夏日的雨后，大(1)班幼儿来到户外准备做操，发现地上爬了几只蜗牛，都纷纷蹲下来看，音乐声响起，幼儿小心翼翼地站在操场上做操，互相提醒别踩到蜗牛了，做完操后，有的幼儿提议要救救蜗牛，还有的幼儿提出要捉几只蜗牛到班里养着。
“蜗牛有嘴吗？”“有脚没有？”“喜欢吃什么？”“它能走曲线吗？”“是公的？还是母的？”幼儿提出了很多问题，李老师也表现出很感兴趣的样子和幼儿一起讨论，李老师说：“宝贝们真棒！提出了这么多有趣的问题，不过，老师也不知道答案，但是老师很愿意和大家一起学习，我们想想，怎么可以获得答案呢？”“看书！”“问爸爸妈妈！”……小朋友纷纷回答，李老师高兴地说：“好，我们分头行动！”于是，李老师用瓶子装着蜗牛带到班里，养蜗牛的行动开始了。
之后的一段时间里，李老师找来关于蜗牛的科普视频和孩子们一起观看，同孩子们一道观察，记录蜗牛的生活，并一起围绕蜗牛“吃什么？”“怎么睡觉？”等问题查阅资料，分享资料……以“蜗牛”为主题的系列活动陆续在班里开展起来。
问题
请结合材料，从教师观角度评析李老师的教育行为。
1.教师由知识的传授者转变为学生学习的引导者和学生发展的促进者。材料中的李老师在幼儿提出与蜗牛相关的问题后，没有直接告诉幼儿答案，而是引导幼儿积极思考，并引导幼儿找解决问题的方法，与幼儿一起探讨。
2.教师从课程的忠实执行者转变为课程的建设者和开发者。材料中的李老师没有因循守旧按照既定的课程实施教学，而是按照幼儿的问题进行针对性的教学，找到适合的教学方法。
3.教师要从“教书匠”转变为教育教学的研究者和反思的实践者。李老师在针对幼儿关于蜗牛的问题，在教学中拓展各种途径进行教学，观察记录，视频，和幼儿查阅资料。是教育教学的研究者。
4.教师要从学校的教师转变为社区型的开放的教师。李老师在活动中针对孩子们关于蜗牛的问题，引导幼儿寻找解决问题的途径，可以查阅资料，询问家长。在教育中结合家庭，学校等教育力量共同的努力。
Passage 1
These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they?use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the?water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or?CFCs,that are believed to damage the Earth′s ozone layer.Recently,though,a system has been?built in the city of Toronto,Canada,that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings,water is pumped?through the building in a continuous cycle.The water is first cooled to a temperature of 4℃in?machines called chillers.It is then sent to individual units that cool the air in each room.As the?water flows through the building,it gradually becomes warmer.Finally,it reaches the roof,where it?is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle?begins again.
Toronto lies on the shore of Lake Ontario,one of North America′s Great Lakes,and the new?system makes use of cold water taken from about 80 meters below the surface of the lake.At this?depth,the water in the lake remains at 4℃all year round.This is exactly the temperature to which?the water in air-conditioning systems is cooled.However,the water from the lake is not pumped?directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside?the air-conditioning systems.After that,the lake water is added to the city′s ordinary water supply.
Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent?less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused?to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like?the one being used in Toronto could be built elsewhere by using other natural sources of cold water.
Which of the following is true?查看材料
Passage 1
These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they?use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the?water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or?CFCs,that are believed to damage the Earth′s ozone layer.Recently,though,a system has been?built in the city of Toronto,Canada,that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings,water is pumped?through the building in a continuous cycle.The water is first cooled to a temperature of 4℃in?machines called chillers.It is then sent to individual units that cool the air in each room.As the?water flows through the building,it gradually becomes warmer.Finally,it reaches the roof,where it?is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle?begins again.
Toronto lies on the shore of Lake Ontario,one of North America′s Great Lakes,and the new?system makes use of cold water taken from about 80 meters below the surface of the lake.At this?depth,the water in the lake remains at 4℃all year round.This is exactly the temperature to which?the water in air-conditioning systems is cooled.However,the water from the lake is not pumped?directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside?the air-conditioning systems.After that,the lake water is added to the city′s ordinary water supply.
Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent?less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused?to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like?the one being used in Toronto could be built elsewhere by using other natural sources of cold water.
What is one advantage of Enwave′s new system?查看材料
Passage 1
These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they?use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the?water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or?CFCs,that are believed to damage the Earth′s ozone layer.Recently,though,a system has been?built in the city of Toronto,Canada,that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings,water is pumped?through the building in a continuous cycle.The water is first cooled to a temperature of 4℃in?machines called chillers.It is then sent to individual units that cool the air in each room.As the?water flows through the building,it gradually becomes warmer.Finally,it reaches the roof,where it?is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle?begins again.
Toronto lies on the shore of Lake Ontario,one of North America′s Great Lakes,and the new?system makes use of cold water taken from about 80 meters below the surface of the lake.At this?depth,the water in the lake remains at 4℃all year round.This is exactly the temperature to which?the water in air-conditioning systems is cooled.However,the water from the lake is not pumped?directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside?the air-conditioning systems.After that,the lake water is added to the city′s ordinary water supply.
Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent?less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused?to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like?the one being used in Toronto could be built elsewhere by using other natural sources of cold water.
What happens in the end to the water from Lake Ontario?查看材料
Passage 1
These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they?use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the?water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or?CFCs,that are believed to damage the Earth′s ozone layer.Recently,though,a system has been?built in the city of Toronto,Canada,that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings,water is pumped?through the building in a continuous cycle.The water is first cooled to a temperature of 4℃in?machines called chillers.It is then sent to individual units that cool the air in each room.As the?water flows through the building,it gradually becomes warmer.Finally,it reaches the roof,where it?is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle?begins again.
Toronto lies on the shore of Lake Ontario,one of North America′s Great Lakes,and the new?system makes use of cold water taken from about 80 meters below the surface of the lake.At this?depth,the water in the lake remains at 4℃all year round.This is exactly the temperature to which?the water in air-conditioning systems is cooled.However,the water from the lake is not pumped?directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside?the air-conditioning systems.After that,the lake water is added to the city′s ordinary water supply.
Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent?less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused?to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like?the one being used in Toronto could be built elsewhere by using other natural sources of cold water.
What is the function of the chillers in a traditional air-conditioning system?查看材料
Passage 1
These days,many large city buildings are equipped with their own air-conditioning systems.These systems help keep the buildings cool,but they can also damage the environment.Since they?use a lot of electricity,for instance,they contribute indirectly to global warming.In addition,the?water that flows through the systems is often cooled using chemicals called chlorofluorocarbons,or?CFCs,that are believed to damage the Earth′s ozone layer.Recently,though,a system has been?built in the city of Toronto,Canada,that cools buildings with little damage to the environment.
In the traditional air-conditioning systems found in most large buildings,water is pumped?through the building in a continuous cycle.The water is first cooled to a temperature of 4℃in?machines called chillers.It is then sent to individual units that cool the air in each room.As the?water flows through the building,it gradually becomes warmer.Finally,it reaches the roof,where it?is left to cool down naturally in a water tower.After that it is returned to the chillers,where the cycle?begins again.
Toronto lies on the shore of Lake Ontario,one of North America′s Great Lakes,and the new?system makes use of cold water taken from about 80 meters below the surface of the lake.At this?depth,the water in the lake remains at 4℃all year round.This is exactly the temperature to which?the water in air-conditioning systems is cooled.However,the water from the lake is not pumped?directly into the air-conditioning systems.Instead,it is used to cool the water that is already inside?the air-conditioning systems.After that,the lake water is added to the city′s ordinary water supply.
Enwave,the company that developed this deep-lake cooling system,says that it uses 75 percent?less energy than traditional air conditioning.And since no CFCs are used,no damage can be caused?to the ozone layer.Not every city is located next to a large lake,but experts believe that systems like?the one being used in Toronto could be built elsewhere by using other natural sources of cold water.
What is one problem with traditional air-conditioning systems?查看材料
Passage 2
When Liam McGee departed as president of Bank of America in August,his explanation was?surprisingly straight up．Rather than cloaking his exit in the usual vague excuses,he came right out?and said he was leaving"to pursue my goal of running a company,"Broadcasting his ambition was"very much my decision,"McGee says．Within two weeks,he was talking for the first time with the?board of Hartford Financial Services Group,which named him CEO and chairman on September 29．
McGee says leaving without a position lined up gave him time to reflect on what kind of?company he wanted to run．It also sent a clear message to the outside world about his aspirations．And McGee isn′t alone．In recent weeks the No．2 executives at Avon and American Express quit?with the explanation that they were looking for a CEO post．As boards-scrutinize succession plans in?response to shareholder pressure,executives who don′t get the nod also may wish to move on．A?turbulent business environment also has senior managers cautious of letting vague pronouncements?cloud their reputations．
As the first signs of recovery begin to take hold,deputy chiefs may be more willing to make the?jump without a net．In the third quarter,CEO turnover was down 23%from a year ago as nervous?boards stuck with the leaders they had,according to Liberum Research．As the economy picks up,opportunities will abound for aspiring leaders．
The decision to quit a senior position to look for a better one is unconventional．For years?executives and headhunters have adhered to the rule that the most attractive CEO candidates are the?ones who must be poached．Says Korn/Ferry senior partner Dennis Carey:"I can′t think of a single?search I′ve done where a board has not instructed me to look at sitting CEOs first．"
Those who jumped without a job haven′t always landed in top positions quickly．Ellen Marram?quit as chief of Tropicana a decade age,saying she wanted to be a CEO．It was a year before she?became head of a tiny Internet-based commodities exchange．Robert Willumstad left Citigroup in?2005 with ambitions to be a CEO．He finally took that post at a major financial institution three?years later．
Many recruiters say the old disgrace is fading for top performers．The financial crisis has made?it more acceptable to be between jobs or to leave a bad one．"The traditional rule was it′s safer to?stay where you are,but that′s been fundamentally inverted,"says one headhunter．"The people?who′ve been hurt the worst are those who′ve stayed too long．"
Which of the following is the best title for the text?查看材料
Passage 2
When Liam McGee departed as president of Bank of America in August,his explanation was?surprisingly straight up．Rather than cloaking his exit in the usual vague excuses,he came right out?and said he was leaving"to pursue my goal of running a company,"Broadcasting his ambition was"very much my decision,"McGee says．Within two weeks,he was talking for the first time with the?board of Hartford Financial Services Group,which named him CEO and chairman on September 29．
McGee says leaving without a position lined up gave him time to reflect on what kind of?company he wanted to run．It also sent a clear message to the outside world about his aspirations．And McGee isn′t alone．In recent weeks the No．2 executives at Avon and American Express quit?with the explanation that they were looking for a CEO post．As boards-scrutinize succession plans in?response to shareholder pressure,executives who don′t get the nod also may wish to move on．A?turbulent business environment also has senior managers cautious of letting vague pronouncements?cloud their reputations．
As the first signs of recovery begin to take hold,deputy chiefs may be more willing to make the?jump without a net．In the third quarter,CEO turnover was down 23%from a year ago as nervous?boards stuck with the leaders they had,according to Liberum Research．As the economy picks up,opportunities will abound for aspiring leaders．
The decision to quit a senior position to look for a better one is unconventional．For years?executives and headhunters have adhered to the rule that the most attractive CEO candidates are the?ones who must be poached．Says Korn/Ferry senior partner Dennis Carey:"I can′t think of a single?search I′ve done where a board has not instructed me to look at sitting CEOs first．"
Those who jumped without a job haven′t always landed in top positions quickly．Ellen Marram?quit as chief of Tropicana a decade age,saying she wanted to be a CEO．It was a year before she?became head of a tiny Internet-based commodities exchange．Robert Willumstad left Citigroup in?2005 with ambitions to be a CEO．He finally took that post at a major financial institution three?years later．
Many recruiters say the old disgrace is fading for top performers．The financial crisis has made?it more acceptable to be between jobs or to leave a bad one．"The traditional rule was it′s safer to?stay where you are,but that′s been fundamentally inverted,"says one headhunter．"The people?who′ve been hurt the worst are those who′ve stayed too long．"
It can be inferred from the last paragraph that___________．查看材料
Passage 2
When Liam McGee departed as president of Bank of America in August,his explanation was?surprisingly straight up．Rather than cloaking his exit in the usual vague excuses,he came right out?and said he was leaving"to pursue my goal of running a company,"Broadcasting his ambition was"very much my decision,"McGee says．Within two weeks,he was talking for the first time with the?board of Hartford Financial Services Group,which named him CEO and chairman on September 29．
McGee says leaving without a position lined up gave him time to reflect on what kind of?company he wanted to run．It also sent a clear message to the outside world about his aspirations．And McGee isn′t alone．In recent weeks the No．2 executives at Avon and American Express quit?with the explanation that they were looking for a CEO post．As boards-scrutinize succession plans in?response to shareholder pressure,executives who don′t get the nod also may wish to move on．A?turbulent business environment also has senior managers cautious of letting vague pronouncements?cloud their reputations．
As the first signs of recovery begin to take hold,deputy chiefs may be more willing to make the?jump without a net．In the third quarter,CEO turnover was down 23%from a year ago as nervous?boards stuck with the leaders they had,according to Liberum Research．As the economy picks up,opportunities will abound for aspiring leaders．
The decision to quit a senior position to look for a better one is unconventional．For years?executives and headhunters have adhered to the rule that the most attractive CEO candidates are the?ones who must be poached．Says Korn/Ferry senior partner Dennis Carey:"I can′t think of a single?search I′ve done where a board has not instructed me to look at sitting CEOs first．"
Those who jumped without a job haven′t always landed in top positions quickly．Ellen Marram?quit as chief of Tropicana a decade age,saying she wanted to be a CEO．It was a year before she?became head of a tiny Internet-based commodities exchange．Robert Willumstad left Citigroup in?2005 with ambitions to be a CEO．He finally took that post at a major financial institution three?years later．
Many recruiters say the old disgrace is fading for top performers．The financial crisis has made?it more acceptable to be between jobs or to leave a bad one．"The traditional rule was it′s safer to?stay where you are,but that′s been fundamentally inverted,"says one headhunter．"The people?who′ve been hurt the worst are those who′ve stayed too long．"
The word"poached"(Para．4)most probably means___________．查看材料
Passage 2
When Liam McGee departed as president of Bank of America in August,his explanation was?surprisingly straight up．Rather than cloaking his exit in the usual vague excuses,he came right out?and said he was leaving"to pursue my goal of running a company,"Broadcasting his ambition was"very much my decision,"McGee says．Within two weeks,he was talking for the first time with the?board of Hartford Financial Services Group,which named him CEO and chairman on September 29．
McGee says leaving without a position lined up gave him time to reflect on what kind of?company he wanted to run．It also sent a clear message to the outside world about his aspirations．And McGee isn′t alone．In recent weeks the No．2 executives at Avon and American Express quit?with the explanation that they were looking for a CEO post．As boards-scrutinize succession plans in?response to shareholder pressure,executives who don′t get the nod also may wish to move on．A?turbulent business environment also has senior managers cautious of letting vague pronouncements?cloud their reputations．
As the first signs of recovery begin to take hold,deputy chiefs may be more willing to make the?jump without a net．In the third quarter,CEO turnover was down 23%from a year ago as nervous?boards stuck with the leaders they had,according to Liberum Research．As the economy picks up,opportunities will abound for aspiring leaders．
The decision to quit a senior position to look for a better one is unconventional．For years?executives and headhunters have adhered to the rule that the most attractive CEO candidates are the?ones who must be poached．Says Korn/Ferry senior partner Dennis Carey:"I can′t think of a single?search I′ve done where a board has not instructed me to look at sitting CEOs first．"
Those who jumped without a job haven′t always landed in top positions quickly．Ellen Marram?quit as chief of Tropicana a decade age,saying she wanted to be a CEO．It was a year before she?became head of a tiny Internet-based commodities exchange．Robert Willumstad left Citigroup in?2005 with ambitions to be a CEO．He finally took that post at a major financial institution three?years later．
Many recruiters say the old disgrace is fading for top performers．The financial crisis has made?it more acceptable to be between jobs or to leave a bad one．"The traditional rule was it′s safer to?stay where you are,but that′s been fundamentally inverted,"says one headhunter．"The people?who′ve been hurt the worst are those who′ve stayed too long．"
According to Paragraph 2,senior executives′quitting may be spurred by__________．查看材料
Passage 2
When Liam McGee departed as president of Bank of America in August,his explanation was?surprisingly straight up．Rather than cloaking his exit in the usual vague excuses,he came right out?and said he was leaving"to pursue my goal of running a company,"Broadcasting his ambition was"very much my decision,"McGee says．Within two weeks,he was talking for the first time with the?board of Hartford Financial Services Group,which named him CEO and chairman on September 29．
McGee says leaving without a position lined up gave him time to reflect on what kind of?company he wanted to run．It also sent a clear message to the outside world about his aspirations．And McGee isn′t alone．In recent weeks the No．2 executives at Avon and American Express quit?with the explanation that they were looking for a CEO post．As boards-scrutinize succession plans in?response to shareholder pressure,executives who don′t get the nod also may wish to move on．A?turbulent business environment also has senior managers cautious of letting vague pronouncements?cloud their reputations．
As the first signs of recovery begin to take hold,deputy chiefs may be more willing to make the?jump without a net．In the third quarter,CEO turnover was down 23%from a year ago as nervous?boards stuck with the leaders they had,according to Liberum Research．As the economy picks up,opportunities will abound for aspiring leaders．
The decision to quit a senior position to look for a better one is unconventional．For years?executives and headhunters have adhered to the rule that the most attractive CEO candidates are the?ones who must be poached．Says Korn/Ferry senior partner Dennis Carey:"I can′t think of a single?search I′ve done where a board has not instructed me to look at sitting CEOs first．"
Those who jumped without a job haven′t always landed in top positions quickly．Ellen Marram?quit as chief of Tropicana a decade age,saying she wanted to be a CEO．It was a year before she?became head of a tiny Internet-based commodities exchange．Robert Willumstad left Citigroup in?2005 with ambitions to be a CEO．He finally took that post at a major financial institution three?years later．
Many recruiters say the old disgrace is fading for top performers．The financial crisis has made?it more acceptable to be between jobs or to leave a bad one．"The traditional rule was it′s safer to?stay where you are,but that′s been fundamentally inverted,"says one headhunter．"The people?who′ve been hurt the worst are those who′ve stayed too long．"
When McGee announced his departure,his manner can best be described as being__________．查看材料
