人教版2019年高中必修二 Unit 2 Wildlife Protection 单元知识总结清单（含练习题和书面表达句式范文）
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| 名称 | 人教版2019年高中必修二 Unit 2 Wildlife Protection 单元知识总结清单（含练习题和书面表达句式范文） |  | |
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Unit 2 Wildlife Protection 单元知识总结清单
一、词组搭配
（一）动词词组
die out：灭亡；逐渐消失。
例句：Many species are dying out due to environmental pollution.
（由于环境污染，许多物种正在逐渐消失。）
make progress：取得进步。
例句：With hard work, he has made great progress in English.
（通过努力学习，他在英语方面取得了很大进步。）
be concerned about：对…… 关切的；为…… 担忧的。
例句：We should be concerned about the endangered wildlife.
（我们应该关注濒危野生动物。）
adapt to：适应。
例句：It took him some time to adapt to the new environment.
（他花了一些时间来适应新环境。）
watch over：保护；照管；监督。
例句：The volunteers watch over the Tibetan antelopes day and night.
（志愿者们日夜守护着藏羚羊。）
stir up：激起。
例句：His words stirred up strong emotions among the audience.
（他的话在观众中激起了强烈的情绪。）
search for：搜索；查找。
例句：They are searching for the lost child in the forest.
（他们正在森林里寻找那个走失的孩子。）
take measures：采取措施。
例句：We must take measures to protect the environment.
（我们必须采取措施保护环境。）
（二）名词词组
wildlife protection：野生动物保护。
例句：Wildlife protection is of great importance for the balance of nature.
（野生动物保护对生态平衡至关重要。）
endangered species：濒危物种。
例句：The panda is one of the endangered species in the world.
（熊猫是世界濒危物种之一。）
nature reserve：（动植物）保护区。
例句：The Changtang National Nature Reserve is a shelter for Tibetan antelopes.（羌塘国家级自然保护区是藏羚羊的庇护所。）
bird field guide：鸟类图鉴。
例句：He used a bird field guide to identify the birds he saw.
（他用鸟类图鉴来识别他看到的鸟类。）
binoculars：双筒望远镜。
例句：With the help of binoculars, we can observe birds from far away.
（借助双筒望远镜，我们可以从远处观察鸟类。）
（三）介词词组
on earth：（放在疑问词之后表示强调）究竟；到底。
例句：What on earth do you want （你究竟想要什么？）
aware of：意识到；知道。
例句：We should be aware of the importance of wildlife protection.
（我们应该意识到野生动物保护的重要性。）
under pressure：在压力下；承受压力。
例句：The authorities are under pressure to solve the environmental problem.
（当局在解决环境问题上承受着压力。）
due to：由于；因为。
例句：The flight was cancelled due to the bad weather.
（由于天气恶劣，航班被取消了。）
（四）词汇练习题
Fill in the blanks with the correct forms of the phrases above.
用以上短语的正确形式填空。
Many old customs are _______.
She has _______ in her study since she changed her learning method.
We should all be _______ the environment around us.
It took the new employees some time to _______ the new working rules.
The parents _______ their children carefully.
His speech _______ the audience's enthusiasm.
They are _______ the missing keys everywhere.
We must _______ to reduce pollution.
Translate the following sentences into English, using the phrases above.
用上面的短语把下面的句子翻译成英语。
你究竟为什么不告诉我这个消息？
我们应该意识到保护濒危物种的重要性。
由于过度捕猎，一些物种正面临灭绝。
志愿者们日夜照看着这些小动物。
他的话激起了我对学习英语的兴趣。
二、语法知识点
（一）现在进行时的被动语态
结构：am/is/are + being + 过去分词。
用法：表示现在正在进行的被动动作。
例句
The house is being built by the workers.（房子正在被工人们建造。）
Many trees are being cut down every day.（每天都有许多树木被砍伐。）
The problem is being discussed by the students.
（学生们正在讨论这个问题。）
（二）练习题
Complete the sentences with the correct forms of the given verbs.
用所给动词的正确形式完成句子。
A new park _______ (build) in our city now.
The animals _______ (protect) by the volunteers at present.
These books _______ (sell) well in the bookstore these days.
The project _______ (carry out) by the company now.
Rewrite the following sentences using the present continuous passive voice.
用现在进行时被动语态改写下列句子。
They are planting many trees on the hill.
The workers are repairing the bridge.
People are hunting the wild animals illegally.
The government is making a new plan to protect the environment.
三、重要句式句型分析
（一）Only when...can we...
结构：Only + 状语从句 + 部分倒装的主句（情态动词 / 助动词 + 主语 + 动词原形）。
功能：强调只有在满足从句条件的情况下，主句的动作才能发生。
例句：Only when we work hard can we achieve our goals.
（只有当我们努力工作，我们才能实现目标。）
（二）What...is...
结构：What 引导主语从句，在句中充当主语，is 后面接表语。
功能：用于解释说明、强调某事物的具体内容。
例句：What we need is more time.（我们需要的是更多时间。）
（三）翻译练习题
只有当我们学会与自然和谐相处，我们才能停止成为野生动物和地球的威胁。
我们现在最需要的是采取有效措施来保护濒危物种。
只有当每个人都意识到这个问题，我们才能解决它。
他想要的是有机会去参观那个自然保护区。
四、单元书面表达写作指导
（一）重要词汇词组搭配积累
野生动物相关：wildlife, creature, species, endangered, extinct, habitat, reserve
保护行动相关：protect, preserve, save, rescue, watch over, take measures, prevent...from...
原因与影响相关：due to, because of, result in, lead to, cause, harm
情感与呼吁相关：concerned, aware, stir up, appeal to, call on
（二）高分句式积累
It is important/necessary for us to...
例句：It is important for us to protect wildlife.
（对我们来说，保护野生动物很重要。）
There is no doubt that...
例句：There is no doubt that wildlife protection is a global issue.
（毫无疑问，野生动物保护是一个全球性问题。）
With the development of...,...
例句：With the development of society, more and more wildlife is facing the threat of extinction.（随着社会的发展，越来越多的野生动物面临灭绝的威胁。）
If we..., we will...
例句：If we don't take action to protect wildlife, we will lose them forever.
（如果我们不采取行动保护野生动物，我们将永远失去它们。）
（三）参考范文
Protecting Wildlife
Wildlife is an important part of our ecosystem. However, nowadays, many species are facing the danger of extinction due to various reasons such as illegal hunting, habitat loss and pollution.
There is no doubt that protecting wildlife is of great significance. First of all, wildlife helps maintain the balance of nature. Each species plays a unique role in the ecosystem. For example, if a certain predator disappears, the population of its prey may increase rapidly, which will disrupt the food chain. Moreover, wildlife also has great value in scientific research and provides us with a rich source of inspiration for art and culture.
To protect wildlife, we should take many measures. The government should make and enforce strict laws to punish those who hunt wildlife illegally. At the same time, we should raise public awareness of wildlife protection. We can use posters, social media and other means to stir up people's concern for wildlife. As individuals, we can also do our part. For example, we should not buy products made from endangered animals and support wildlife protection organizations.
In conclusion, protecting wildlife is a task that everyone should take responsibility for. Only when we all work together can we ensure the survival and prosperity of wildlife and create a harmonious co - existence between humans and nature.
练习题答案及解析
一、词组搭配练习题答案及解析
（一）Fill in the blanks with the correct forms of the phrases above
答案：dying out
解析：“Many old customs”（许多古老的习俗），结合 “die out” 表示 “灭亡；逐渐消失”，句子表达许多古老习俗正在逐渐消失，符合语境，且此处用现在进行时表示逐渐消失的过程 。
答案：made progress
解析：“since she changed her learning method”（自从她改变学习方法以来），“make progress” 意为 “取得进步”，句子时态为现在完成时，“make” 的过去分词是 “made”，表示从过去到现在在学习上取得了进步 。
答案：concerned about
解析：“the environment around us”（我们周围的环境），“be concerned about” 表示 “对…… 关切的；为…… 担忧的”，句子表达我们应该关注周围环境，“be” 动词与 “should” 搭配使用原形 。
答案：adapt to
解析：“the new working rules”（新的工作规则），“adapt to” 意思是 “适应”，“It took sb. some time to do sth.” 是固定句型，表示 “某人花时间做某事”，此处表示新员工花时间适应新工作规则 。
答案：watch over
解析：“the parents”（父母）和 “their children”（他们的孩子），“watch over” 有 “保护；照管；监督” 的含义，句子描述父母仔细照管孩子，是一般现在时，主语 “the parents” 是复数，动词用原形 。
答案：stirred up
解析：“the audience's enthusiasm”（观众的热情），“stir up” 表示 “激起”，句子描述过去发生的事情，用一般过去时，“stir” 的过去式是 “stirred”，即他的演讲激起了观众的热情 。
答案：searching for
解析：“the missing keys”（丢失的钥匙），“search for” 意为 “搜索；查找”，句子用现在进行时，表示他们正在到处寻找丢失的钥匙，“search” 的现在分词是 “searching” 。
答案：take measures
解析：“to reduce pollution”（减少污染），“take measures” 表示 “采取措施”，“must” 是情态动词，后接动词原形，句子表达我们必须采取措施减少污染 。
（二）Translate the following sentences into English, using the phrases above
答案：Why on earth didn't you tell me this news
解析：“为什么” 用 “Why”，“究竟” 用 “on earth”，放在疑问词 “Why” 之后加强语气；“告诉某人某事” 是 “tell sb. sth.”，句子时态为一般过去时，“tell” 的过去式是 “told”，借助助动词 “did” 构成疑问句 。
答案：We should be aware of the importance of protecting endangered species.
解析：“应该” 用 “should”，“意识到” 用 “be aware of”，“of” 后接动名词短语 “protecting endangered species”，“the importance of...” 表示 “…… 的重要性” 。
答案：Some species are facing extinction due to overhunting.
解析：“一些物种” 是 “Some species”，“面临灭绝” 可意译为 “facing extinction”；“由于” 用 “due to”，后接名词短语 “overhunting”（过度捕猎） 。
答案：The volunteers watch over these small animals day and night.
解析：“志愿者们” 是 “The volunteers”，“照看着” 用 “watch over”，“这些小动物” 翻译为 “these small animals”，“day and night” 表示 “日夜”，作时间状语 。
答案：His words stirred up my interest in learning English.
解析：“他的话” 是 “His words”，“激起” 用 “stir up”，句子时态为一般过去时，“stir” 的过去式是 “stirred”；“我对学习英语的兴趣” 翻译为 “my interest in learning English”，“in” 后接动名词 “learning” 。
二、语法知识点练习题答案及解析
（一）Complete the sentences with the correct forms of the given verbs
答案：is being built
解析：“A new park”（一个新公园）和 “build”（建造）是被动关系，且 “now” 表明是现在正在进行的动作，所以用现在进行时的被动语态 “am/is/are + being + 过去分词”，主语 “A new park” 是单数，be 动词用 “is”，“build” 的过去分词是 “built” 。
答案：are being protected
解析：“The animals”（动物们）和 “protect”（保护）是被动关系，“at present” 表示现在，用现在进行时的被动语态，主语 “The animals” 是复数，be 动词用 “are”，“protect” 的过去分词是 “protected” 。
答案：are being sold
解析：“These books”（这些书）和 “sell”（卖）是被动关系，“these days” 表示当前一段时间内正在发生的动作，用现在进行时的被动语态，主语 “These books” 是复数，be 动词用 “are”，“sell” 的过去分词是 “sold” 。
答案：is being carried out
解析：“The project”（这个项目）和 “carry out”（实施）是被动关系，“now” 表示现在正在进行，用现在进行时的被动语态，主语 “The project” 是单数，be 动词用 “is”，“carry out” 的过去分词是 “carried out” 。
（二）Rewrite the following sentences using the present continuous passive voice
答案：Many trees are being planted on the hill by them.
解析：原句主动语态 “They are planting many trees on the hill”（他们正在山上种许多树），改为现在进行时的被动语态，将宾语 “many trees” 提前作主语，“are” 后加 “being planted”，原主语 “They” 前加 “by” 放在句末 。
答案：The bridge is being repaired by the workers.
解析：把主动句 “The workers are repairing the bridge”（工人们正在修理桥）改为被动句，“The bridge” 作主语，“is” 后接 “being repaired”，“by the workers” 表明动作执行者 。
答案：The wild animals are being hunted illegally by people.
解析：主动句 “People are hunting the wild animals illegally”（人们正在非法捕猎野生动物）变被动，“The wild animals” 作主语，“are” 加 “being hunted”，“by people” 放在句末说明动作的发出者 。
答案：A new plan to protect the environment is being made by the government.
解析：将主动句 “The government is making a new plan to protect the environment”（政府正在制定一项保护环境的新计划）改为被动，“A new plan to protect the environment” 作主语，“is” 后接 “being made”，“by the government” 表明施动者 。
三、重要句式句型分析翻译练习题答案及解析
答案：Only when we learn to live in harmony with nature can we stop being a threat to wildlife and the earth.
解析：使用 “Only when...can we...” 结构，“Only” 后接时间状语从句 “when we learn to live in harmony with nature”（当我们学会与自然和谐相处），主句部分倒装，将情态动词 “can” 提到主语 “we” 前面，“stop being a threat to...” 表示 “停止成为…… 的威胁” 。
答案：What we need most now is to take effective measures to protect endangered species.
解析：运用 “What...is...” 结构，“What we need most now” 是主语从句，作句子主语；“is” 后接表语 “to take effective measures to protect endangered species”（采取有效措施保护濒危物种），“to take...measures” 表示 “采取…… 措施” 。
答案：Only when everyone is aware of this problem can we solve it.
解析：依据 “Only when...can we...” 结构，“Only” 引导时间状语从句 “when everyone is aware of this problem”（当每个人都意识到这个问题），主句部分倒装，“can” 提前，“be aware of” 表示 “意识到”，“solve it” 表示 “解决它” 。
答案：What he wants is to have a chance to visit that nature reserve.
解析：采用 “What...is...” 结构，“What he wants” 是主语从句，作主语；“is” 后接表语 “to have a chance to visit that nature reserve”（有机会去参观那个自然保护区），“to have a chance to do sth.” 表示 “有机会做某事” 。
Unit 2 Wildlife Protection 单元知识总结清单
一、词组搭配
（一）动词词组
die out：灭亡；逐渐消失。
例句：Many species are dying out due to environmental pollution.
（由于环境污染，许多物种正在逐渐消失。）
make progress：取得进步。
例句：With hard work, he has made great progress in English.
（通过努力学习，他在英语方面取得了很大进步。）
be concerned about：对…… 关切的；为…… 担忧的。
例句：We should be concerned about the endangered wildlife.
（我们应该关注濒危野生动物。）
adapt to：适应。
例句：It took him some time to adapt to the new environment.
（他花了一些时间来适应新环境。）
watch over：保护；照管；监督。
例句：The volunteers watch over the Tibetan antelopes day and night.
（志愿者们日夜守护着藏羚羊。）
stir up：激起。
例句：His words stirred up strong emotions among the audience.
（他的话在观众中激起了强烈的情绪。）
search for：搜索；查找。
例句：They are searching for the lost child in the forest.
（他们正在森林里寻找那个走失的孩子。）
take measures：采取措施。
例句：We must take measures to protect the environment.
（我们必须采取措施保护环境。）
（二）名词词组
wildlife protection：野生动物保护。
例句：Wildlife protection is of great importance for the balance of nature.
（野生动物保护对生态平衡至关重要。）
endangered species：濒危物种。
例句：The panda is one of the endangered species in the world.
（熊猫是世界濒危物种之一。）
nature reserve：（动植物）保护区。
例句：The Changtang National Nature Reserve is a shelter for Tibetan antelopes.（羌塘国家级自然保护区是藏羚羊的庇护所。）
bird field guide：鸟类图鉴。
例句：He used a bird field guide to identify the birds he saw.
（他用鸟类图鉴来识别他看到的鸟类。）
binoculars：双筒望远镜。
例句：With the help of binoculars, we can observe birds from far away.
（借助双筒望远镜，我们可以从远处观察鸟类。）
（三）介词词组
on earth：（放在疑问词之后表示强调）究竟；到底。
例句：What on earth do you want （你究竟想要什么？）
aware of：意识到；知道。
例句：We should be aware of the importance of wildlife protection.
（我们应该意识到野生动物保护的重要性。）
under pressure：在压力下；承受压力。
例句：The authorities are under pressure to solve the environmental problem.
（当局在解决环境问题上承受着压力。）
due to：由于；因为。
例句：The flight was cancelled due to the bad weather.
（由于天气恶劣，航班被取消了。）
（四）词汇练习题
Fill in the blanks with the correct forms of the phrases above.
用以上短语的正确形式填空。
Many old customs are _______.
She has _______ in her study since she changed her learning method.
We should all be _______ the environment around us.
It took the new employees some time to _______ the new working rules.
The parents _______ their children carefully.
His speech _______ the audience's enthusiasm.
They are _______ the missing keys everywhere.
We must _______ to reduce pollution.
Translate the following sentences into English, using the phrases above.
用上面的短语把下面的句子翻译成英语。
你究竟为什么不告诉我这个消息？
我们应该意识到保护濒危物种的重要性。
由于过度捕猎，一些物种正面临灭绝。
志愿者们日夜照看着这些小动物。
他的话激起了我对学习英语的兴趣。
二、语法知识点
（一）现在进行时的被动语态
结构：am/is/are + being + 过去分词。
用法：表示现在正在进行的被动动作。
例句
The house is being built by the workers.（房子正在被工人们建造。）
Many trees are being cut down every day.（每天都有许多树木被砍伐。）
The problem is being discussed by the students.
（学生们正在讨论这个问题。）
（二）练习题
Complete the sentences with the correct forms of the given verbs.
用所给动词的正确形式完成句子。
A new park _______ (build) in our city now.
The animals _______ (protect) by the volunteers at present.
These books _______ (sell) well in the bookstore these days.
The project _______ (carry out) by the company now.
Rewrite the following sentences using the present continuous passive voice.
用现在进行时被动语态改写下列句子。
They are planting many trees on the hill.
The workers are repairing the bridge.
People are hunting the wild animals illegally.
The government is making a new plan to protect the environment.
三、重要句式句型分析
（一）Only when...can we...
结构：Only + 状语从句 + 部分倒装的主句（情态动词 / 助动词 + 主语 + 动词原形）。
功能：强调只有在满足从句条件的情况下，主句的动作才能发生。
例句：Only when we work hard can we achieve our goals.
（只有当我们努力工作，我们才能实现目标。）
（二）What...is...
结构：What 引导主语从句，在句中充当主语，is 后面接表语。
功能：用于解释说明、强调某事物的具体内容。
例句：What we need is more time.（我们需要的是更多时间。）
（三）翻译练习题
只有当我们学会与自然和谐相处，我们才能停止成为野生动物和地球的威胁。
我们现在最需要的是采取有效措施来保护濒危物种。
只有当每个人都意识到这个问题，我们才能解决它。
他想要的是有机会去参观那个自然保护区。
四、单元书面表达写作指导
（一）重要词汇词组搭配积累
野生动物相关：wildlife, creature, species, endangered, extinct, habitat, reserve
保护行动相关：protect, preserve, save, rescue, watch over, take measures, prevent...from...
原因与影响相关：due to, because of, result in, lead to, cause, harm
情感与呼吁相关：concerned, aware, stir up, appeal to, call on
（二）高分句式积累
It is important/necessary for us to...
例句：It is important for us to protect wildlife.
（对我们来说，保护野生动物很重要。）
There is no doubt that...
例句：There is no doubt that wildlife protection is a global issue.
（毫无疑问，野生动物保护是一个全球性问题。）
With the development of...,...
例句：With the development of society, more and more wildlife is facing the threat of extinction.（随着社会的发展，越来越多的野生动物面临灭绝的威胁。）
If we..., we will...
例句：If we don't take action to protect wildlife, we will lose them forever.
（如果我们不采取行动保护野生动物，我们将永远失去它们。）
（三）参考范文
Protecting Wildlife
Wildlife is an important part of our ecosystem. However, nowadays, many species are facing the danger of extinction due to various reasons such as illegal hunting, habitat loss and pollution.
There is no doubt that protecting wildlife is of great significance. First of all, wildlife helps maintain the balance of nature. Each species plays a unique role in the ecosystem. For example, if a certain predator disappears, the population of its prey may increase rapidly, which will disrupt the food chain. Moreover, wildlife also has great value in scientific research and provides us with a rich source of inspiration for art and culture.
To protect wildlife, we should take many measures. The government should make and enforce strict laws to punish those who hunt wildlife illegally. At the same time, we should raise public awareness of wildlife protection. We can use posters, social media and other means to stir up people's concern for wildlife. As individuals, we can also do our part. For example, we should not buy products made from endangered animals and support wildlife protection organizations.
In conclusion, protecting wildlife is a task that everyone should take responsibility for. Only when we all work together can we ensure the survival and prosperity of wildlife and create a harmonious co - existence between humans and nature.
练习题答案及解析
一、词组搭配练习题答案及解析
（一）Fill in the blanks with the correct forms of the phrases above
答案：dying out
解析：“Many old customs”（许多古老的习俗），结合 “die out” 表示 “灭亡；逐渐消失”，句子表达许多古老习俗正在逐渐消失，符合语境，且此处用现在进行时表示逐渐消失的过程 。
答案：made progress
解析：“since she changed her learning method”（自从她改变学习方法以来），“make progress” 意为 “取得进步”，句子时态为现在完成时，“make” 的过去分词是 “made”，表示从过去到现在在学习上取得了进步 。
答案：concerned about
解析：“the environment around us”（我们周围的环境），“be concerned about” 表示 “对…… 关切的；为…… 担忧的”，句子表达我们应该关注周围环境，“be” 动词与 “should” 搭配使用原形 。
答案：adapt to
解析：“the new working rules”（新的工作规则），“adapt to” 意思是 “适应”，“It took sb. some time to do sth.” 是固定句型，表示 “某人花时间做某事”，此处表示新员工花时间适应新工作规则 。
答案：watch over
解析：“the parents”（父母）和 “their children”（他们的孩子），“watch over” 有 “保护；照管；监督” 的含义，句子描述父母仔细照管孩子，是一般现在时，主语 “the parents” 是复数，动词用原形 。
答案：stirred up
解析：“the audience's enthusiasm”（观众的热情），“stir up” 表示 “激起”，句子描述过去发生的事情，用一般过去时，“stir” 的过去式是 “stirred”，即他的演讲激起了观众的热情 。
答案：searching for
解析：“the missing keys”（丢失的钥匙），“search for” 意为 “搜索；查找”，句子用现在进行时，表示他们正在到处寻找丢失的钥匙，“search” 的现在分词是 “searching” 。
答案：take measures
解析：“to reduce pollution”（减少污染），“take measures” 表示 “采取措施”，“must” 是情态动词，后接动词原形，句子表达我们必须采取措施减少污染 。
（二）Translate the following sentences into English, using the phrases above
答案：Why on earth didn't you tell me this news
解析：“为什么” 用 “Why”，“究竟” 用 “on earth”，放在疑问词 “Why” 之后加强语气；“告诉某人某事” 是 “tell sb. sth.”，句子时态为一般过去时，“tell” 的过去式是 “told”，借助助动词 “did” 构成疑问句 。
答案：We should be aware of the importance of protecting endangered species.
解析：“应该” 用 “should”，“意识到” 用 “be aware of”，“of” 后接动名词短语 “protecting endangered species”，“the importance of...” 表示 “…… 的重要性” 。
答案：Some species are facing extinction due to overhunting.
解析：“一些物种” 是 “Some species”，“面临灭绝” 可意译为 “facing extinction”；“由于” 用 “due to”，后接名词短语 “overhunting”（过度捕猎） 。
答案：The volunteers watch over these small animals day and night.
解析：“志愿者们” 是 “The volunteers”，“照看着” 用 “watch over”，“这些小动物” 翻译为 “these small animals”，“day and night” 表示 “日夜”，作时间状语 。
答案：His words stirred up my interest in learning English.
解析：“他的话” 是 “His words”，“激起” 用 “stir up”，句子时态为一般过去时，“stir” 的过去式是 “stirred”；“我对学习英语的兴趣” 翻译为 “my interest in learning English”，“in” 后接动名词 “learning” 。
二、语法知识点练习题答案及解析
（一）Complete the sentences with the correct forms of the given verbs
答案：is being built
解析：“A new park”（一个新公园）和 “build”（建造）是被动关系，且 “now” 表明是现在正在进行的动作，所以用现在进行时的被动语态 “am/is/are + being + 过去分词”，主语 “A new park” 是单数，be 动词用 “is”，“build” 的过去分词是 “built” 。
答案：are being protected
解析：“The animals”（动物们）和 “protect”（保护）是被动关系，“at present” 表示现在，用现在进行时的被动语态，主语 “The animals” 是复数，be 动词用 “are”，“protect” 的过去分词是 “protected” 。
答案：are being sold
解析：“These books”（这些书）和 “sell”（卖）是被动关系，“these days” 表示当前一段时间内正在发生的动作，用现在进行时的被动语态，主语 “These books” 是复数，be 动词用 “are”，“sell” 的过去分词是 “sold” 。
答案：is being carried out
解析：“The project”（这个项目）和 “carry out”（实施）是被动关系，“now” 表示现在正在进行，用现在进行时的被动语态，主语 “The project” 是单数，be 动词用 “is”，“carry out” 的过去分词是 “carried out” 。
（二）Rewrite the following sentences using the present continuous passive voice
答案：Many trees are being planted on the hill by them.
解析：原句主动语态 “They are planting many trees on the hill”（他们正在山上种许多树），改为现在进行时的被动语态，将宾语 “many trees” 提前作主语，“are” 后加 “being planted”，原主语 “They” 前加 “by” 放在句末 。
答案：The bridge is being repaired by the workers.
解析：把主动句 “The workers are repairing the bridge”（工人们正在修理桥）改为被动句，“The bridge” 作主语，“is” 后接 “being repaired”，“by the workers” 表明动作执行者 。
答案：The wild animals are being hunted illegally by people.
解析：主动句 “People are hunting the wild animals illegally”（人们正在非法捕猎野生动物）变被动，“The wild animals” 作主语，“are” 加 “being hunted”，“by people” 放在句末说明动作的发出者 。
答案：A new plan to protect the environment is being made by the government.
解析：将主动句 “The government is making a new plan to protect the environment”（政府正在制定一项保护环境的新计划）改为被动，“A new plan to protect the environment” 作主语，“is” 后接 “being made”，“by the government” 表明施动者 。
三、重要句式句型分析翻译练习题答案及解析
答案：Only when we learn to live in harmony with nature can we stop being a threat to wildlife and the earth.
解析：使用 “Only when...can we...” 结构，“Only” 后接时间状语从句 “when we learn to live in harmony with nature”（当我们学会与自然和谐相处），主句部分倒装，将情态动词 “can” 提到主语 “we” 前面，“stop being a threat to...” 表示 “停止成为…… 的威胁” 。
答案：What we need most now is to take effective measures to protect endangered species.
解析：运用 “What...is...” 结构，“What we need most now” 是主语从句，作句子主语；“is” 后接表语 “to take effective measures to protect endangered species”（采取有效措施保护濒危物种），“to take...measures” 表示 “采取…… 措施” 。
答案：Only when everyone is aware of this problem can we solve it.
解析：依据 “Only when...can we...” 结构，“Only” 引导时间状语从句 “when everyone is aware of this problem”（当每个人都意识到这个问题），主句部分倒装，“can” 提前，“be aware of” 表示 “意识到”，“solve it” 表示 “解决它” 。
答案：What he wants is to have a chance to visit that nature reserve.
解析：采用 “What...is...” 结构，“What he wants” 是主语从句，作主语；“is” 后接表语 “to have a chance to visit that nature reserve”（有机会去参观那个自然保护区），“to have a chance to do sth.” 表示 “有机会做某事” 。