（进阶篇）2021-2022学年牛津译林版八年级英语上册 Unit 5（含答案）练习题

这是一份（进阶篇）2021-2022学年牛津译林版八年级英语上册 Unit 5（含答案）练习题，共16页。
（进阶篇）2021-2022学年上学期初中英语牛津译林新版八年级同步分层作业 Unit 5
一．词汇应用（共5小题）
1．Blood is much （thick）than water.
2．Lucy， （not be） shy!Believe in yourself.
3．We won't go climbing if Lucy （not be） free next week.
4．This kind of shoes （sell） well in this shop.
5．We should try our best （stop） people from （cut） down forests.
二．句型转换（共5小题）
6．He didn't go to school because he was ill．（同义句）
He didn't go to school his illness．
7．The magazine beside the TV is about how to make cakes．（对画线部分提问）
is about how to make cakes？
8．A male wolf always protects its baby.（改为复数句）
Male always .
9．We must take action.We want to keep the water clean.（合并为一句）
We must take action the water clean.
10．If we don't be quick，we cannot catch the early bus. （同义句转换）
quick，and we will catch the early bus.
三．完形填空（共1小题）
11．Birds can see colours，just as people do．Birds need to see colours when they fly because they need to find places to land（着陆）．Colours help them know（1） the place is and what it is like so that they can catch flying things in the air or land on something they think safe．
Birds can"tell"the differences between colours．But for some（2） animals，such as wolves，the world looks like a black and white photo．Wolves look for food mainly by（3） ．
They can hear（4） when the animals they hunt move．But other animals seem to know this．For example，a rabbit will stop moving when it finds there is something（5） ．Then the wolves（6） not find it at all．However，birds are better than wolves in these ways．They can see dead insects from far away．
Some birds' eyesight is（7） than people's．They can see small insects（8） they fly in the sky．Because they are able to（9） colours，they can find food easily and（10） if（是否） there are other animals that are dangerous to them．
1．A．how soon
B．how far
C．how long
D．how fast
2．A．other
B．another
C．others
D．the other
3．A．shouting
B．listening
C．eating
D．moving
4．A．slow
B．slowly
C．clear
D．clearly
5．A．dangerous
B．safe
C．slow
D．fast
6．A．should
B．must
C．may
D．need
7．A．bigger
B．smaller
C．worse
D．better
8．A．when
B．till
C．where
D．how
9．A．paint
B．see
C．read
D．watch
10．A．find
B．find out
C．look
D．look for
四．阅读理解（共2小题）
12．More than anything else in the world，Lion liked being king of the jungle．He walked around，showing off his power and pride．
Each day Lion took a long lazy sleep under the shade of his favorite tree．He always dreamed of weaker animals bowing before him．
One day Mouse ran through the jungle and tripped over Lion's huge paws（爪子）．Lion woke up with a start．"How dare you wake me up!"he shouted angrily．Lion grabbed Mouse with one paw．"On the second thought，I'm in the mood for the snack，and you'll make a delicious meal．"he said．
Mouse cried out，"King Lion，please spare （饶恕） me!If you let me live，I'll always remember your kindness．And，some day，I might be able to help you．"
"How could such a powerless little mouse ever help me？"That thought made Lion laugh so much that he decided to let Mouse go．A week later，Lion was walking through the jungle on the way to his favorite tree when he stepped onto a hunter's net．The net scooped him up．No matter how he twisted and turned，he couldn't escape．
When Mouse heard Lion's frightened shouts，he raced to help．Mouse quickly chewed （咬） through the ropes to make a hole in the net．Soon，Lion moved out and was free．Lion looked down at the little mouse．"Thank you for saving my life，"said Lion，smiling his widest smile．"I was mistaken．You are not a powerless little mouse．You are a great friend！"
（1）What did Lion do each day？
A．He stepped onto a hunter's net．
B．He bowed before weaker animals．
C．He showed kindness to animals in the jungle．
D．He had a good sleep under his favorite tree．
（2）How did Mouse wake up Lion？
A．He made a hole in the net．
B．He shouted at Lion angrily．
C．He tripped over Lion's paws．
D．He prepared a delicious meal for Lion．
（3）Why did Lion let Mouse go？
A．Because he was trapped in the net．
B．Because he took Mouse as his good friend．
C．Because he believed Mouse could save him．
D．Because he doubted if Mouse could be of any help．
（4）What do you think of Mouse？
A．Clever and honest．
B．Silly and lazy．
C．Humorous and stubborn．
D．Proud and selfish．
（5）What can we learn from the passage？
A．Pride makes you lose what you have．
B．Don't put all your eggs in one basket．
C．Even the small can show great strength．
D．When the cat's away，the mice will play．
13．Animals have the ability to make people understand them，especially（尤其） when they are in serious danger and hope to get help from man.And they often go together to help one another.
One day，I visited my friend Jack on a sheep farm in North America.Suddenly one sheep came to cry in front of us.She made the most painful（痛苦的） cries.Jack said ，"Something must be wrong.Come on，Mike.Let's follow her."
Together we followed the sheep back to where she was feeding on the farm.She rushed forward and kept on looking back to see if we were coming.She finally took us to an old well （井） ，and we heard the sad voice of her young baby that had fallen into the well.As the well had no water and was only six feet deep，we took a ladder（梯子） and climbed down.After a few minutes，the baby sheep was saved.The mother sheep looked happy with the successful （成功的） result of the accident. She came to tell us her trouble and got help.How amazing!

（1）The writer went to the sheep farm to .
A.buy sheep
B.visit his friend
C.feed sheep
D.help his friend
（2）The mother sheep came to Mike and Jack because .
A.she needed their help
B.she had no food
C.she had no water
D.there was a hunter
（3）When Mike and Jack went to the well，they found a in it.
A.man
B.ladder
C.sheep
D.wolf
（4）What does the underlined word "accident" mean in Chinese？
A.机会.
B.演出.
C.玩笑.
D.事故.
（5）Which of the following is NOT true according to the passage？
A.There was no water in the well.
B.At last the baby sheep lost its life.
C.The story happened in North America.
D.Animals can make people understand them.
五．填空题（共1小题）
14．Animals are man's friends，but many people don't treat them as friends．People （1）k animals for their fur，for food and for fun．People destroy（摧毁）（2）f to make more space for buildings and roads．This makes many animals （3）l their food and homes．Every day，many thousands of animals lose their lives （4）b of people．
Many hundreds of kinds of animals are in （5）d ．They may disappear（消失） one day if people do nothing to （6）s them．And once they disappear，they will never （7）r any more!
Every animal has its place in nature．People （8）s learn to share the world with them．（9）L ，many people are doing something to make the world a better place for both man and animals．Many countries pass laws，too．（10）I more people start to care about animals，animals will live a happier life．

（进阶篇）2021-2022学年上学期初中英语牛津译林新版八年级同步分层作业 Unit 5
参考答案与试题解析
一．词汇应用（共5小题）
1．Blood is much thicker （thick）than water.
【分析】血浓于水。
【解答】根据than"比"可知，两者比较，用thick的比较级thicker"更浓的"。
故答案为：thicker。
【点评】单词填空类型题要充分理解句意，再根据单词提示完成试题，注意时态、单复数、词性等变化。
2．Lucy， don't be （not be） shy!Believe in yourself.
【分析】露西，别害羞！相信自己。
【解答】表示命令或请求，是祈使句，否定形式用don't，后跟be动词原形be。
故答案为：don't be。
【点评】单词填空类型题要充分理解句意，再根据单词提示完成试题，注意时态、单复数、词性等变化。
3．We won't go climbing if Lucy isn't （not be） free next week.
【分析】如果露西下周没有空，我们就不去爬山了。
【解答】if引导的条件状语从句，主句一般将来时态，从句一般现在时态。从句主语Lucy单数，用be动词单数is。否定形式在is后加not，缩写为isn't。
故答案为：isn't。
【点评】单词填空类型题要充分理解句意，再根据单词提示完成试题，注意时态、单复数、词性等变化。
4．This kind of shoes sells （sell） well in this shop.
【分析】这种鞋在这家商店很畅销。
【解答】sell出售，动词，与well连用时，主动表示被动。主语中心词kind单数，一般现在时态，谓语动词用第三人称单数sells。
故答案为：sells。
【点评】单词填空类型题要充分理解句意，再根据单词提示完成试题，注意时态、单复数、词性等变化。
5．We should try our best to stop （stop） people from cutting （cut） down forests.
【分析】我们应该尽力阻止人们砍伐森林。
【解答】try one's best to do sth"尽力做某事"固定搭配，to后跟动词原形stop。stop sb from doing sth"阻止某人做某事"固定搭配，填cut的动名词cutting。
故答案为：sto stop；cutting。
【点评】单词填空类型题要充分理解句意，再根据单词提示完成试题，注意时态、单复数、词性等变化。
二．句型转换（共5小题）
6．He didn't go to school because he was ill．（同义句）
He didn't go to school because of his illness．
【分析】他没去上学，因为他病了．
他因病而没去上学．
【解答】考查句型转换．根据He didn't go to school because he was ill．可知这里应说他因病而没去上学．because 表示"由于，因为"，是连词，后接从句．because of 是介词，后接名词、代词．
故答案为because of．
【点评】分析句子结构以及意思，再结合具体要求对句子做出相应转换，意思不变．
7．The magazine beside the TV is about how to make cakes．（对画线部分提问）
Which magazine is about how to make cakes？
【分析】在电视旁边的那本杂志是关于如何做蛋糕的；
【解答】该题考查学生对特殊疑问句句型的掌握；句子中划横线的部分是介词短语作定语，所以对其提问用which，故答案为Which magazine．
【点评】明确划线部分在句中的意义以及语法功能，结合语境作出正确解答．
8．A male wolf always protects its baby.（改为复数句）
Male wolves always protect their babies .
【分析】公狼总是保护它的幼崽。
公狼们总是保护它们的幼崽。
【解答】原句是单数句，改为复数句，主语a male wolf改为名词复数，去掉不定冠词a，wolf名词复数为wolves，谓语动词protects是动词protect第三人称单数形式，复数句中应该改为protect，宾语its baby应该改为their babies。
故答案为：wolves；protect their babies.
【点评】考查改为复数句。首先理解句子的理解，找出句子的主要成分，主语单数改为复数形式，谓语动词采用相应的变化。宾语单数改为复数形式。注意谓语一致即可。
9．We must take action.We want to keep the water clean.（合并为一句）
We must take action to keep the water clean.
【分析】我们必须采取行动。我们想保持水干净。
我们必须采取行动保持水干净。
【解答】原句中take action采取行动。want to keep the water clean想保持水干净，可以转换成take action to do sth.采取行动做某事，后接动词不定式。
故填to keep.
【点评】同义句转换要注意需要转换部分的含义以及其同义词或者词组，还有词语的适当形式以及句式等。
10．If we don't be quick，we cannot catch the early bus. （同义句转换）
Be quick，and we will be able to catch the early bus.
【分析】如果我们不快点，就赶不上早班车。
快点，我们就能赶上早班车了。
【解答】原句if引导条件状语从句，可以转换：祈使句+and you will...."快点，我们就能赶上早班车了。"quick快的，形容词，祈使句要用be动词，表示能够can可以转换成be able to。
故填Be，be able to.
【点评】考查同义句转换。首先理解句子的意思，其次比较两个句子的共同之处，特别注意填空部分，最后采用同义词组及相关语法知识答题。
三．完形填空（共1小题）
11．Birds can see colours，just as people do．Birds need to see colours when they fly because they need to find places to land（着陆）．Colours help them know（1） B the place is and what it is like so that they can catch flying things in the air or land on something they think safe．
Birds can"tell"the differences between colours．But for some（2） A animals，such as wolves，the world looks like a black and white photo．Wolves look for food mainly by（3） B ．
They can hear（4） D when the animals they hunt move．But other animals seem to know this．For example，a rabbit will stop moving when it finds there is something（5） A ．Then the wolves（6） C not find it at all．However，birds are better than wolves in these ways．They can see dead insects from far away．
Some birds' eyesight is（7） D than people's．They can see small insects（8） A they fly in the sky．Because they are able to（9） B colours，they can find food easily and（10） B if（是否） there are other animals that are dangerous to them．
1．A．how soon
B．how far
C．how long
D．how fast
2．A．other
B．another
C．others
D．the other
3．A．shouting
B．listening
C．eating
D．moving
4．A．slow
B．slowly
C．clear
D．clearly
5．A．dangerous
B．safe
C．slow
D．fast
6．A．should
B．must
C．may
D．need
7．A．bigger
B．smaller
C．worse
D．better
8．A．when
B．till
C．where
D．how
9．A．paint
B．see
C．read
D．watch
10．A．find
B．find out
C．look
D．look for
【分析】文章大意：短文主要讲述的是颜色对于鸟儿来说的重要性．
【解答】1﹣5 BABDA 6﹣10 CDABB
1．B考查短语，A．how soon多久以后 B．how far多远 C．how long多长 D．how fast多快，根据so that they can catch flying things in the air or land on something they think safe．这样他们就能在空中捕捉飞行的东西或者在他们认为安全的地方着陆，可知鸟儿要抓住飞行的东西，所以要知道目标的距离有多远，故选B．
2．A考查形容词，A．other其他的，单数，泛指 B．another再一；另一 C．others其他的，复数，泛指 D．the other其他的，特指，根据空格前有some，可至少表示泛指，结合后面有名词animals，所以填other，故选A．
3．B考查动词，A．shouting大喊 B．listening听 C．eating吃 D．moving移动，根据后一句They can hear…，可知说的是听力，故选B．
4．D考查副词，A．slow慢慢的 B．slowly慢慢地 C．clear清晰的 D．clearly清晰地，根据They can hear…when the animals they hunt move，结合选项，推出句意：当他们捕猎的动物移动时，它们可以清晰的听到，故选D．
5．A考查形容词，A．dangerous危险的 B．safe安全的 C．slow慢慢的 D．fast快的，根据a rabbit will stop moving when it finds there is something…，结合选项，推出句意：兔子发现有危险，就会停止移动，故选A．
6．C考查动词，A．should应当 B．must必须 C．may可能 D．need 需要，根据Then the wolves…not find it at all，结合选项，推出句意：狼就可能找不到它，此处may表示猜测的语气"可能"，故选C．
7．D考查形容词，A．bigger更大 B．smaller更小 C．worse更差 D．better更好，根据后一句They can see small insects，可知它们可以在空中飞行时看到很小的昆虫，推出视力比人的要好，故选D．
8．A考查副词，A．when什么时候 B．till直到 C．where哪里 D．how 如何，根据they fly in the sky，结合选项和语境，可是指"当它们在空中飞行的时候"，故选A．
9．B考查动词，A．paint画画 B．see看到 C．read读 D．watch观看，根据题干Because they are able to…colours，结合文章第一句Birds can see colours，可知前后呼应，故选B．
10．B考查短语，A．find找到 B．find out查明 C．look看 D．look for寻找，根据they can find food easily and…if（是否） there are other animals that are dangerous to them，推出句意：它们能容易的找到食物，并搞清楚是否有其他危险的动物，find只是说发现，而find out是指经过分析推敲得出结果，结合本题，find out符合题意，故选B．
【点评】解答完形填空题需要快速阅读全文，了解文章大意，再带着选项去读，边读边做，注意联系上下文
四．阅读理解（共2小题）
12．More than anything else in the world，Lion liked being king of the jungle．He walked around，showing off his power and pride．
Each day Lion took a long lazy sleep under the shade of his favorite tree．He always dreamed of weaker animals bowing before him．
One day Mouse ran through the jungle and tripped over Lion's huge paws（爪子）．Lion woke up with a start．"How dare you wake me up!"he shouted angrily．Lion grabbed Mouse with one paw．"On the second thought，I'm in the mood for the snack，and you'll make a delicious meal．"he said．
Mouse cried out，"King Lion，please spare （饶恕） me!If you let me live，I'll always remember your kindness．And，some day，I might be able to help you．"
"How could such a powerless little mouse ever help me？"That thought made Lion laugh so much that he decided to let Mouse go．A week later，Lion was walking through the jungle on the way to his favorite tree when he stepped onto a hunter's net．The net scooped him up．No matter how he twisted and turned，he couldn't escape．
When Mouse heard Lion's frightened shouts，he raced to help．Mouse quickly chewed （咬） through the ropes to make a hole in the net．Soon，Lion moved out and was free．Lion looked down at the little mouse．"Thank you for saving my life，"said Lion，smiling his widest smile．"I was mistaken．You are not a powerless little mouse．You are a great friend！"
（1）What did Lion do each day？ D
A．He stepped onto a hunter's net．
B．He bowed before weaker animals．
C．He showed kindness to animals in the jungle．
D．He had a good sleep under his favorite tree．
（2）How did Mouse wake up Lion？ C
A．He made a hole in the net．
B．He shouted at Lion angrily．
C．He tripped over Lion's paws．
D．He prepared a delicious meal for Lion．
（3）Why did Lion let Mouse go？ D
A．Because he was trapped in the net．
B．Because he took Mouse as his good friend．
C．Because he believed Mouse could save him．
D．Because he doubted if Mouse could be of any help．
（4）What do you think of Mouse？ A
A．Clever and honest．
B．Silly and lazy．
C．Humorous and stubborn．
D．Proud and selfish．
（5）What can we learn from the passage？ C
A．Pride makes you lose what you have．
B．Don't put all your eggs in one basket．
C．Even the small can show great strength．
D．When the cat's away，the mice will play．
【分析】文章是一则寓言故事．狮子骄傲自大，总是幻想着其它的小动物对它俯首称臣．一天，狮子威胁说要把吵醒它的老鼠吃掉．老鼠向狮子求饶，并承诺日后报答狮子．当狮子被困在网中时，老鼠遵守了诺言，救了狮子一命．
【解答】1．D．细节理解题．根据第二段"Each day Lion took a long lazy sleep under the shade of his favourite tree．"可知，狮子每天都会在树荫下睡懒觉，故选D．
2．C．细节理解题．根据第三段"One day Mouse ran through the jungle and tripped over Lion's huge paws．"可知，老鼠被狮子的爪子绊了一跤，狮子被吵醒了，故选C．
3．D．推理判断题．根据"How could such a powerless little mouse ever help me？"That thought made Lion laugh so much that he decided to let Mouse go．可知狮子觉得老鼠这么小怎么会帮到他呢，他感到怀疑，于是他决定放了老鼠．故选D．
4．A．推理判断题．被抓住之后，老鼠及时求饶并承诺报答狮子，说明它很机灵；根据最后一段"When Mouse heard Lion's frightened shouts，he raced to help"可知，老鼠前去拯救狮子，说明它很诚实，故选A．
5．C．推理判断题．根据最后一段和"I was mistaken．You are not a powerless little mouse．"可知，弱小的老鼠救出了被困的狮子，说明在紧急关头，不起眼的小事物也能发挥出巨大的力量，故选C．
【点评】本文浅显易懂，各个小题都能在文中找到适当依据．只要认真阅读短文，注意前后联系，就能顺利完成阅读．文章所设试题主要考查细节查找，做题关键是找出原文的根据，认真核查小题和原文的异同．
13．Animals have the ability to make people understand them，especially（尤其） when they are in serious danger and hope to get help from man.And they often go together to help one another.
One day，I visited my friend Jack on a sheep farm in North America.Suddenly one sheep came to cry in front of us.She made the most painful（痛苦的） cries.Jack said ，"Something must be wrong.Come on，Mike.Let's follow her."
Together we followed the sheep back to where she was feeding on the farm.She rushed forward and kept on looking back to see if we were coming.She finally took us to an old well （井） ，and we heard the sad voice of her young baby that had fallen into the well.As the well had no water and was only six feet deep，we took a ladder（梯子） and climbed down.After a few minutes，the baby sheep was saved.The mother sheep looked happy with the successful （成功的） result of the accident. She came to tell us her trouble and got help.How amazing!

（1）The writer went to the sheep farm to B .
A.buy sheep
B.visit his friend
C.feed sheep
D.help his friend
（2）The mother sheep came to Mike and Jack because A .
A.she needed their help
B.she had no food
C.she had no water
D.there was a hunter
（3）When Mike and Jack went to the well，they found a C in it.
A.man
B.ladder
C.sheep
D.wolf
（4）What does the underlined word "accident" mean in Chinese？ D
A.机会.
B.演出.
C.玩笑.
D.事故.
（5）Which of the following is NOT true according to the passage？ B
A.There was no water in the well.
B.At last the baby sheep lost its life.
C.The story happened in North America.
D.Animals can make people understand them.
【分析】本文主要讲述了动物有让人了解它们的能力，特别是当它们处于危险的时候，希望人类能够帮助它们，并且它们经常一起去帮助彼此。
【解答】（1）B.细节理解题。根据One day，I visited my friend Jack on a sheep farm in North America.有一天，我在北美的一个牧羊场拜访了我的朋友杰克。可知，这位作家去牧羊场看望他的朋友。故选B。
（2）A.细节理解题。根据Suddenly one sheep came to cry in front of us.She made the most painful（痛苦的） cries.Jack said ，"Something must be wrong.Come on，Mike.Let's follow her."突然一只羊在我们面前哭了起来。她发出了最痛苦的哭声。杰克说："一定有什么不对劲。来吧，迈克。让我们跟着她。"可知，羊妈妈来找迈克和杰克，因为她需要他们的帮助。故选A。
（3）C.细节理解题。根据and we heard the sad voice of her young baby that had fallen into the well.我们听到了掉进井里的小羊悲伤的声音。结合前文羊妈妈找他们寻求帮助可知，当迈克和杰克走到井边时，他们发现井里有一只羊。故选C。
（4）D.词义猜测题。根据and we heard the sad voice of her young baby that had fallen into the well.我们听到了掉进井里的小羊悲伤的声音。可知，母羊遇到的问题是她的宝宝掉进了井里，这是一场事故。画线词"accident"意为"事故"。故选D。
（5）B.推理判断题。根据the baby sheep was saved.小绵羊得救了。可知，B选项"最后小绵羊失去了它的生命。"表述错误。故选B。
【点评】做题时首先对原文材料迅速浏览，掌握全文的主旨大意。其次，细读题材，各个击破。掌握全文的大意之后，细细阅读材料后的问题，弄清每题要求后，带着问题，再回到原文中去寻找、捕获有关信息。
五．填空题（共1小题）
14．Animals are man's friends，but many people don't treat them as friends．People （1）k ill animals for their fur，for food and for fun．People destroy（摧毁）（2）f orests to make more space for buildings and roads．This makes many animals （3）l ose their food and homes．Every day，many thousands of animals lose their lives （4）b ecause of people．
Many hundreds of kinds of animals are in （5）d anger ．They may disappear（消失） one day if people do nothing to （6）s ave them．And once they disappear，they will never （7）r eturn any more!
Every animal has its place in nature．People （8）s hould learn to share the world with them．（9）L uckily ，many people are doing something to make the world a better place for both man and animals．Many countries pass laws，too．（10）I f more people start to care about animals，animals will live a happier life．
【分析】本文讲述的是动物是人类的朋友，但是由于人类过度索取，和破坏它们的生活环境，而面临消失的危险，倡议大家关爱动物，和谐共处．
【解答】1．kill，本题考查动词．根据文中People…animals for their fur句意：人们获取动物的皮毛．可知要杀死动物，文章开头第一句话为一般现在时，此句也应为一般现在时．主语people为复数，故填：kill．
2．forests，本题考查名词．根据文中People destroy…to make more space for buildings and roads．句意：人们摧毁…为建筑物和道路获得更多的空间．可知破坏的是为动物的家园森林．故填：forests．
3．lose，本题考查动词．根据文中This makes many animals…their food and homes．句意：这使得许多动物…食物和家园．因This 指人们破坏了森林，可知动物失去了家．前面的动词make，后填动词原形，故填：lose．
4．because，本题考查综合理解．根据文中Every day，many thousands of animals lose their lives…of people句意：每一天，成千上万的动物失去生命是由于人造成的．故填：because．
5．danger，本题考查综合理解．根据前文语意人们破坏森林，使动物无家可归，陷入绝境，可知动物的处境很危险．in danger处于危险中．故填：danger．
6．save，本题考查综合理解．根据文中They may disappear one day if people do nothing to…them．句意：总有一天他们会消失（消失）如果人们不做点什么来…结合后文many people are doing something to make the world a better place for both man and animals．可知人们采取行动拯救处于危险境地的动物．此处应填不定式结构：to加动词原形．故填：save．
7．return，本题考查考查综合理解．根据文中And once they disappear，they will never…any more句意：一旦他们消失，他们永远不会再…，可知失去的东西不会再回来，此处为一般将来时．故填：return．
8．should，本题考查情态动词．根据文中Every animal has its place in nature．People…learn to share the world with them．句意：每一种动物在自然中有它们的位置．人们应该学会与他们分享世界．可知此处提出建议，故填should：．
9．Luckily，本题考查综合理解．根据文中many people are doing something to make the world a better place for both man and animals句意：许多人都在为人类和动物创造一个更美好的世界．可知动物得到拯救，值得庆幸．故填副词Luckily．
10．If，本题考查连词．根据文中more people start to care about animals，animals will live a happier life．句意：越来越多的人开始关心动物，动物会过上幸福的生活．如果这种情况发生，动物就会活得更好．可知应为条件状语从句．故填：If．
【点评】解答此类试题时，务必充分理解上下文的语境和逻辑关系，同时考虑单词的适当形式．