Period 4 单元语法讲练(Using language)
现在完成进行时
美文诵读 语法体悟
David ①has been looking forward to working in China．So he ②has been learning Chinese in the past two years．Until now he ③has mastered about 300 Chinese words and can communicate with Chinese people in simple Chinese．Besides，some Chinese storybooks ④have been bought by his parents and he ⑤has finished reading two of them． ①②使用了现在完成进行时，其构成为have/has＋been＋现在分词，表示从过去某时起一直持续到现在并有可能延续下去的动作。③④⑤使用了现在完成时，其构成为have/has＋过去分词，表示过去发生的动作对现在产生的影响或结果，其被动形式为have/has been done。
一、 现在完成进行时的构成、用法和相关的时间状语
1．构成：have/has been doing
2．基本用法：
(1)表示从过去某时开始一直延续到现在的动作。这个动作可能刚停止，也可能继续下去。常与all this time，this week，this month，all night，all the morning，recently等以及“since＋时间点”“for＋时间段”等时间状语连用。
—Excuse me，which movie are you waiting for
——打扰了，你们在等哪部电影？
—The new one．We have been waiting here for more than two hours．
——新上映的那部。我们已经在这儿等了两个多小时了。
(2)表示在一段持续的时间内动作的多次重复，而这个重复的动作在说话时并不一定在进行。
The students have been working hard on their lessons and their efforts will be rewarded with success in the end．
学生们一直在刻苦学习功课，他们的努力最后一定会得到回报。
(3)表示一直到说话时为止的一段时间内一再重复发生的动作。
The teacher has been telling us to be careful all the term．
整个学期，老师一直在告诉我们要细心。
(4)表达较重的感彩。
You have been daydreaming but never make an effort．
你一直在做白日梦，但从不努力。
3．相关的时间状语
现在完成进行时常与all the time，all the morning，these few days，all night等表示一段时间的状语连用。另外，如果表示某一动作的起点，可用since引导的短语或从句；如果表示某一动作的全部时间，可用for引导的短语。
He has been hoping for a raise in salary all the time．
他一直盼着加薪。
They have been quarreling since two days ago．
自从两天前起他们就一直在吵架。
单句语法填空
①I ________________________ (read) Hemingway's A Farewell to Arms recently．
②He ________________________ (play) tennis since he was eight．
③Hello！At last！I ____________________ (telephone) you all the morning．
④We ________________________ (discuss) the matter all this year．
⑤Now that she is out of work，Lucy ________________________________(consider) going back to school recently，but she hasn't decided yet．
二、现在完成进行时和现在完成时的用法区别
时态 基本语法功能 动作的反复
现在完成进行时 强调动作的持续性 可表示动作的反复
现在完成时 强调动作对现在造成的影响或产生的后果 不表示动作的反复
The car is OK now．I've repaired it．
这辆车现在可以开了，我已经把它修好了。(已经完成)
Marty has been working really hard on his book and he thinks he'll have finished it by Friday．
马蒂一直在努力写书，他认为周五就能完成写作。(尚未完成)
Have you been meeting her lately
你最近跟她见面吗？(强调动作的重复)
Have you met her lately
你最近跟她见过面吗？(强调结果)
单句写作
①她一直在做作业。
She _______________________________________________________________.
②她的眼睛红红的，显然哭了很长时间。
Her eyes are red．It's obvious that she ____________________ for a long time．
③自从上个星期天开始就一直下雪。
________________________ since last Sunday．
④你的衣服满是灰尘，我想你一直在打扫教室吧。
Your clothes are covered with dust．You ____________________________，I think．
⑤自从2019年以来，我姐姐就一直在学英语。
My sister ____________________________ since 2019．
三、不能用现在完成进行时的情况
1．see，hear，know，have，like，be等状态动词不能用于现在完成进行时，只能用现在完成时。
他已经感冒两个星期了。
He has been having a cold for two weeks． (×)
He has had a cold for two weeks． (√)
2．不具有延续意义的动词，如finish，come，go等不能用于现在完成进行时，但是可用于现在完成时。
约翰已经回家了。
John has been coming home． (×)
John has come home． (√)
单句写作
①他已经写了一封信。
He __________________________________________________________________.
②他一直在写一封信。
He __________________________________________________________________.
③我在图书馆见过他。
I ________________________________________________________________.
④我经常在图书馆看见他。
I ___________________________________________________________________.
⑤这个懒孩子在床上躺了一天。
The lazy kid _________________________________________________________.
⑥这个懒孩子在床上躺了一天了。
The lazy kid ___________________________________________________________.
1．(教材原句)I pull off the headset and I'm back in my living room．
pull off 脱下；(成功地)完成；驶离
pull away (车辆等)驶离；开走
pull in (车辆等)进站；停靠
pull out 驶出车站；撤离
pull through 恢复健康；渡过难关
pull up 拔起；停下来；阻止
pull over 把……开到路边；靠岸
pull together 齐心协力；通力合作
单句语法填空/单句写作
①The train pulled ____________ and all the passengers got off．
②Everyone was very concerned about whether he would pull ____________ or not．
③(读后续写之主旨升华)只要我们齐心协力，就没有我们征服不了的山顶。
________________________________，there's no mountain top we can't conquer．
④(读后续写之动作描写)注意到在我们前面有一辆车翻了，我爸爸把车停在路边，走上前去看看他是否能帮忙。
Noticing a car was upside in front of us，my father ________________________ to see whether he could help．
2．(教材原句)You are a hotel operator who wants to build a hotel on some forested land．
*operator n．经营者；操作员[operate v．(使)运行；(使)运转；操作，使用；起作用，奏效；经营；动手术 operation n．运转；操作；业务；手术]
(1)operate on... 给……做手术
(2)carry out/do/perform an operation on... 给……进行手术
put/bring sth．into operation 实施；使……运转；启用
come into operation 开始工作；开始生效
单句语法填空/单句写作
①The bus ____________ (operate) announced that there would be a delay due to traffic．
②You'd better carefully read the ________ (operate) instructions before using the machine．
③(应用文写作之环境保护)为了阻止环境继续受到污染，一项新政策将于下个月开始实施。
To keep the environment from being continually polluted，a new policy will ________________________ next month．
④心脏手术非常成功，病人恢复得不错。
____________________ was a great success and the patient is recovering well．
3．(教材原句)However，the local people worry that building the hotel is not eco-friendly and will disturb the wildlife...
*disturb v．干扰，扰乱(disturbed adj．心神不宁的；心烦意乱的；有精神病的；不幸的
disturbing adj．令人不安的；引起烦恼的；引起恐慌的 disturbance n．打扰)
(1)It's disturbing that... 令人不安的是……
(2)be disturbed about... 因……而感到心神不安
be mentally disturbed 精神不安
be disturbed to do sth． 对做某事感到不安
(3)Don't disturb! 请勿打扰！
单句语法填空/单句写作
①We were very ____________ (disturb) at the loud noise made by the working machines throughout the night．
②The ____________ (disturb) behavior of the stranger in the park made people feel uneasy．
③对不起，打扰一下，我能跟你谈一会儿吗？
________________________，but can I talk to you for a moment
④(应用文写作之环境保护)如此多的野生动物因森林砍伐而失去栖息地，这非常令人不安。
________________________ so many wild animals are losing their habitats due to deforestation．
词汇 1．economy n．经济 2．jungle n．(热带)丛林
微练 1．共享经济已经改变了人们消费和互动的方式。 ________________________ has changed the way people consume and interact． 2．为了农业而砍伐丛林正在引发严重的环境问题。 ________________________________________________________________________ for agriculture is causing serious environmental problems．
(教材原句)Here in our city，there is a heated discussion about whether a hotel should be built at White Beach．
*whether引导的名词性从句
句中whether是连词，引导宾语从句，作介词about的宾语。whether还可以引导主语从句、表语从句和同位语从句。只用whether的情况：在宾语从句中与or not连用时；引导表语从句、同位语从句、主语从句或用在介词之后或动词不定式之前时。
单句写作
①(读后续写之主旨升华)即使我们失败了也没有关系。关键在于我们是否能从这次经历中学到些什么。
It doesn't matter if we fail．The point is
_____________________________________________________________________
_____________________________________________________________________.
②(应用文写作之演讲稿)我们都有这样的疑虑：能否平衡学习与爱好，但经验表明二者可以相互促进。
We all share the doubt ____________________________________，but experience shows they can complement each other．
Period 4
语法精讲
即时训练1
①have been reading ②has been playing ③have been telephoning ④have been discussing ⑤has been considering
即时训练2
①has been doing her homework ②has been crying ③It has been snowing ④have been cleaning the classroom ⑤has been learning English
即时训练3
①has written a letter ②has been writing a letter ③have met him in the library ④have been meeting him in the library ⑤has lain in bed for a whole day ⑥has been lying in bed for a whole day
核心词汇
1．①in ②through ③So long as we pull together ④pulled over and went forward
2．①operator ②operation ③come into operation ④The heart operation
3．①disturbed ②disturbing ③I'm sorry to disturb you ④It is very disturbing that
要点拾遗
1．The sharing economy 2．Cutting down the jungle
句法句式
①whether we can learn something from this experience
②whether we can balance study and hobbies
7 / 7(共82张PPT)
复习任务群一
现代文阅读Ⅰ
把握共性之“新” 打通应考之“脉”
Unit 6
Nurturing nature
Period 4 课时学案 单元语法讲练(Using language)
主题语境 人与自然——自然环境，自然遗产保护
现在完成进行时
美文诵读
David ①has been looking forward to working in China．So he ②has been learning Chinese in the past two years．Until now he ③has mastered about 300 Chinese words and can communicate with Chinese people in simple Chinese．Besides，some Chinese storybooks ④have been bought by his parents and he ⑤has finished reading two of them．
语法体悟
①②使用了现在完成进行时，其构成为have/has＋been＋现在分词，表示从过去某时起一直持续到现在并有可能延续下去的动作。③④⑤使用了现在完成时，其构成为have/has＋过去分词，表示过去发生的动作对现在产生的影响或结果，其被动形式为have/has been done。
一、现在完成进行时的构成、用法和相关的时间状语
1．构成：have/has been doing
2．基本用法：
(1)表示从过去某时开始一直延续到现在的动作。这个动作可能刚停止，也可能继续下去。常与all this time，this week，this month，all night，all the morning，recently等以及“since＋时间点”“for＋时间段”等时间状语连用。
—Excuse me，which movie are you waiting for
——打扰了，你们在等哪部电影？
—The new one．We have been waiting here for more than two hours．
——新上映的那部。我们已经在这儿等了两个多小时了。
(2)表示在一段持续的时间内动作的多次重复，而这个重复的动作在说话时并不一定在进行。
The students have been working hard on their lessons and their efforts will be rewarded with success in the end．
学生们一直在刻苦学习功课，他们的努力最后一定会得到回报。
(3)表示一直到说话时为止的一段时间内一再重复发生的动作。
The teacher has been telling us to be careful all the term．
整个学期，老师一直在告诉我们要细心。
(4)表达较重的感彩。
You have been daydreaming but never make an effort．
你一直在做白日梦，但从不努力。
3．相关的时间状语
现在完成进行时常与all the time，all the morning，these few days，all night等表示一段时间的状语连用。另外，如果表示某一动作的起点，可用since引导的短语或从句；如果表示某一动作的全部时间，可用for引导的短语。
He has been hoping for a raise in salary all the time．
他一直盼着加薪。
They have been quarreling since two days ago．
自从两天前起他们就一直在吵架。
即时训练1 单句语法填空
①I _________________ (read) Hemingway's A Farewell to Arms recently．
②He ________________ (play) tennis since he was eight．
③Hello！At last！I _____________________ (telephone) you all the morning．
④We ____________________ (discuss) the matter all this year．
⑤Now that she is out of work，Lucy ____________________(consider) going back to school recently，but she hasn't decided yet．
have been reading
has been playing
have been telephoning
have been discussing
has been considering
二、现在完成进行时和现在完成时的用法区别
时态 基本语法功能 动作的反复
现在完成进行时 强调动作的持续性 可表示动作的反复
现在完成时 强调动作对现在造成的影响或产生的后果 不表示动作的反复
The car is OK now．I've repaired it．
这辆车现在可以开了，我已经把它修好了。(已经完成)
Marty has been working really hard on his book and he thinks he'll have finished it by Friday．
马蒂一直在努力写书，他认为周五就能完成写作。(尚未完成)
Have you been meeting her lately
你最近跟她见面吗？(强调动作的重复)
Have you met her lately
你最近跟她见过面吗？(强调结果)
即时训练2 单句写作
①她一直在做作业。
She ___________________________．
②她的眼睛红红的，显然哭了很长时间。
Her eyes are red．It's obvious that she _______________ for a long time．
③自从上个星期天开始就一直下雪。
___________________ since last Sunday．
has been doing her homework
has been crying
It has been snowing
④你的衣服满是灰尘，我想你一直在打扫教室吧。
Your clothes are covered with dust．You _________________________
_________，I think．
⑤自从2019年以来，我姐姐就一直在学英语。
My sister _________________________ since 2019．
have been cleaning the
has been learning English
classroom
三、不能用现在完成进行时的情况
1．see，hear，know，have，like，be等状态动词不能用于现在完成进行时，只能用现在完成时。
他已经感冒两个星期了。
He has been having a cold for two weeks． (×)
He has had a cold for two weeks． (√)
2．不具有延续意义的动词，如finish，come，go等不能用于现在完成进行时，但是可用于现在完成时。
约翰已经回家了。
John has been coming home． (×)
John has come home． (√)
即时训练3 单句写作
①他已经写了一封信。
He ____________________．
②他一直在写一封信。
He _________________________．
has written a letter
has been writing a letter
③我在图书馆见过他。
I ___________________________．
④我经常在图书馆看见他。
I ____________________________________．
⑤这个懒孩子在床上躺了一天。
The lazy kid _______________________________．
⑥这个懒孩子在床上躺了一天了。
The lazy kid _____________________________________．
have met him in the library
have been meeting him in the library
has lain in bed for a whole day
has been lying in bed for a whole day
1．(教材原句)I pull off the headset and I'm back in my living room．
pull off 脱下；(成功地)完成；驶离
pull away (车辆等)驶离；开走
pull in (车辆等)进站；停靠
pull out 驶出车站；撤离
pull through 恢复健康；渡过难关
pull up 拔起；停下来；阻止
pull over 把……开到路边；靠岸
pull together 齐心协力；通力合作
即学即练 单句语法填空/单句写作
①The train pulled __ and all the passengers got off．
②Everyone was very concerned about whether he would pull _______ or not．
③(读后续写之主旨升华)只要我们齐心协力，就没有我们征服不了的山顶。
___________________________，there's no mountain top we can't conquer．
in
through
So long as we pull together
④(读后续写之动作描写)注意到在我们前面有一辆车翻了，我爸爸把车停在路边，走上前去看看他是否能帮忙。
Noticing a car was upside in front of us，my father _________________
_________ to see whether he could help．
pulled over and went
forward
2．(教材原句)You are a hotel operator who wants to build a hotel on some forested land．
*operator n．经营者；操作员[operate v．(使)运行；(使)运转；操作，使用；起作用，奏效；经营；动手术 operation n．运转；操作；业务；手术]
(1)operate on... 给……做手术
(2)carry out/do/perform an operation on...
给……进行手术
put/bring sth．into operation 实施；使……运转；启用
come into operation 开始工作；开始生效
即学即练 单句语法填空/单句写作
①The bus ________ (operate) announced that there would be a delay due to traffic．
②You'd better carefully read the _________ (operate) instructions before using the machine．
③(应用文写作之环境保护)为了阻止环境继续受到污染，一项新政策将于下个月开始实施。
To keep the environment from being continually polluted，a new policy will ___________________ next month．
operator
operation
come into operation
④心脏手术非常成功，病人恢复得不错。
___________________ was a great success and the patient is recovering well．
The heart operation
3．(教材原句)However，the local people worry that building the hotel is not eco-friendly and will disturb the wildlife...
*disturb v．干扰，扰乱(disturbed adj．心神不宁的；心烦意乱的；有精神病的；不幸的
disturbing adj．令人不安的；引起烦恼的；引起恐慌的 disturbance n．打扰)
(1)It's disturbing that... 令人不安的是……
(2)be disturbed about... 因……而感到心神不安
be mentally disturbed 精神不安
be disturbed to do sth． 对做某事感到不安
(3)Don't disturb! 请勿打扰！
即学即练 单句语法填空/单句写作
①We were very _________ (disturb) at the loud noise made by the working machines throughout the night．
②The __________ (disturb) behavior of the stranger in the park made people feel uneasy．
③对不起，打扰一下，我能跟你谈一会儿吗？
_________________________，but can I talk to you for a moment
disturbed
disturbing
I'm sorry to disturb you
④(应用文写作之环境保护)如此多的野生动物因森林砍伐而失去栖息地，这非常令人不安。
_____________________ so many wild animals are losing their habitats due to deforestation．
It is very disturbing that
词汇 1．economy n．经济
2．jungle n．(热带)丛林
微练 1．共享经济已经改变了人们消费和互动的方式。
___________________ has changed the way people consume and interact．
2．为了农业而砍伐丛林正在引发严重的环境问题。
_______________________ for agriculture is causing serious environmental problems．
The sharing economy
Cutting down the jungle
(教材原句)Here in our city，there is a heated discussion about whether a hotel should be built at White Beach．
*whether引导的名词性从句
句中whether是连词，引导宾语从句，作介词about的宾语。whether还可以引导主语从句、表语从句和同位语从句。只用whether的情况：在宾语从句中与or not连用时；引导表语从句、同位语从句、主语从句或用在介词之后或动词不定式之前时。
即学即练 单句写作
①(读后续写之主旨升华)即使我们失败了也没有关系。关键在于我们是否能从这次经历中学到些什么。
It doesn't matter if we fail．The point is _________________________
__________________________．
②(应用文写作之演讲稿)我们都有这样的疑虑：能否平衡学习与爱好，但经验表明二者可以相互促进。
We all share the doubt ______________________________________，but experience shows they can complement each other．
whether we can learn
whether we can balance study and hobbies
something from this experience
课时提升作业(十七) (Unit 6 Using language)
(建议用时：45分钟 总分：92.5分)
Ⅰ．品句填词(共5小题；每小题1.5分，满分7.5分)
1．He is a _______________ (环境保护主义者) and often advocates and supports the nature cause．
2．The two men kept talking in a loud voice，which _________ (打扰) the other guests in the coffee shop．
conservationist
disturbed
3．The Chinese _______ (经济) has taken on a new look in the past seventy years．
4．You said you heard something in the ______ (丛林)just now．
5．He is a very clever ________ (经营者) with a sharp mind．
economy
jungle
operator
Ⅱ．单句语法填空(共10小题；每小题1.5分，满分15分)
1．Recently，I ________________ (eat) healthy food as opposed to junk food．
2．Since last month，they _________________ (find) clues in order to draw an accurate conclusion．
3．Mother wants to be a good provider，a role she _________________ (shoulder) since she married Father．
have been eating
have been finding
has been shouldering
4．Astronomers say this is a natural phenomenon that ______________ ___________(happen) for a century．
5．All the staff of the company，who _________________ (work) extra hours these days，hope to finish the project as scheduled．
6．The number of visitors _______________ (rise) steadily since the reopening，despite a sharp decline compared to normal years．
7．In my younger years，my father gave me some advice that I _________________ (turn) over in my mind ever since．
has been
have been working
has been rising
have been turning
happening
8．Shall the kids take a break They _______________ (do) homework in the study for nearly two hours．
9．This is the first time that I ____________ (visit) Xi'an and I am deeply impressed with its ancient buildings．
10．Thanks to your constant encouragement，I _________ (make) great progress in my studies in the past few months．
have been doing
have visited
have made
Ⅲ．完成句子(共5小题；每小题2分，满分10分)
1．汤姆多年来一直在学习英语，现在他的英语口语很流利了。
Tom，who _________________________ for many years，is fluent in spoken English now．
2．这个月我闲暇时一直在参观这个城市的几个博物馆。
I ____________________________________ at my leisure this month．
has been studying English
have been visiting some museums of this city
3．我最近一直在报纸上阅读招聘信息。
I _______________________________________ recruitment from the newspaper recently．
4．由于采取了许多有效措施，环境已经得到了极大的改善。
Because many effective measures have been taken，the environment _______________________．
5．这个小男孩因为玩了一上午的泥巴，浑身脏兮兮的。
The little boy is dirty from head to foot because ____________________
__________ all the morning．
have been reading the information about
has been improved a lot
he has been playing in
the mud
Ⅳ．语法填空(共5小题；每小题1.5分，满分7.5分)
Lately，I 1．__________________ (think) about changing my job because I 2．___________ (become) unsatisfied with the conditions at my company．The company where I 3．_________________ (work) since five years ago 4．_____________ (announce) that it will cut 100 jobs because of the bad economic environment．Although I 5．________________ (not，decide) which job I will take next，I am making preparations for what I will do next．So，do you have any idea for me
have been thinking
have become
have been working
has announced
haven't decided
Ⅰ．阅读理解(共4小题；每小题2.5分，满分10分)
Around 40 million tonnes of electronic waste，known as e-waste，is produced every year．This includes electrical or electronic equipment that has been discarded．But where does it all go In the US alone，100 million mobile phones，41 million computers and over 20 million televisions are thrown into landfills in a year．Even for standard waste this is a big headache，because any materials that are buried in the ground can't be easily recovered and recycled．Recycling electronics can save energy and means that less of Earth's natural resources need to be mined．
Failing to recycle e-waste is extremely damaging the environment due to the nature of the materials used in modern devices．While heavy metals and chemicals improve a device's safety，these components become poisonous if they're not dealt with properly．Your old phones，Gameboys，kettles，microwaves and more can end up in landfills，leaking their harmful contents into the soil，water and air．Not only does this kill wildlife and destroy ecosystems，but the accumulation of poison can impact human health too．As heavy metals and chemicals flow into lakes and rivers，drinking water becomes polluted．These poisons spread through the soil，impacting the health of crops and animals that people also rely on．
In some western countries，e-waste isn't hidden out of sight in landfills but is burnt in giant，open junkyards．They even ship waste electronics to other countries to deal with，and this often ends up in dumps across Africa and Asia．Workers in these places are exposed to polluted lands and chemical gas．
It is urgent that we should reduce the damaging and unsustainable side of e-waste production．Rare earth metals，some plastics and chemicals can be fed into the next generation of electronics．The steps to proper recycling of e-waste are extensive and need large investment，but more and more countries around the world are turning to e-waste recycling．
【语篇解读】 本文是一篇说明文。文章主要介绍的是电子垃圾造成的环境污染。现在很多国家正通过回收电子垃圾来减少电子垃圾带来的危害。
1．What does the underlined word“discarded”in paragraph 1 mean
A．Repaired． B．Protected．
C．Used． D．Abandoned．
√
D [词义猜测题。根据画线单词后的“But where does it...into landfills in a year．”可知，每年有很多的电器和电子产品被扔进了垃圾填埋场。由此可知，有很多的电器或者电子产品被丢弃，所以画线单词的意思与“丢弃”意义相近。]
2．What can be learned from paragraph 2
A．E-waste has an impermanent effect on the environment．
B．E-waste may do harm to both ecosystems and humans．
C．Heavy metals and chemicals are poisonous to the users．
D．Burying e-waste into landfills is an effective way to recycle．
√
B [细节理解题。根据第二段中的“Not only does this...that people also rely on．”可知，电子垃圾可能对生态系统和人类都有害。]
3．As for some western countries'actions，the author is ________．
A．supportive B．objective
C．concerned D．uncertain
√
C [观点态度题。根据第三段中的“They even ship waste...lands and chemical gas．”可知，一些西方国家把废弃的电子产品运往其他国家处理而最终被倾倒在非洲和亚洲各地，而这些地方的工人暴露在被污染的土地和化学气体中，这会给这些工人带来伤害。由此推知，作者对一些西方国家的做法表示担忧。]
4．What might the author continue to talk about
A．Solutions to destroying e-waste．
B．Ways to recycle e-waste properly．
C．Applications of recycled materials．
D．Investments in restoring ecosystems．
√
B [推理判断题。根据尾段中的“The steps to proper...are turning to e-waste recycling．”可知，现在世界上越来越多的国家开始转向电子垃圾的回收。由此推知，作者接下来应会谈论恰当回收电子垃圾的方法。]
Ⅱ．阅读七选五(共5小题；每小题2.5分，满分12.5分)
Should We Create More National Parks to
Save Endangered Animals
Don't you find it worrying that more and more species of animals are in real danger of becoming extinct 1 And I think the best way to do this is for governments to create more national parks．
2 If this environment is destroyed—for example，when farmers clear a forest for new fields，or trees are cut down for making money—many animals are unable to survive，and more species are likely to become extinct．
In addition，national parks protect animals from the danger of being hunted．A major reason why many species are endangered is that the animals are killed by hunters．They hunt animals to make money． 3 .
On the other hand，some people fight against the creation of national parks because they consider it wrong to interfere with nature．They believe that wild animals are happier living in their natural environment． 4 They also point out that a few species are more likely to produce young animals in the wild than in national parks．
All in all，though，these disadvantages are far less important than the benefits of national parks． 5 As a matter of fact，they protect animals from their greatest enemies，that is，human beings．
A．They say though the animals may face danger，they enjoy a free life．
B．Firstly，national parks protect the animals'natural environment．
C．To begin with，animals are important to humans．
D．I personally believe that we must save these animals．
E．There is a heated discussion about whether to create more national parks．
F．These parks allow animals to live in a safe environment．
G．Some hunters even hunt animals simply for sport．
【语篇解读】 本文是一篇说明文。作者建议建立更多的国家公园来保护濒临灭绝的野生动物，并阐述了理由。
1．D [空前一句讲述越来越多的动物濒临灭绝，空后一句“我认为最好的办法是政府建立更多的国家公园”，而D选项“就我个人而言，我认为我们必须拯救这些动物”承接上下文，符合语境。故选D。]
2．B [由空后“If this environment is destroyed...become extinct．”可知，要保护动物，首先要保护动物生活的自然环境，B选项“首先，国家公园保护动物的自然环境。”符合语境。故选B。]
3．G [本段讲述国家公园可以避免动物被猎杀。接下来讲了动物被猎杀的原因，G选项“有些猎人甚至仅仅是为了运动而猎杀动物。”是其中一个原因。故选G。]
4．A [由空前“They believe that wild animals are happier living in their natural environment．”可知，他们认为野生动物在自然环境中生活更开心。A选项“他们说尽管这些动物可能会面临危险，但是它们喜欢一种自由的生活”承接上文，符合语境。故选A。]
5．F [由空前“All in all，though，these disadvantages...national parks．”和空后“As a matter of fact，they protect animals...human beings．”可知，F选项“这些公园使动物生活在一种安全的环境中”符合语境。故选F。]
Ⅲ．完形填空(共15小题；每小题1分，满分15分)
One evening，Catherine was at home as usual．As her 1 . swung between what she was going to do with her life and her dinner plans for the evening，she was unexpectedly 2 by an urgent call from her sister“Get over here！Turn on NBC and check these guys out．They are just like you...”One Internet message and a phone interview later，Catherine 3 herself on a bus with 8 strangers in the middle of the sweltering (闷热的) desert heat of Utah，picking up trash and 4 awareness of zero-waste and climate change．
With a deep 5 of the environment and a desire to make a 6 ，Catherine，Davey，and a group of 7 “environmental pick-up artists”went on a coast to coast road side trash pick-up．As they walked，sometimes only 8 0.9 miles on an entire day，they 9 and steadily made their way across the United States for three years，picking up a total of 201，678 pounds of trash．
Catherine and Davey 10 wonderful stories of hope and inspiration with us that fuelled their efforts to continue their journey．After spending weeks silently
11 how she would have enough money to fly home for her two-week spring break，Catherine found a blank，unidentified envelope 12 with $850 cash in the desert，just enough to get her home and back．After their bus 13 outside of Denver，they unexpectedly got 14 and arrived in Yosemite National Park three weeks later，just in time for the“Yosemite Facelift(整容手术)”where volunteers from all over the state came together with a 15 of cleaning up trash all over the park．Together，their team learned to simply devote themselves to their task，and surrender to (听任于) the journey．
【语篇解读】 本文是一篇记叙文。文章讲述了为了保护环境，一群自称“环保拾荒艺术家”的人沿着海岸公路捡垃圾的故事，他们的故事也激励了更多的志愿者加入这样的行动中来。
1．A．memory B．balance
C．thoughts D．position
√
C [考查名词。根据句意可知，此处是她的“思绪”在她的生活和晚餐计划之间摇摆不定。故选C。]
2．A．blamed B．interrupted
C．moved D．frightened
√
B [考查动词。根据前一句可知，她的思绪正在她的生活和晚餐计划之间摇摆不定，姐姐的电话“中断”了她的思绪。故选B。]
3．A．rejected B．cheered
C．found D．taught
√
C [考查动词。根据后文可知，凯瑟琳发现自己和8个陌生人坐在一辆公共汽车上，置身于犹他州酷热的沙漠之中。故选C。]
4．A．abandoning B．shaking
C．raising D．illustrating
√
C [考查动词。凯瑟琳及同行人在沙漠中捡垃圾的行为，是为了提高人们的环保意识。raise awareness意为“提高意识”。故选C。]
5．A．pride B．trust
C．tension D．love
√
D [考查名词。这里强调凯瑟琳等人的行为动机——对环境深深的爱。故选D。]
6．A．difference B．promise
C．mistake D．plan
√
A [考查名词。make a difference“有影响，有关系”，此处表示“想要有所作为的愿望”。故选A。]
7．A．self-correcting B．self-described
C．self-centred D．self-respecting
√
B [考查形容词。他们把自己描述为“环保拾荒艺术家”。故选B。]
8．A．driving B．fixing
C．riding D．covering
√
D [考查动词。此处表示“走了0.9英里路”。故选D。]
9．A．slowly B．secretly
C．helplessly D．frequently
√
A [考查副词。有时他们一整天就走了0.9英里路，所以比较缓慢。故选A。]
10．A．heard B．shared
C．wrote D．read
√
B [考查动词。凯瑟琳和戴维将自己经历过的故事告诉我们，属于“分享”。故选B。]
11．A．worrying about B．replying to
C．depending on D．meeting with
√
A [考查动词短语。几个星期以来，凯瑟琳一直在默默地担心自己是否有足够的钱乘飞机回家过两个星期的春假，所以应该是“担忧”。故选A。]
12．A．equipped B．supplied
C．decorated D．filled
√
D [考查动词。她在沙漠里发现了一个空白的、身份不明的信封，里面装着850美元现金。be filled with“装满”。故选D。]
13．A．set off B．broke down
C．headed for D．held on
√
B [考查动词短语。这里表示“他们的车坏了”。故选B。]
14．A．rest B．practice
C．understanding D．help
√
D [考查名词。当他们的车抛锚时，有人向他们提供了“帮助”。故选D。]
15．A．purpose B．question
C．decision D．lesson
√
A [考查名词。这里表示“带着清扫公园里所有垃圾的目的，他们聚到了一起”。with a purpose of意为“带着……目的”。故选A。]
Ⅳ．语法填空(共10小题；每小题1.5分，满分15分)
Scientists from Utah recently studied 25 vervet monkeys on a nature preserve in South Africa 1．____________(see) how they responded to fire．Countless living things，including humans，have relied on fire throughout history．2．_____ how early humans behaved around fire，and when they started to control it for their own use，remains a mystery．The team hoped the monkeys could provide clues．
to see
But
Vervet monkeys communicate using a variety of calls．These different calls help the monkeys protect 3．____________(they) from predators (食肉动物)．For example，when spotting a snake，the monkeys make one type of call and scan the bush．When spotting a leopard，they make a different call and climb into the tree．
themselves
The scientists spent more than 100 hours over six months watching the monkeys．During that time，workers at the preserve lit small fires to help the ecosystem．4．____________(burn) trees and grass enrich the soil，thus 5．________(help) new plants and trees grow．The scientists observed how the monkeys behaved before，during，and after the fires．
Burned
helping
While the fires burned，the monkeys stayed calm and 6．____________(simple)relocated if the flames got too close．Once the fires were out，the monkeys seemed to feel 7．________(safe)and had fewer reactions to predators in the areas 8．____________ had burned．They explored places they had never been to before they were now burned．The team concluded that the fires 9．_________(clear)out tall grass that once hid predators．After the fires，fewer predators
simply
safer
that/which
had cleared
approached these open areas，and the monkeys could easily spot any that tried to come close．This study brings experts 10．___ step closer to understanding how early humans learned to use fire．
【语篇解读】 本文是一篇说明文。来自犹他州的科学家最近在南非的一个自然保护区研究了25只长尾黑颚猴，看它们是如何应对火灾的。文章介绍了研究过程以及研究的意义。
a
1．to see [考查非谓语动词。分析句子结构可知，本句已有谓语动词studied，所以see用非谓语形式。结合语境可知，所填词与空后部分构成不定式短语作目的状语。故填to see。]
2．But [考查连词。结合前后文语境可知，此处为转折关系，应用连词but，句首单词首字母要大写。故填But。]
3．themselves [考查代词。结合前后文语境可知，是猴子保护它们自己，应用反身代词。故填themselves。]
4．Burned [考查词性转换。修饰名词trees and grass应用过去分词burned用作形容词，作定语，句首单词首字母要大写。故填Burned。]
5．helping [考查非谓语动词。句中已有谓语动词enrich，所以此处用非谓语动词，主语和help之间构成主动关系，用动词-ing形式作结果状语。故填helping。]
6．simply [考查词性转换。修饰动词relocated应用副词simply，作状语。故填simply。]
7．safer [考查比较级。结合句意及and连接并列成分中的fewer可知，表示“更安全的”应用safe的比较级形式。故填safer。]
8．that/which [考查定语从句。此处引导定语从句，修饰先行词areas，先行词在从句中作主语，指物，故用关系代词that或which。故填that/which。]
9．had cleared [考查动词的时态。结合语境，“清除”发生在“得出结论”之前，即“过去的过去”，应用过去完成时。故填had cleared。]
10．a [考查冠词。step为可数名词，此处表示“更近一步”，泛指，且step以辅音音素开头。故填a。]
谢 谢！课时提升作业(十七)
(Unit 6 Using language)
(建议用时：45分钟 总分：92.5分)
Ⅰ．品句填词(共5小题；每小题1.5分，满分7.5分)
1．He is a ____________(环境保护主义者) and often advocates and supports the nature cause．
2．The two men kept talking in a loud voice，which ____________(打扰) the other guests in the coffee shop．
3．The Chinese ____________(经济) has taken on a new look in the past seventy years．
4．You said you heard something in the ____________(丛林)just now．
5．He is a very clever ____________ (经营者) with a sharp mind．
Ⅱ．单句语法填空(共10小题；每小题1.5分，满分15分)
1．Recently，I ________________ (eat) healthy food as opposed to junk food．
2．Since last month，they ________________ (find) clues in order to draw an accurate conclusion．
3．Mother wants to be a good provider，a role she ______________ (shoulder) since she married Father．
4．Astronomers say this is a natural phenomenon that ________________ (happen) for a century．
5．All the staff of the company，who ________________ (work) extra hours these days，hope to finish the project as scheduled．
6．The number of visitors ________________ (rise) steadily since the reopening，despite a sharp decline compared to normal years．
7．In my younger years，my father gave me some advice that I ________________ (turn) over in my mind ever since．
8．Shall the kids take a break They ________________ (do) homework in the study for nearly two hours．
9．This is the first time that I ________________ (visit) Xi'an and I am deeply impressed with its ancient buildings．
10．Thanks to your constant encouragement，I ________________ (make) great progress in my studies in the past few months．
Ⅲ．完成句子(共5小题；每小题2分，满分10分)
1．汤姆多年来一直在学习英语，现在他的英语口语很流利了。
Tom，who ________________________ for many years，is fluent in spoken English now．
2．这个月我闲暇时一直在参观这个城市的几个博物馆。
I ________________________________________________ at my leisure this month．
3．我最近一直在报纸上阅读招聘信息。
I ____________________________________ recruitment from the newspaper recently．
4．由于采取了许多有效措施，环境已经得到了极大的改善。
Because many effective measures have been taken，the environment ________________________．
5．这个小男孩因为玩了一上午的泥巴，浑身脏兮兮的。
The little boy is dirty from head to foot because ________________________ all the morning．
Ⅳ．语法填空(共5小题；每小题1.5分，满分7.5分)
Lately，I 1．____________________ (think) about changing my job because I 2．________________ (become) unsatisfied with the conditions at my company．The company where I 3．________________ (work) since five years ago 4．________________ (announce) that it will cut 100 jobs because of the bad economic environment．Although I 5．________________ (not，decide) which job I will take next，I am making preparations for what I will do next．So，do you have any idea for me
Ⅰ．阅读理解(共4小题；每小题2.5分，满分10分)
Around 40 million tonnes of electronic waste，known as e-waste，is produced every year．This includes electrical or electronic equipment that has been discarded．But where does it all go In the US alone，100 million mobile phones，41 million computers and over 20 million televisions are thrown into landfills in a year．Even for standard waste this is a big headache，because any materials that are buried in the ground can't be easily recovered and recycled．Recycling electronics can save energy and means that less of Earth's natural resources need to be mined．
Failing to recycle e-waste is extremely damaging the environment due to the nature of the materials used in modern devices．While heavy metals and chemicals improve a device's safety，these components become poisonous if they're not dealt with properly．Your old phones，Gameboys，kettles，microwaves and more can end up in landfills，leaking their harmful contents into the soil，water and air．Not only does this kill wildlife and destroy ecosystems，but the accumulation of poison can impact human health too．As heavy metals and chemicals flow into lakes and rivers，drinking water becomes polluted．These poisons spread through the soil，impacting the health of crops and animals that people also rely on．
In some western countries，e-waste isn't hidden out of sight in landfills but is burnt in giant，open junkyards．They even ship waste electronics to other countries to deal with，and this often ends up in dumps across Africa and Asia．Workers in these places are exposed to polluted lands and chemical gas．
It is urgent that we should reduce the damaging and unsustainable side of e-waste production．Rare earth metals，some plastics and chemicals can be fed into the next generation of electronics．The steps to proper recycling of e-waste are extensive and need large investment，but more and more countries around the world are turning to e-waste recycling．
1．What does the underlined word“discarded”in paragraph 1 mean
A．Repaired． B．Protected．
C．Used． D．Abandoned．
2．What can be learned from paragraph 2
A．E-waste has an impermanent effect on the environment．
B．E-waste may do harm to both ecosystems and humans．
C．Heavy metals and chemicals are poisonous to the users．
D．Burying e-waste into landfills is an effective way to recycle．
3．As for some western countries' actions，the author is ________．
A．supportive B．objective
C．concerned D．uncertain
4．What might the author continue to talk about
A．Solutions to destroying e-waste．
B．Ways to recycle e-waste properly．
C．Applications of recycled materials．
D．Investments in restoring ecosystems．
Ⅱ．阅读七选五(共5小题；每小题2.5分，满分12.5分)
Should We Create More National Parks to
Save Endangered Animals
Don't you find it worrying that more and more species of animals are in real danger of becoming extinct 1 And I think the best way to do this is for governments to create more national parks．
2 If this environment is destroyed—for example，when farmers clear a forest for new fields，or trees are cut down for making money—many animals are unable to survive，and more species are likely to become extinct．
In addition，national parks protect animals from the danger of being hunted．A major reason why many species are endangered is that the animals are killed by hunters．They hunt animals to make money． 3
On the other hand，some people fight against the creation of national parks because they consider it wrong to interfere with nature．They believe that wild animals are happier living in their natural environment． 4 They also point out that a few species are more likely to produce young animals in the wild than in national parks．
All in all，though，these disadvantages are far less important than the benefits of national parks． 5 As a matter of fact，they protect animals from their greatest enemies，that is，human beings．
A．They say though the animals may face danger，they enjoy a free life．
B．Firstly，national parks protect the animals' natural environment．
C．To begin with，animals are important to humans．
D．I personally believe that we must save these animals．
E．There is a heated discussion about whether to create more national parks．
F．These parks allow animals to live in a safe environment．
G．Some hunters even hunt animals simply for sport．
Ⅲ．完形填空(共15小题；每小题1分，满分15分)
One evening，Catherine was at home as usual．As her 1 swung between what she was going to do with her life and her dinner plans for the evening，she was unexpectedly 2 by an urgent call from her sister“Get over here！Turn on NBC and check these guys out．They are just like you...”One Internet message and a phone interview later，Catherine 3 herself on a bus with 8 strangers in the middle of the sweltering(闷热的) desert heat of Utah，picking up trash and 4 awareness of zero-waste and climate change．
With a deep 5 of the environment and a desire to make a 6 ，Catherine，Davey，and a group of 7 “environmental pick-up artists”went on a coast to coast road side trash pick-up．As they walked，sometimes only 8 0.9 miles on an entire day，they 9 and steadily made their way across the United States for three years，picking up a total of 201，678 pounds of trash．
Catherine and Davey 10 wonderful stories of hope and inspiration with us that fuelled their efforts to continue their journey．After spending weeks silently 11 how she would have enough money to fly home for her two-week spring break，Catherine found a blank，unidentified envelope 12 with $850 cash in the desert，just enough to get her home and back．After their bus 13 outside of Denver，they unexpectedly got 14 and arrived in Yosemite National Park three weeks later，just in time for the“Yosemite Facelift(整容手术)”where volunteers from all over the state came together with a 15 of cleaning up trash all over the park．Together，their team learned to simply devote themselves to their task，and surrender to(听任于) the journey．
1．A．memory B．balance
C．thoughts D．position
2．A．blamed B．interrupted
C．moved D．frightened
3．A．rejected B．cheered
C．found D．taught
4．A．abandoning B．shaking
C．raising D．illustrating
5．A．pride B．trust
C．tension D．love
6．A．difference B．promise
C．mistake D．plan
7．A．self-correcting B．self-described
C．self-centred D．self-respecting
8．A．driving B．fixing
C．riding D．covering
9．A．slowly B．secretly
C．helplessly D．frequently
10．A．heard B．shared
C．wrote D．read
11．A．worrying about B．replying to
C．depending on D．meeting with
12．A．equipped B．supplied
C．decorated D．filled
13．A．set off B．broke down
C．headed for D．held on
14．A．rest B．practice
C．understanding D．help
15．A．purpose B．question
C．decision D．lesson
Ⅳ．语法填空(共10小题；每小题1.5分，满分15分)
Scientists from Utah recently studied 25 vervet monkeys on a nature preserve in South Africa 1．____________(see) how they responded to fire．Countless living things，including humans，have relied on fire throughout history．2．____________ how early humans behaved around fire，and when they started to control it for their own use，remains a mystery．The team hoped the monkeys could provide clues．
Vervet monkeys communicate using a variety of calls．These different calls help the monkeys protect 3．____________(they)from predators(食肉动物)．For example，when spotting a snake，the monkeys make one type of call and scan the bush．When spotting a leopard，they make a different call and climb into the tree．
The scientists spent more than 100 hours over six months watching the monkeys．During that time，workers at the preserve lit small fires to help the ecosystem．4．____________(burn) trees and grass enrich the soil，thus 5．____________(help) new plants and trees grow．The scientists observed how the monkeys behaved before，during，and after the fires．
While the fires burned，the monkeys stayed calm and 6．____________(simple)relocated if the flames got too close．Once the fires were out，the monkeys seemed to feel 7．________(safe)and had fewer reactions to predators in the areas 8．____________ had burned．They explored places they had never been to before they were now burned．The team concluded that the fires 9．____________(clear)out tall grass that once hid predators．After the fires，fewer predators approached these open areas，and the monkeys could easily spot any that tried to come close．This study brings experts 10．____________ step closer to understanding how early humans learned to use fire．
课时提升作业(十七)
基础过关
Ⅰ．1．conservationist 2．disturbed 3．economy 4．jungle 5．operator
Ⅱ．1．have been eating 2．have been finding 3．has been shouldering 4．has been happening 5．have been working 6．has been rising 7．have been turning 8．have been doing 9．have visited 10．have made
Ⅲ．1．has been studying English 2．have been visiting some museums of this city 3．have been reading the information about 4．has been improved a lot 5．he has been playing in the mud
Ⅳ．1．have been thinking 2．have become 3．have been working 4．has announced 5．haven't decided
能力提升
Ⅰ．
1 2 3 4
D B C B
Ⅱ．
1 2 3 4 5
D B G A F
Ⅲ．
1 2 3 4 5 6 7 8
C B C C D A B D
9 10 11 12 13 14 15
A B A D B D A
Ⅳ．1．to see 2．But 3．themselves 4．Burned 5．helping 6．simply 7．safer 8．that/which 9．had cleared 10．a
能力提升
Ⅰ．【语篇解读】 本文是一篇说明文。文章主要介绍的是电子垃圾造成的环境污染。现在很多国家正通过回收电子垃圾来减少电子垃圾带来的危害。
1．D [词义猜测题。根据画线单词后的“But where does it...into landfills in a year．”可知，每年有很多的电器和电子产品被扔进了垃圾填埋场。由此可知，有很多的电器或者电子产品被丢弃，所以画线单词的意思与“丢弃”意义相近。]
2．B [细节理解题。根据第二段中的“Not only does this...that people also rely on．”可知，电子垃圾可能对生态系统和人类都有害。]
3．C [观点态度题。根据第三段中的“They even ship waste...lands and chemical gas．”可知，一些西方国家把废弃的电子产品运往其他国家处理而最终被倾倒在非洲和亚洲各地，而这些地方的工人暴露在被污染的土地和化学气体中，这会给这些工人带来伤害。由此推知，作者对一些西方国家的做法表示担忧。]
4．B [推理判断题。根据尾段中的“The steps to proper...are turning to e-waste recycling．”可知，现在世界上越来越多的国家开始转向电子垃圾的回收。由此推知，作者接下来应会谈论恰当回收电子垃圾的方法。]
Ⅱ．【语篇解读】 本文是一篇说明文。作者建议建立更多的国家公园来保护濒临灭绝的野生动物，并阐述了理由。
1．D [空前一句讲述越来越多的动物濒临灭绝，空后一句“我认为最好的办法是政府建立更多的国家公园”，而D选项“就我个人而言，我认为我们必须拯救这些动物”承接上下文，符合语境。故选D。]
2．B [由空后“If this environment is destroyed...become extinct．”可知，要保护动物，首先要保护动物生活的自然环境，B选项“首先，国家公园保护动物的自然环境。”符合语境。故选B。]
3．G [本段讲述国家公园可以避免动物被猎杀。接下来讲了动物被猎杀的原因，G选项“有些猎人甚至仅仅是为了运动而猎杀动物。”是其中一个原因。故选G。]
4．A [由空前“They believe that wild animals are happier living in their natural environment．”可知，他们认为野生动物在自然环境中生活更开心。A选项“他们说尽管这些动物可能会面临危险，但是它们喜欢一种自由的生活”承接上文，符合语境。故选A。]
5．F [由空前“All in all，though，these disadvantages...national parks．”和空后“As a matter of fact，they protect animals...human beings．”可知，F选项“这些公园使动物生活在一种安全的环境中”符合语境。故选F。]
Ⅲ．【语篇解读】 本文是一篇记叙文。文章讲述了为了保护环境，一群自称“环保拾荒艺术家”的人沿着海岸公路捡垃圾的故事，他们的故事也激励了更多的志愿者加入这样的行动中来。
1．C [考查名词。根据句意可知，此处是她的“思绪”在她的生活和晚餐计划之间摇摆不定。故选C。]
2．B [考查动词。根据前一句可知，她的思绪正在她的生活和晚餐计划之间摇摆不定，姐姐的电话“中断”了她的思绪。故选B。]
3．C [考查动词。根据后文可知，凯瑟琳发现自己和8个陌生人坐在一辆公共汽车上，置身于犹他州酷热的沙漠之中。故选C。]
4．C [考查动词。凯瑟琳及同行人在沙漠中捡垃圾的行为，是为了提高人们的环保意识。raise awareness意为“提高意识”。故选C。]
5．D [考查名词。这里强调凯瑟琳等人的行为动机——对环境深深的爱。故选D。]
6．A [考查名词。make a difference“有影响，有关系”，此处表示“想要有所作为的愿望”。故选A。]
7．B [考查形容词。他们把自己描述为“环保拾荒艺术家”。故选B。]
8．D [考查动词。此处表示“走了0.9英里路”。故选D。]
9．A [考查副词。有时他们一整天就走了0.9英里路，所以比较缓慢。故选A。]
10．B [考查动词。凯瑟琳和戴维将自己经历过的故事告诉我们，属于“分享”。故选B。]
11．A [考查动词短语。几个星期以来，凯瑟琳一直在默默地担心自己是否有足够的钱乘飞机回家过两个星期的春假，所以应该是“担忧”。故选A。]
12．D [考查动词。她在沙漠里发现了一个空白的、身份不明的信封，里面装着850美元现金。be filled with“装满”。故选D。]
13．B [考查动词短语。这里表示“他们的车坏了”。故选B。]
14．D [考查名词。当他们的车抛锚时，有人向他们提供了“帮助”。故选D。]
15．A [考查名词。这里表示“带着清扫公园里所有垃圾的目的，他们聚到了一起”。with a purpose of意为“带着……目的”。故选A。]
Ⅳ．【语篇解读】 本文是一篇说明文。来自犹他州的科学家最近在南非的一个自然保护区研究了25只长尾黑颚猴，看它们是如何应对火灾的。文章介绍了研究过程以及研究的意义。
1．to see [考查非谓语动词。分析句子结构可知，本句已有谓语动词studied，所以see用非谓语形式。结合语境可知，所填词与空后部分构成不定式短语作目的状语。故填to see。]
2．But [考查连词。结合前后文语境可知，此处为转折关系，应用连词but，句首单词首字母要大写。故填But。]
3．themselves [考查代词。结合前后文语境可知，是猴子保护它们自己，应用反身代词。故填themselves。]
4．Burned [考查词性转换。修饰名词trees and grass应用过去分词burned用作形容词，作定语，句首单词首字母要大写。故填Burned。]
5．helping [考查非谓语动词。句中已有谓语动词enrich，所以此处用非谓语动词，主语和help之间构成主动关系，用动词-ing形式作结果状语。故填helping。]
6．simply [考查词性转换。修饰动词relocated应用副词simply，作状语。故填simply。]
7．safer [考查比较级。结合句意及and连接并列成分中的fewer可知，表示“更安全的”应用safe的比较级形式。故填safer。]
8．that/which [考查定语从句。此处引导定语从句，修饰先行词areas，先行词在从句中作主语，指物，故用关系代词that或which。故填that/which。]
9．had cleared [考查动词的时态。结合语境，“清除”发生在“得出结论”之前，即“过去的过去”，应用过去完成时。故填had cleared。]
10．a [考查冠词。step为可数名词，此处表示“更近一步”，泛指，且step以辅音音素开头。故填a。]
1 / 7
