A.HoweverB.InsteadC.OtherwiseD.As a result

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

18.-I wonder if you could go to the movie with me.
-Oh,just leave me alone.I _______ a composition all the morning and haven't finished yet.( 。
A.writeB.was writing
C.have writtenD.have been writing

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

19.--Do you want beef _______lamb?
--Beef,please.( 。
A.andB.yetC.butD.or

查看答案和解析>>

同步練習冊答案