13．---Is there a flight to Paris this evening？
---There ________ be．I'll phone the airport and find it out．（　�。�
A．mustB．willC．mightD．can

分析 --今天晚上有航班到巴黎嗎？
--可能有．我馬上就打電話到機場看看有沒有．

解答 答案：C．
must必須，應(yīng)該，一定，準是；will 表示愿意；can 表示能力、客觀的可能性、請示和允許；might表示允許、許可，表示可能性的推測，含有"或許、大概、可能"之意．根據(jù)"I'll phone the airport and find it out．"可知這里并不確定，應(yīng)該是表推測"可能有"，故用might，所以選C．

點評 本題考查情態(tài)動詞的用法．要理解句意，掌握好各個情態(tài)動詞的用法．充分利用語境，注意分清各個情態(tài)動詞適用的句型，得出答案．

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：選擇題

12．Was it your dream to make planes in your childhood ________ led you to this university？（　　）
A．whichB．thatC．whoD．what

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

20．I'll go and see you nextWednesday（星期三）．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

1．Across countryside，non-food crops are growing alongside wheat．Some are used in new alternatives to plastics and other materials，but others will simply be burned．
Burning crops is becoming more popular because it is good for the planet．Doing so is also cheaper than burning fossil fuels．As more land is devoted to non-food crop production，the economics of crops for fuel are likely to become even more favorable．
Humans have been burning such biomass-organic materials from plants or animals-since they discovered fire．But that burning fossil fuels could have catastrophic consequences has brought biomass back into fashion．
Even allowing for emissions（排放） of carbon dioxide from fuel used in planting，harvesting，processing and transporting biomass fuel，replacing fossil fuel with biomass can typically reduce greenhouse gas emissions by more than 90per cent．
Power stations around the world are experimenting with forms of biomass to add to their coal or oil，with encouraging results．Indeed，power companies could profit by turning to biomass，especially when the subsidies（補助） many governments offer for using renewable energy are taken into account．
Farmers can benefit from growing biomass．In Europe，the reduction of subsidies for certain crops is exposing farmers to market forces．Instead of being paid for whatever they produce，farmers must seek a clear demand for their product．Many believe that the demand for alternatives to fossil fuels could be just such a driver．
But while biomass offers a variety of potential alternatives，the world's infrastructure（基礎(chǔ)設(shè)施） has developed around burning fossil fuels to such a stage that switching to biomass involves a change in conception that many companies have not accepted．
Also，there are problems with using biomass．Although most coal-fired power stations could take a small amount of their fuel from biomass without significant adjustment，few are built to run on biomass alone．Burning some forms of biomass also causes environmental problems．Oils and waste can be smelly，while wood produces smoke unless burned properly．
The supply chains for fossil fuels are set up well，but those for biomass are just the beginning．Sources of supply for biomass rely on farm production and can therefore be less reliable．They are necessarily limited and it wouldn't make sense to turn a very large amount of valuable agricultural land away from food crops．But as the world adjusts to the need to control greenhouse gas emissions，these problems may receive more attention．

67．What do we know about biomass？C
A．It is a useful way of burning crops．
B．It is a new alternative to be used widely．
C．It is plant and animal matter used to provide power．
D．It is a popular approach to fighting against pollution．
68．What are the advantages of using biomass？D
a．It gives off less greenhouse gases．
b．It helps farmers receive subsidies for what they produce．
c．It has met the clear demand for energy．
d．It has brought subsidies for some power companies．
e．It is cheaper than burning fossil fuels．
A．a(chǎn)，b，c   B．b，c，d    C．c，d，e   D．d，e，a
69．For coal-fired power stations，C．
A．more effective ways to use biomass have been tried
B．using renewable energy has become their daily task
C．burning biomass alone would require considerable changes
D．setting up dependable supply channels needs governments'support
70．What is the author's attitude towards biomass fuels？A
A．Objective．B．Sceptical．C．Disapproving．D．Defensive．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

8．-What is a left-luggage office？
-It is a place where luggage       be left for a certain period of time，especially at a bus or a train station．（　�。�
A．canB．shouldC．mustD．will

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

18．-Let's try to get two seats near the stage．
-Listen，we will be lucky enough ______ we can get any tickets．（　�。�
A．tillB．ifC．sinceD．though

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

5．Walking outdoors is of greatbenefit（益處）to our health．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

15．Two-thirds of the world's major rivers have now been disrupted（中斷）with more than 50，000 dams in an attempt to stole water and provide power．In the US，there are more than 85，000 dams，disrupting large and small rives，and in most cases transforming natural flow．The most famous of these，the Hoover Dam，constructed in the l930's，is mainly responsible for the fact that the Colorado River no longer reaches the ocean．
    Dams，besides all their attractive benefits，also have negative impacts．Creating a reservoir means a large area must be flooded．Communities may lose their land，houses and culturally impotent sites．
    Environmentally，the new reservoir can be a paradise for wildlife，especially birds．However，it can cause greenhouse gas emissions（排放）and poison the water for fish．Also，the dramatic rise and fall of water levels during dam releases is too extreme for plains and animals to cope with，resulting in dead zones around the shores of reservoirs．Fish that lay their eggs in the shallows，for example，may find a few hours later that those sites are high and dry．
    Dams don't just block water flow．They also prevent fish migrations，and are a barrier to sediment （沉淀物）flows．Instead of rushing downriver，sediments get backed up against the dam wall，which cause the reservoir level to increase over time．However，sediments which are rich in nutrients have become a problem．The fertility of the entire system can be influenced，with soils lost during seasonal rains not being replaced．
     Perhaps the biggest problem can be seen in deltas（三角洲），often host to large cities，which are sinking into the oceans．Groundwater is being extracted to feed the city，causing the urban weight to sink and sediments washed away by the ocean are no longer being replaced．The result is that sea level rise in cities from Shanghai to Alexandria．
51．What effects does creating a reservoir have on people's life？D
  a．People will see fewer birds near the rivers．
  b．Farmers below the dam may have less water to irrigate their fields
  c．Visitors can't see some cultural relics anymore．
  d．More conflicts and wars over water will break out
  e．More kinds of fish will become extinct in the future
  A．a(chǎn)，c    B．c，e    C．b，e   D．b，c
52．With many dams built across rivers，fish willB
  A．find more places to lay their eggs    B．face a more dangerous living habitat
  C．feed on more sediment rich in nutrients D．find it easier to deal with the rise of water
53．How can dams influence the cities like Shanghai？C
  A．Its entire system will be influenced．    B．The rainy season will last longer．
  C．It will lie below sea level in the future   D．Rich soils will be washed away
54．What does the text mainly talk about？A
  A．Environmental loss of dams．B．Cultural loss of dams
  C．Economical gain of dams      D．Environmental benefits of dams
55．Where can we most probably read this passage？C
    A．In a travel magazine     B．In a personal diary
    C．In a science report       D．In a biology textbook．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

16．-Did you ________ the speech the visiting scholar made yesterday？
-Not really．He spoke with an Australian accent and a bit too fast for me．（　�。�
A．bring inB．take inC．turn inD．break in

查看答案和解析>>

同步練習冊答案