5 / 5
Section Ⅳ “Developing ideas”的课文习读环节
文意整体把握
Ⅰ.理清文脉结构
Ⅱ.把握主旨大意
1.What's the main idea of the passage？( )
A．Why humans cannot live on Earth.
B．How to live in harmony with nature.
C．The feasibility (可行性) study of living on Mars.
D．It's impossible to live on Mars.
2．Choose the magazine in which you would most likely find this passage.( )
A．The Traveller
B．All About Space
C．Environmental Concerns
D．Biology for Fun.
文意深度理解
(一)阅读理解
1．What is the greatest risk to life on Earth at present？( )
A．Nuclear missiles.
B．Environmental problems.
C．Shortage of resources.
D．Natural disasters.
2．Why is Mars the most likely planet for humans to live on？( )
A．It is fascinating.
B．It is called the Red Planet.
C．It is close to Earth and has a better environment than other planets.
D．It is convenient for humans to live on.
3．Our probes and robots can do the following tasks EXCEPT________.( )
A．providing food for astronauts
B．sending back valuable data and stunning images
C．testing the soil
D．searching for resources, water and signs of life
4．Why does the author mention the Biosphere 2 experiment and the recent achievements of scientists？( )
A．To indicate how difficult it is to reach Mars.
B．To introduce the progress that scientists have made on the research of Mars.
C．To tell us that settlers are not able to return to Earth.
D．To illustrate that staying alive on Mars is not impossible.
5．In the author's opinion, what should we humans do at present？( )
A．To settle on Mars.
B．To do more scientific research on Mars.
C．To take much better care of Earth.
D．To grow plants on Mars.
(二)阅读表达
1．Do you think whether the dream of living on Mars come true Can you give your reasons
2．Which is better, to live on Mars or to solve earth's problems？Why
|阅|读|技|能|提|升|
根据标题猜主旨
本文是一篇杂志文章，属于说明文。课文标题“Plan B：Life on Mars？”直接点明了文章的主题“是否能在火星上生活”。标题是文章中很重要的部分，文章内容、作品风格和写作意图都可以通过标题展示出来，标题还高度浓缩地对文章进行了概括。因此在阅读中，对于标题一定要给予足够的重视，这有助于我们读懂文章，把握主旨。
(一)赏用词之妙
1．In the 1960s and 1970s, the greatest fear was that the human race, and possibly all advanced life forms on the planet, could be wiped out by nuclear missiles, just at the push of a button.
赏析：介词短语“just at the push of a button”用得恰到好处，其中just 用词形象、直观，凸显了核武器对世界的威胁。
2．Mars has fascinated people since ancient times, and today our interest in Martian exploration is greater than ever before.
赏析：本句中的fascinate用词精妙、生动，且表意丰富，准确地描述了人类对火星的关注和向往。
3．Our probes have orbited the planet, sending back valuable data and stunning images.
赏析：本句中的stunning意为“令人惊奇的”，强调了探测器拍摄的图像的清晰和其宝贵的价值。此外，stunning还意为“极具吸引力的”。
4．The “closed” concept meant that the space was designed to function with its own oxygen, food and water, needing nothing from the outside world.
赏析：本句中的function在此为名词用作动词，表示“起作用，正常工作，运转”，令表达更形象、生动。
①He decorated the room in just three days.
________________________________________________________________________
②The beauty of the West Lake fascinates me.
________________________________________________________________________
③A viewing platform gave stunning views over the valley.
________________________________________________________________________
④The sofa also functions as a bed.
________________________________________________________________________
(二)赏句式之高
1．There is no doubt that humankind is drawn towards Mars, with dreams of making it our second home.
赏析：there is no doubt that句式写出了人类对火星的向往，with介词短语及动名词短语making ...(make复合结构)的运用，简明扼要地描述了人类期待去火星生活的梦想。
2．Encouraged by discoveries over the years, space agencies of various countries are planning manned missions to Mars that could take place within the next 25 years.
赏析：句首过去分词短语Encouraged by ...交代了planning manned missions to Mars的背景，后面that引导的同位语从句则具体介绍了这一计划的实施年限。
①______________________________________________________ within two hours.
毫无疑问，我能在两个小时内完成这项任务。
②________________________， she continued with the experiment.
在老师的鼓励下，她继续做这个实验。
(三)赏衔接之顺
For now，human settlement of Mars is still decades away.In the meantime，scientific research shows that the planet Earth is getting warmer.This change is being caused by human activity and is having a terrible effect on the biosphere.Until we are finally able to live on another planet, we need to take much better care of our own.Right now, it's the only one we have!
赏析：本句中For now起到了承上启下的作用，与第一段、第三段开头的时间表达相呼应，使段落之间的意义更加连贯。In the meantime 及Until进一步解释了地球环境的现状并呼吁保护地球，最后的Right now与段首的For now相呼应，强调了保护地球的重要性。
①______________， I have not received an invitation from him.
但是迄今为止，我还没有收到他的邀请。
②Our new office won't be ready for a few weeks._________________， we'll work from home.
我们的新办公室还需要几周时间才能准备好，与此同时，我们会在家工作。
Section Ⅳ
NO.1 精阅读
文意整体把握
Ⅰ.①environmental problems ②has fascinated ③less hostile
④unmanned spacecraft ⑤impossible ⑥take much better care of
Ⅱ.1.C 2.C
文意深度理解
(一)1～5 BCADC
(二)1.I think the dream of living on Mars will come true sooner or later, because recently the scientists have succeeded in growing plants in an environment similar to that on Mars.If plants can grow on Mars, then they can provide oxygen for humans to live.
2．As far as I am concerned, at present to solve earth's problems is better, because to live on Mars is still decades away.If we can't take effective measures to solve the earth's problems, humans might get into trouble before the dream of living on Mars comes true.
NO.2 美表达
(一)①他仅仅花了3天时间装饰了这间房子。
②西湖的美景令我着迷。 ③从观景台可以俯瞰山谷壮丽的风景。
④这沙发还可当床用。
(二)①There is no doubt that I can finish the task
②Encouraged by the teacher
(三)①But for now ②In the meantime(共50张PPT)
Section Ⅳ
“Developing ideas”的课文习读环节
NO 1
精阅读/提升阅读“理解力”
NO 2
美表达/强化写作“基本功”
NO 3
课时跟踪检测
目 录
No.1 精阅读/提升阅读“理解力”
文意整体把握
Ⅰ.理清文脉结构
Ⅱ.把握主旨大意
1.What's the main idea of the passage
A．Why humans cannot live on Earth.
B．How to live in harmony with nature.
C．The feasibility(可行性) study of living on Mars.
D．It's impossible to live on Mars.
√
2．Choose the magazine in which you would most likely find this passage.
A．The Traveller
B．All About Space
C．Environmental Concerns
D．Biology for Fun.
√
(一)阅读理解
1．What is the greatest risk to life on Earth at present
A．Nuclear missiles.
B．Environmental problems.
C．Shortage of resources.
D．Natural disasters.
文意深度理解
√
2．Why is Mars the most likely planet for humans to live on
A．It is fascinating.
B．It is called the Red Planet.
C．It is close to Earth and has a better environment than other planets.
D．It is convenient for humans to live on.
√
3．Our probes and robots can do the following tasks EXCEPT .
A．providing food for astronauts
B．sending back valuable data and stunning images
C．testing the soil
D．searching for resources, water and signs of life
√
4．Why does the author mention the Biosphere 2 experiment and the recent achievements of scientists
A．To indicate how difficult it is to reach Mars.
B．To introduce the progress that scientists have made on the research of Mars.
C．To tell us that settlers are not able to return to Earth.
D．To illustrate that staying alive on Mars is not impossible.
√
5．In the author's opinion, what should we humans do at present
A．To settle on Mars.
B．To do more scientific research on Mars.
C．To take much better care of Earth.
D．To grow plants on Mars.
√
(二)阅读表达
1．Do you think whether the dream of living on Mars come true Can you give your reasons
I think the dream of living on Mars will come true sooner or later, because recently the scientists have succeeded in growing plants in an environment similar to that on Mars.If plants can grow on Mars, then they can provide oxygen for humans to live.
2．Which is better, to live on Mars or to solve earth's problems？Why
As far as I am concerned, at present to solve earth's problems is better, because to live on Mars is still decades away.If we can't take effective measures to solve the earth's problems, humans might get into trouble before the dream of living on Mars comes true.
|阅|读|技|能|提|升|
根据标题猜主旨
本文是一篇杂志文章，属于说明文。课文标题“Plan B：Life on Mars？”直接点明了文章的主题“是否能在火星上生活”。标题是文章中很重要的部分，文章内容、作品风格和写作意图都可以通过标题展示出来，标题还高度浓缩地对文章进行了概括。因此在阅读中，对于标题一定要给予足够的重视，这有助于我们读懂文章，把握主旨。
No.2 美表达/强化写作“基本功”
(一)赏用词之妙
1．In the 1960s and 1970s, the greatest fear was that the human race, and possibly all advanced life forms on the planet, could be wiped out by nuclear missiles, just at the push of a button.
赏析：介词短语“just at the push of a button”用得恰到好处，其中just 用词形象、直观，凸显了核武器对世界的威胁。
2．Mars has fascinated people since ancient times, and today our interest in Martian exploration is greater than ever before.
赏析：本句中的fascinate用词精妙、生动，且表意丰富，准确地描述了人类对火星的关注和向往。
3．Our probes have orbited the planet, sending back valuable data and stunning images.
赏析：本句中的stunning意为“令人惊奇的”，强调了探测器拍摄的图像的清晰和其宝贵的价值。此外，stunning还意为“极具吸引力的”。
4．The “closed” concept meant that the space was designed to function with its own oxygen, food and water, needing nothing from the outside world.
赏析：本句中的function在此为名词用作动词，表示“起作用，正常工作，运转”，令表达更形象、生动。
①He decorated the room in just three days.
②The beauty of the West Lake fascinates me.
③A viewing platform gave stunning views over the valley.
④The sofa also functions as a bed.
仿写训练/翻译句子，注意黑体词的运用
他仅仅花了3天时间装饰了这间房子。
西湖的美景令我着迷。
从观景台可以俯瞰山谷壮丽的风景。
这沙发还可当床用。
(二)赏句式之高
1．There is no doubt that humankind is drawn towards Mars, with dreams of making it our second home.
赏析：there is no doubt that句式写出了人类对火星的向往，with介词短语及动名词短语making ...(make复合结构)的运用，简明扼要地描述了人类期待去火星生活的梦想。
2．Encouraged by discoveries over the years, space agencies of various countries are planning manned missions to Mars that could take place within the next 25 years.
赏析：句首过去分词短语Encouraged by ...交代了planning manned missions to Mars的背景，后面that引导的同位语从句则具体介绍了这一计划的实施年限。
①_____________________________________ within two hours.
毫无疑问，我能在两个小时内完成这项任务。
②_______________________, she continued with the experiment.在老师的鼓励下，她继续做这个实验。
仿写训练/完成句子
There is no doubt that I can finish the task
Encouraged by the teacher
(三)赏衔接之顺
For now，human settlement of Mars is still decades away.In the meantime，scientific research shows that the planet Earth is getting warmer.This change is being caused by human activity and is having a terrible effect on the biosphere.Until we are finally able to live on another planet, we need to take much better care of our own.Right now, it's the only one we have!
赏析：本句中For now起到了承上启下的作用，与第一段、第三段开头的时间表达相呼应，使段落之间的意义更加连贯。In the meantime 及Until进一步解释了地球环境的现状并呼吁保护地球，最后的Right now与段首的For now相呼应，强调了保护地球的重要性。
①___________, I have not received an invitation from him.
但是迄今为止，我还没有收到他的邀请。
②Our new office won't be ready for a few weeks._______________, we'll work from home.
我们的新办公室还需要几周时间才能准备好，与此同时，我们会在家工作。
仿写训练/完成句子
But for now
In the meantime
No.3 课时跟踪检测
Ⅰ.阅读理解
A
When four young children were found after 40 days in the Colombian Amazon forest, the rescuers noticed that the oldest, 13-year-old Lesly Mucutuy, had some seeds hidden between her teeth.
The seeds were from a native Amazon palm tree known as “milpesos” in Colombia.Its fruits are rich in fat and Amazon tribes use them to make a vegetable oil.“She was keeping them so that the warmth of her mouth would open up the seeds and she could feed the pulp (果肉) to her younger sisters and brothers，” said Eliecer Mu oz, one of the four guards who made the very first contact with the children.“That's how they stayed alive.”
Survival experts have been trying to answer this question：How did the four children — the youngest just a baby — survive in the heart of the Amazon rainforest for so long The stretch of the jungle they were found in is one of the most remote and difficult to reach in Colombia, where wild animals and poisonous insects are plentiful, rains can pour for over 15 hours a day and visibility is sometimes limited to 10 meters due to the thick vegetation.In more than a month without adults, they appear to have survived on wild fruits and three pounds of cassava flour, a high-protein traditional food of the Amazon diet, which they got from the wreckage (残骸) of the plane.When found, the children had bottles they used to collect water, either from streams or from the rain.
While their survival remains a marvel, it was no doubt facilitated by traditional knowledge of the forest they acquired from a remarkably young age.Lesly, in particular, is praised for not only staying alive herself, but also making sure her younger sisters and brothers would survive following the loss of their mother in the plane crash.
Nelly Kuiru, an activist, believes that her courage goes far beyond botanical skills：“Ancestral, traditional knowledge is more than that Lesly learnt to pick fruits, but there's something much deeper there, a spiritual connection with the forest surrounding us.”
语篇解读：本文是一篇记叙文。文章主要讲述了四个孩子在哥伦比亚的亚马孙森林中生存了40天的事情。
1．Eliecer Mu oz viewed Lesly's keeping seeds in her mouth as .
A．a survival skill B．a rescue technique
C．an eating habit D．a unique culture
解析：细节理解题。根据文章第二段中的 “That's how they stayed alive.”可知，Eliecer Mu oz认为Lesly嘴里含着种子的行为是一种生存技能。
√
2．What does the third paragraph mainly talk about
A．The exact cause of the plane crash.
B．The detailed search and rescue operations.
C．The food the children depended on to stay alive.
D．The difficulty of surviving in the Amazon rainforest.
解析：段落大意题。根据文章第三段的内容特别是最后两句可知，第三段主要讲述了孩子们是依靠什么食物生存下来的。
√
3．Which words can best describe Lesly
A．Talented and experienced.
B．Intelligent and responsible.
C．Honest and knowledgeable.
D．Creative and open-minded.
解析：推理判断题。根据文章第二段中描述的她获取食物的方式可知，Lesly非常聪明；第四段中提到，母亲在飞机失事中丧生后，是她确保了她的弟弟妹妹们都能活下来，由此可知，Lesly非常负责任。
√
4．What does Nelly Kuiru mainly want to show in the last paragraph
A．Botanical skills are more important than courage.
B．Lesly learned to find food in the forest from her ancestors.
C．Lesly is connected with her living environment spiritually.
D．Picking fruits is the basic knowledge to survive in the forest.
解析：推理判断题。根据文章最后一段中的“but there's something much deeper there, a spiritual connection with the forest surrounding us”可知，Nelly Kuiru认为Lesly的生存不仅体现在对植物的了解上，更体现在她与所处森林的精神联系上。
√
B
Humans have always been working Earth's land, and they also have always been studying and hoping to work the land of Mars one day.
Planetary scientist Abhilash Ramachandran at the Lunar and Planetary Science Conference reported that Martian dirt may have all the necessary nutrients for growing rice, one of humankind's most important foods.However, he emphasizes that the plant may need a bit of help to survive in perchlorate (高氯酸盐), a chemical that can be harmful to plants and has been detected on the surface of Mars.
Ramachandran says they want to send humans to Mars, but they cannot take everything there, especially food.He thinks it's going to be expensive, but growing rice there would be ideal.
Ramachandran and his colleagues grew rice plants in a Martian soil simulant (模拟物)．They also grew rice in pure potting mix as well as several mixtures of the potting mix and soil simulant.All pots were watered once or twice a day.The team found rice plants did grow in the artistic dirt of Mars.However, the plants developed slighter shoots and
thinner roots than the plants that grew from the potting mix and hybrid soils.The researchers also tried growing rice in soil with added perchlorate.They sourced some rice varieties — modified to stand environmental stressors like drought — and grew them in Mars-like dirt with and without perchlorate.No rice plants grew in a concentration of 3g of perchlorate per kilogram of soil.But when the concentration was just 1g per kilogram, one of the rice varieties grew both a shoot and a root, while another managed to grow a root.
The findings are encouraging, suggesting that by changing to improve with one successful modified gene, humans might eventually be able to develop a rice cultivar suitable for Mars.
语篇解读：本文是一篇说明文。文章介绍了在火星上种植水稻的意义和可能性。
5．What does Ramachandran stress about growing rice on Mars in paragraph 2
A．The challenge. B．The reason.
C．The benefit. D．The purpose.
解析：细节理解题。根据第二段最后一句可知，Ramahandran 强调了在火星上种植水稻面临的挑战：火星上有一种对植物有害的化学物质，即高氯酸盐。
√
6．Why do the scientists want to plant rice on Mars
A．To purify the Martian air.
B．To feed Martian explorers.
C．To test the Martian soil simulant.
D．To improve the Martian soil environment.
解析：细节理解题。根据第三段可知，科学家们想在火星上种植水稻是为了给探索火星者提供食物。
√
7．What can we learn about rice plants from the experiments
A．Their weight ranged from 1g to 3g.
B．They stopped growing in Mars-like dirt.
C．They never developed roots in soil with perchlorate.
D．Their growth was affected by perchlorate's concentration.
解析：推理判断题。根据第四段最后两句可知，实验表明水稻的生长受高氯酸盐的影响。土壤中高氯酸盐的浓度越低，水稻的长势越好。
√
8．What is the author's attitude to the research findings
A．Suspicious. B．Critical.
C．Positive. D．Curious.
解析：观点态度题。根据最后一段可知，这项研究结果令人鼓舞，作者对该研究结果持肯定的态度。
√
Ⅱ.阅读七选五
As adolescents, having a great impact on the world may seem like an impossible task.Changing the world does not only mean finding a cure for cancer, or finding the origin of human beings, but also recycling some things as well. 9
Recycle.
According to a report, 63 million newspapers go out to customers every day and of those 44 million are thrown away. 10
The age of technology constantly creates new phones, or new computers.Many people will stand in line for hours to get their hands on the new technology, but about 75% of the old devices sit in the back of a drawer collecting dust.By taking them to the local stores that collect them they go to people in need.
11
Here are some astonishing facts on going vegetarian (素食的) for only one day.The Environmental Defense concludes that if the entire population omitted (省去) one meal of chicken, the amount of carbon dioxide reduced would be the same amount as more than half a million cars are taken off the US roads.
Ditch (丢弃) bottled water.
Most people drink bottled water because of the common conception that bottled water is healthier than regular tap water. 12 All that is done extra is water going through a filter (过滤器)．Companies do not need to list where they get the water from, how they purify the water, or what chemicals their plastic water bottles contain. 13 It results in 1.5 million tons of plastic in landfill.
Keep in mind what Margaret Mead once said, “Never doubt a small group of thoughtful and committed citizens can change the world; indeed, it's the only thing that ever has.”
A．Let's take action right now.
B．Go vegetarian one day a week.
C．Learn some astonishing facts.
D．As a result, 90% of the plastic bottles do not get recycled.
E．Actually, 25% of bottled water comes from regular tap water.
F．Recycling the newspapers alone we could save half a million trees a week.
G．What follows are three simple ways adolescents can go green and change the world.
语篇解读：本文是一篇说明文。文章主要介绍了三个环保小贴士，并鼓励人们要保护环境，可以从身边的小事做起。
9．选G 上文讲到做一些回收也会影响我们所生活的世界，下文提到了三个有益于环保的做法，故G项承上启下，符合语境。
10．选F 根据此段小标题Recycle和空前一句可知，此段在谈论回收废报纸的好处，故选F。
11．选B 本段主要讲素食对环保的影响，故B项“每周一天吃素食”能概括本段内容。
12．选E 根据上下文语境可知，人们喝瓶装水是因为认为它比自来水更健康，但实际上，25%的瓶装水来自自来水，只是多了一个过滤的程序而已，故选E。
13．选D 根据空后一句可知，垃圾填埋池有这么多的废弃塑料是因为很多塑料瓶没有被回收，故选D。4 / 4
UNIT 6 课时检测(四) “Developing ideas”的课文习读环节
Ⅰ.阅读理解
A
When four young children were found after 40 days in the Colombian Amazon forest, the rescuers noticed that the oldest, 13 year old Lesly Mucutuy, had some seeds hidden between her teeth.
The seeds were from a native Amazon palm tree known as “milpesos” in Colombia.Its fruits are rich in fat and Amazon tribes use them to make a vegetable oil.“She was keeping them so that the warmth of her mouth would open up the seeds and she could feed the pulp (果肉) to her younger sisters and brothers，” said Eliecer Mu oz, one of the four guards who made the very first contact with the children.“That's how they stayed alive.”
Survival experts have been trying to answer this question：How did the four children — the youngest just a baby — survive in the heart of the Amazon rainforest for so long The stretch of the jungle they were found in is one of the most remote and difficult to reach in Colombia, where wild animals and poisonous insects are plentiful, rains can pour for over 15 hours a day and visibility is sometimes limited to 10 meters due to the thick vegetation.In more than a month without adults, they appear to have survived on wild fruits and three pounds of cassava flour, a high protein traditional food of the Amazon diet, which they got from the wreckage (残骸) of the plane.When found, the children had bottles they used to collect water, either from streams or from the rain.
While their survival remains a marvel, it was no doubt facilitated by traditional knowledge of the forest they acquired from a remarkably young age.Lesly, in particular, is praised for not only staying alive herself, but also making sure her younger sisters and brothers would survive following the loss of their mother in the plane crash.
Nelly Kuiru, an activist, believes that her courage goes far beyond botanical skills：“Ancestral, traditional knowledge is more than that Lesly learnt to pick fruits, but there's something much deeper there, a spiritual connection with the forest surrounding us.”
1．Eliecer Mu oz viewed Lesly's keeping seeds in her mouth as ________.
A．a survival skill B．a rescue technique
C．an eating habit D．a unique culture
2．What does the third paragraph mainly talk about
A．The exact cause of the plane crash.
B．The detailed search and rescue operations.
C．The food the children depended on to stay alive.
D．The difficulty of surviving in the Amazon rainforest.
3．Which words can best describe Lesly
A．Talented and experienced.
B．Intelligent and responsible.
C．Honest and knowledgeable.
D．Creative and open minded.
4．What does Nelly Kuiru mainly want to show in the last paragraph
A．Botanical skills are more important than courage.
B．Lesly learned to find food in the forest from her
ancestors.
C．Lesly is connected with her living environment
spiritually.
D．Picking fruits is the basic knowledge to survive
in the forest.
B
Humans have always been working Earth's land, and they also have always been studying and hoping to work the land of Mars one day.
Planetary scientist Abhilash Ramachandran at the Lunar and Planetary Science Conference reported that Martian dirt may have all the necessary nutrients for growing rice, one of humankind's most important foods.However, he emphasizes that the plant may need a bit of help to survive in perchlorate (高氯酸盐), a chemical that can be harmful to plants and has been detected on the surface of Mars.
Ramachandran says they want to send humans to Mars, but they cannot take everything there, especially food.He thinks it's going to be expensive, but growing rice there would be ideal.
Ramachandran and his colleagues grew rice plants in a Martian soil simulant (模拟物)．They also grew rice in pure potting mix as well as several mixtures of the potting mix and soil simulant.All pots were watered once or twice a day.The team found rice plants did grow in the artistic dirt of Mars.However, the plants developed slighter shoots and thinner roots than the plants that grew from the potting mix and hybrid soils.The researchers also tried growing rice in soil with added perchlorate.They sourced some rice varieties — modified to stand environmental stressors like drought — and grew them in Mars like dirt with and without perchlorate.No rice plants grew in a concentration of 3g of perchlorate per kilogram of soil.But when the concentration was just 1g per kilogram, one of the rice varieties grew both a shoot and a root, while another managed to grow a root.
The findings are encouraging, suggesting that by changing to improve with one successful modified gene, humans might eventually be able to develop a rice cultivar suitable for Mars.
5．What does Ramachandran stress about growing rice on Mars in paragraph 2
A．The challenge. B．The reason.
C．The benefit. D．The purpose.
6．Why do the scientists want to plant rice on Mars
A．To purify the Martian air.
B．To feed Martian explorers.
C．To test the Martian soil simulant.
D．To improve the Martian soil environment.
7．What can we learn about rice plants from the experiments
A．Their weight ranged from 1g to 3g.
B．They stopped growing in Mars like dirt.
C．They never developed roots in soil with perchlorate.
D．Their growth was affected by perchlorate's concentration.
8．What is the author's attitude to the research findings
A．Suspicious. B．Critical.
C．Positive. D．Curious.
Ⅱ.阅读七选五
As adolescents, having a great impact on the world may seem like an impossible task.Changing the world does not only mean finding a cure for cancer, or finding the origin of human beings, but also recycling some things as well.__9__
Recycle.
According to a report, 63 million newspapers go out to customers every day and of those 44 million are thrown away.__10__
The age of technology constantly creates new phones, or new computers.Many people will stand in line for hours to get their hands on the new technology, but about 75% of the old devices sit in the back of a drawer collecting dust.By taking them to the local stores that collect them they go to people in need.
__11__
Here are some astonishing facts on going vegetarian (素食的) for only one day.The Environmental Defense concludes that if the entire population omitted (省去) one meal of chicken, the amount of carbon dioxide reduced would be the same amount as more than half a million cars are taken off the US roads.
Ditch (丢弃) bottled water.
Most people drink bottled water because of the common conception that bottled water is healthier than regular tap water.__12__ All that is done extra is water going through a filter (过滤器)．Companies do not need to list where they get the water from, how they purify the water, or what chemicals their plastic water bottles contain.__13__ It results in 1.5 million tons of plastic in landfill.
Keep in mind what Margaret Mead once said, “Never doubt a small group of thoughtful and committed citizens can change the world; indeed, it's the only thing that ever has.”
A．Let's take action right now.
B．Go vegetarian one day a week.
C．Learn some astonishing facts.
D．As a result, 90% of the plastic bottles do not get recycled.
E．Actually, 25% of bottled water comes from regular tap water.
F．Recycling the newspapers alone we could save half a million trees a week.
G．What follows are three simple ways adolescents can go green and change the world.
UNIT 6 课时检测(四)
Ⅰ.阅读理解
语篇解读：本文是一篇记叙文。文章主要讲述了四个孩子在哥伦比亚的亚马孙森林中生存了40天的事情。
1．选A 细节理解题。根据文章第二段中的 “That's how they stayed alive.”可知，Eliecer Mu oz认为Lesly嘴里含着种子的行为是一种生存技能。
2．选C 段落大意题。根据文章第三段的内容特别是最后两句可知，第三段主要讲述了孩子们是依靠什么食物生存下来的。
3．选B 推理判断题。根据文章第二段中描述的她获取食物的方式可知，Lesly非常聪明；第四段中提到，母亲在飞机失事中丧生后，是她确保了她的弟弟妹妹们都能活下来，由此可知，Lesly非常负责任。
4．选C 推理判断题。根据文章最后一段中的“but there's something much deeper there, a spiritual connection with the forest surrounding us”可知，Nelly Kuiru认为Lesly的生存不仅体现在对植物的了解上，更体现在她与所处森林的精神联系上。
语篇解读：本文是一篇说明文。文章介绍了在火星上种植水稻的意义和可能性。
5．选A 细节理解题。根据第二段最后一句可知，Ramahandran 强调了在火星上种植水稻面临的挑战：火星上有一种对植物有害的化学物质，即高氯酸盐。
6．选B 细节理解题。根据第三段可知，科学家们想在火星上种植水稻是为了给探索火星者提供食物。
7．选D 推理判断题。根据第四段最后两句可知，实验表明水稻的生长受高氯酸盐的影响。土壤中高氯酸盐的浓度越低，水稻的长势越好。
8．选C 观点态度题。根据最后一段可知，这项研究结果令人鼓舞，作者对该研究结果持肯定的态度。
Ⅱ.阅读七选五
语篇解读：本文是一篇说明文。文章主要介绍了三个环保小贴士，并鼓励人们要保护环境，可以从身边的小事做起。
9．选G 上文讲到做一些回收也会影响我们所生活的世界，下文提到了三个有益于环保的做法，故G项承上启下，符合语境。
10．选F 根据此段小标题Recycle和空前一句可知，此段在谈论回收废报纸的好处，故选F。
11．选B 本段主要讲素食对环保的影响，故B项“每周一天吃素食”能概括本段内容。
12．选E 根据上下文语境可知，人们喝瓶装水是因为认为它比自来水更健康，但实际上，25%的瓶装水来自自来水，只是多了一个过滤的程序而已，故选E。
13．选D 根据空后一句可知，垃圾填埋池有这么多的废弃塑料是因为很多塑料瓶没有被回收，故选D。
