2020届高考艺考(艺术生)英语复习作业：选修七Unit 3 Under the sea
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3．According to the text, the great changes of Alaska's Arctic lakes ________.
A．are totally beyond Surdu's expectations
B．are completely within Surdu's expectations
18 days earlier in the winter of 2011 compared with the winter of 1950.“The changes in ice and
the shortened winter affect Northern communities that depend on ice roads to transport goods，”
1950? A．6 days.
B．12 days.
C．18 days.
D．24 days.
解析：D [细节理解题。根据第四段第一句话“The climate models suggest the Arctic
lakes froze almost six days later and broke up about 18 days earlier in the winter of 2011
given you a(n) __7__to help a boy，but you __8__it.There's a possibility that God was
__9__you；maybe today would have become your big day of your life.Hearing Gur's
C．Arctic lakes are losing ice.
D．Arctic lakes hold more flesh water than before.
解析：C [主旨大意题。根据第一段第一句话，特别注意 find, show, suggest 等词后的
宾语从句。]
2．What can we infer the North Slope is dotted with?
On that day Sonia learnt the biggest __16__ in her life.Actually not only Sonia，but many of us ignore the chance of helping in __17__ ways because we always run after bigger ones.However，big opportunities do come but not every day.Therefore，__18__ small ones so
[语篇导读] 近北冰洋地区的湖泊冰层日渐消融，引起科学家的关注。
1．What does the text mainly tell us?
A．Arctic lakes now freeze earlier and melt later.
B．Alaska's local warming is decreasing sharply.
C．come as no surprise to Surdu and her coauthors
D．come as a great excitement to Surdu
解析：A [细节理解题。根据第三段首句中的 shocked 可判断答案选 A。]
4．How many days was the winter ice season of Arctic lakes in 2011 shorter than that in
[能力提升] Ⅰ.阅读理解 Alaska's Arctic lakes now freeze later and melt earlier in the year than in 1950, leaving them easy to suffer water loss from evaporation(蒸发) and possibly adding to local warming, a new study finds.The winter ice season near Barrow, Alaska, is shorter than in 1950, researchers reported Jan.30 in the journal The Cryosphere. Lake ice is also thinner each winter.The scientists surveyed 402 lakes on the North Slope, where permafrost (permanently frozen ground) and shallow lakes dominate the area.In 2011, the lake ice was 38 percent thinner than in 1950, and 22 percent fewer lakes froze through to their bottoms. “When we saw the actual numbers we were shocked at how dramatic the change has been，” lead study author Cristina Surdu, of the University of Waterloo in Canada, said in a statement.Surdu and her coauthors analyzed the changes in lakeice thickness and ice cover with satellite images and climate model simulations (satellite images are only available from 1991)． The climate models suggest the Arctic lakes froze almost six days later and broke up about
[基础巩固] 单句语法填空 1．We were fortunate enough to find the post office as soon as we got off the bus；it was just opposite to the bus stop. 2．The music plays for 15 minutes at a time，with a few short pauses (pause) in between. 3．To everyone's surprise，the CEO fled (flee) to the US，leaving his company in a mess. 4．I was too scared (scare) to go into the water even though they tried to persuade me several times. 5．—Where do you plan to work? —I've made up my mind to go where I'm most needed. 6．Do you need anyone to help out in the shop？I'm looking for a parttime job. 7．The villagers planned to deepen (deep) the well so as to get more water from it. 8．The truck was found abandoned (abandon) by the side of a rural road late the next day. 9．Over the past 40 years，China has_witnessed (witness) dramatic changes. 10．When the time came to make the final decision for a course，I decided to apply for the one that reflected (reflect) my interest.
Surdu said.For example, every winter, oil companies build roads over frozen lakes to carry supplies to Prudhoe Bay.
“The dramatic changes in lake ice may also contribute to further warming of the entire
A．thick forests.
B．numerous lakes.
C．green grasslands.
D．fertilized farmlands.
解析：B [推理判断题，根据第二段第二句话可知“The scientists surveyed 402 lakes on
the North Slope, where permafrost (permanently frozen ground) and shallow lakes dominaLeabharlann Baidue the area.”]
region, because open water on lakes contributes to warmer air temperatures，” Surdu said.The
Arctic is warming twice as fast as the rest of the planet, for reasons that may include its layered atmosphere, which traps heat, and the loss of sea ice and snow cover, which help reflect the sun's energy when present.
compared with the winter of 1950.”晚结冰六天，早融化 18 天，那么北极湖泊的结冰季节
2011 年比 1950 年一共就少了 24 天，故选 D。]
Ⅱ.完形填空 One small mistake changed Sonia's life.Now she is __1__ and tries not to miss any opportunities that come to her way. One day，Sonia walked __2__a little boy，who wanted to buy crayons(彩色蜡笔)，but he couldn't __3__them.He looked sad when he saw the money in Sonia's hand.__4__ she didn't realize he was in __5__ of help at all.Sonia ignored him and __6__ on her way home. After reaching home，she told everything to her brother Gur.Gur told Sonia that God had
words，Sonia __10__back to the shop to find the boy but time never __11__ for anyone.Sonia got
disappointed and returned home，continuously __12__at herself.Why didn't it come into her mind
what Gur had __13__？“Chances are everywhere，and all you need to do is __14__them
because they don't always show up，”said Gur.Now what Sonia has missed is a chance that she can only __15__.
A．are totally beyond Surdu's expectations
B．are completely within Surdu's expectations
18 days earlier in the winter of 2011 compared with the winter of 1950.“The changes in ice and
the shortened winter affect Northern communities that depend on ice roads to transport goods，”
1950? A．6 days.
B．12 days.
C．18 days.
D．24 days.
解析：D [细节理解题。根据第四段第一句话“The climate models suggest the Arctic
lakes froze almost six days later and broke up about 18 days earlier in the winter of 2011
given you a(n) __7__to help a boy，but you __8__it.There's a possibility that God was
__9__you；maybe today would have become your big day of your life.Hearing Gur's
C．Arctic lakes are losing ice.
D．Arctic lakes hold more flesh water than before.
解析：C [主旨大意题。根据第一段第一句话，特别注意 find, show, suggest 等词后的
宾语从句。]
2．What can we infer the North Slope is dotted with?
On that day Sonia learnt the biggest __16__ in her life.Actually not only Sonia，but many of us ignore the chance of helping in __17__ ways because we always run after bigger ones.However，big opportunities do come but not every day.Therefore，__18__ small ones so
[语篇导读] 近北冰洋地区的湖泊冰层日渐消融，引起科学家的关注。
1．What does the text mainly tell us?
A．Arctic lakes now freeze earlier and melt later.
B．Alaska's local warming is decreasing sharply.
C．come as no surprise to Surdu and her coauthors
D．come as a great excitement to Surdu
解析：A [细节理解题。根据第三段首句中的 shocked 可判断答案选 A。]
4．How many days was the winter ice season of Arctic lakes in 2011 shorter than that in
[能力提升] Ⅰ.阅读理解 Alaska's Arctic lakes now freeze later and melt earlier in the year than in 1950, leaving them easy to suffer water loss from evaporation(蒸发) and possibly adding to local warming, a new study finds.The winter ice season near Barrow, Alaska, is shorter than in 1950, researchers reported Jan.30 in the journal The Cryosphere. Lake ice is also thinner each winter.The scientists surveyed 402 lakes on the North Slope, where permafrost (permanently frozen ground) and shallow lakes dominate the area.In 2011, the lake ice was 38 percent thinner than in 1950, and 22 percent fewer lakes froze through to their bottoms. “When we saw the actual numbers we were shocked at how dramatic the change has been，” lead study author Cristina Surdu, of the University of Waterloo in Canada, said in a statement.Surdu and her coauthors analyzed the changes in lakeice thickness and ice cover with satellite images and climate model simulations (satellite images are only available from 1991)． The climate models suggest the Arctic lakes froze almost six days later and broke up about
[基础巩固] 单句语法填空 1．We were fortunate enough to find the post office as soon as we got off the bus；it was just opposite to the bus stop. 2．The music plays for 15 minutes at a time，with a few short pauses (pause) in between. 3．To everyone's surprise，the CEO fled (flee) to the US，leaving his company in a mess. 4．I was too scared (scare) to go into the water even though they tried to persuade me several times. 5．—Where do you plan to work? —I've made up my mind to go where I'm most needed. 6．Do you need anyone to help out in the shop？I'm looking for a parttime job. 7．The villagers planned to deepen (deep) the well so as to get more water from it. 8．The truck was found abandoned (abandon) by the side of a rural road late the next day. 9．Over the past 40 years，China has_witnessed (witness) dramatic changes. 10．When the time came to make the final decision for a course，I decided to apply for the one that reflected (reflect) my interest.
Surdu said.For example, every winter, oil companies build roads over frozen lakes to carry supplies to Prudhoe Bay.
“The dramatic changes in lake ice may also contribute to further warming of the entire
A．thick forests.
B．numerous lakes.
C．green grasslands.
D．fertilized farmlands.
解析：B [推理判断题，根据第二段第二句话可知“The scientists surveyed 402 lakes on
the North Slope, where permafrost (permanently frozen ground) and shallow lakes dominaLeabharlann Baidue the area.”]
region, because open water on lakes contributes to warmer air temperatures，” Surdu said.The
Arctic is warming twice as fast as the rest of the planet, for reasons that may include its layered atmosphere, which traps heat, and the loss of sea ice and snow cover, which help reflect the sun's energy when present.
compared with the winter of 1950.”晚结冰六天，早融化 18 天，那么北极湖泊的结冰季节
2011 年比 1950 年一共就少了 24 天，故选 D。]
Ⅱ.完形填空 One small mistake changed Sonia's life.Now she is __1__ and tries not to miss any opportunities that come to her way. One day，Sonia walked __2__a little boy，who wanted to buy crayons(彩色蜡笔)，but he couldn't __3__them.He looked sad when he saw the money in Sonia's hand.__4__ she didn't realize he was in __5__ of help at all.Sonia ignored him and __6__ on her way home. After reaching home，she told everything to her brother Gur.Gur told Sonia that God had
words，Sonia __10__back to the shop to find the boy but time never __11__ for anyone.Sonia got
disappointed and returned home，continuously __12__at herself.Why didn't it come into her mind
what Gur had __13__？“Chances are everywhere，and all you need to do is __14__them
because they don't always show up，”said Gur.Now what Sonia has missed is a chance that she can only __15__.