Unit 4 Our World单元复习课件(共27张PPT)

(共27张PPT)
Units 4复习课件
2021--2022学年第一学期期末考试英语复习
八年级上册
(A)根据句意及首字母提示补全单词。
1. People can enjoy n_______ in the countryside. The air is fresher and the sky is bluer there.
2. She c_______ the table with a cloth yesterday.
3. Many animals are in danger. We must do something to p_______ them.
4. Thousands of rivers go into the s_______ at last.
5. Thousands of old trees were in the f_______ ten years ago, but now there are few.
nature
covered
protect
sea
forests
词汇训练
(A)根据句意及汉语提示填空。
6. These plants float on the _______ (表面) of the water.
7. My grandparents keep a lot of _______ (绵羊) in the countryside.
8. The fox usually _______ (以……为食) meat.
9. The teacher had no _______ (控制) over the children.
10. The rivers in the countryside are much _______ (清澈) than those in the cities.
surface
sheep
feeds on
control
clearer
词汇训练
(B)根据句意及首字母提示补全单词。
1. The boy didn’t go to bed last night, he played the computer games the w_______ night.
2. A_______ and people are like water and fish.
3. After receiving my e-mail, Li Lei s_______ an e-mail back to me yesterday.
4. I passed the l_______ of 4 English test last year.
5. We should call 119 for help at once when a f_______ happens.
whole
Army
sent
level
fire
词汇训练
(B)根据句意及汉语提示填空。
6. No one knows clearly when the next _______ (地震) will happen.
7. I bought a mobile _______ (电话) for the old for my father on his seventieth birthday.
8. Many students can’t see the blackboard clearly because a tall boy sits in the _______ (中间) of the classroom.
9. The first thing we should do is to _______ (保持) calm when an earthquake happens.
10. We should learn something to _______ (保护) ourselves from a fire.
earthquake
phone
middle
stay/keep
protect
词汇训练
(C)根据句意及首字母提示补全单词。
1. I like movies. So I often visit movie w_______ online.
2. We should make a p_______ project to solve the problem well.
3. Our teacher often tells us to c_______ the wrong exercises in our homework.
4. Li Lei’s mother was angry at the r_______ of Li Lei’s exam.
5. I can remember the new English words, but I can’t understand the g_______.
websites
perfect
correct
result
grammar
词汇训练
(C)根据句意及汉语提示填空。。
6. I am not sure if it is _______ (事实).
7. My mother likes shopping _______ (在线).
8. Do you know how an earthquake _______ (形成)
9. People can do many things _______ (通过) the Internet.
puters work by a special _______ (语言).
true
online
comes into being
through/by
language
词汇训练
1. _______________________________________植物比动物更漂亮。
2. _______________________________________
那儿的植物能更长时间保持绿色。
3. _______________________________________雨林对我们很重要。
4. _____________________________________________________________
水对所有植物是必需的。它对所有生物都重要，我们必须节约每一滴水。
5. ________________________________是不是很有趣呀？
6. ___________________________________________
它是世界上最危险的鱼之一。
7.________________________________太奇怪了！
Plants are more beautiful than animals.
The plants stay green longer there.
The rainforests are very important to us.
Water is necessary for all plants. It is the most important thing to all living things, we must save every drop of water.
Isn’t it interesting
It is one of the most dangerous fish in the world.
It is so strange!
句型训练A
1. ________________________________________________
我确信机器人比人能更好地做某些工作。
2.__________________________________________________
昨天我沿着街道走时，看见了一个不明飞行物。
3. _________________________ 它看上去像一个盘子。
4. __________________________________________________
直到现在，甚至科学家也不确定是否有不明飞行物。
5. _________________________________________________
我们不出家门就能购物。
I’m sure robots can do some work better than humans.
I saw a UFO while I was walking down the street yesterday.
It looked like a plate.
Until now, even the scientists are not sure whether there are UFO.
We can shop without going out of our houses.
句型训练B
6. _____________________________________我们可以用网络来找工作。
7._______________________________________
我们不应该在因特网上面花费太多的时间。
8. _______________________________________________________
当你在字典里查一个单词的时候，注意这个单词的第一个字母。
We can use the Internet for finding a job.
We shouldn’t spend too much time on it.
When you look up a word in the dictionary, pay attention to the first letter of the word.
句型训练B
1. ________________________________________
他们当中许多在二十世纪六十年代被拆毁。
2. ________________________________________
人们认为它们没有用。
3. ________________________________________这太遗憾了。
4. ______________________________________________________
我们正在尽全力保护并重建老城墙。
Lots of them were pulled down in the 1960s.
People thought them useless.
It’s really too bad.
We are doing our best to protect and rebuild the old city walls.
句型训练C
5.______________________________________________________
它是现存的古代“七大奇迹”之一。
6. _____________________________________________________
修建它花了10万人二十多年的时间。
7. _______________________________________________________
从那以后，人们就把长城看作是中华民族的象征。
8. _______________________________________________________
每年有许多人参观长城，从中得到极大乐趣。
It is one of the“seven wonders”of the ancient world still standing.
It took 100,000 people over 20 years to build it.
Since then, people regarded the Great Wall as a symbol of the Chinese nation.
Every year many people find great pleasure visiting the wall.
句型训练C
一. 形容词的比较级和最高级的构成
1. 规则变化：
（1）一般在词尾加—er或—est，如：fresh—fresher—freshest
（2）以字母e结尾的形容词，加r或st，如：late—later—latest
（3）以重读闭音节结尾的词，词尾只有一个辅音字母时，应双写这一辅音字母，再加er或est，如：big—bigger—biggest
（4）以辅音字母＋y结尾的双音节词，先改y为i，再加er 或est，如：happy—happier—happiest
（5）部分双音节词和多音节词前面加more或most构成比较级或最高级。如：careful—more careful—most careful；beautiful—more beautiful—most beautiful
语法讲解
2. 不规则变化：
good/well—better—best
little—less—least
many/much—more—most
bad/ill—worse—worst
far—farther/further—farthest/furthest
语法讲解
二. 形容词的比较级和最高级的用法
1. 两者比较用比较级，经常与than搭配，可用much和a little修饰。
I’m happier than you. 我比你更快乐。
Plants are much more beautiful than animals. 植物比动物漂亮的多。
2. 三者或三者以上比较用最高级，一般给出比较范围，如：of（in）＋…。
The boy is the tallest in my class. 这个男孩是我们班最高的。
Lesson Two is the most important of all. 第二课是所有中最重要的。
语法讲解
三.现在进行时与过去进行时的区别
1. 现在进行时表示现在正在发生或正在做的事情，基本结构is/am/are＋现在分词doing，
肯定句：The robots are making a car now. 这些机器人正在生产小汽车。
否定句：We are not studying on the Internet. 我们没有在互联网上学习。
疑问句：Is the teacher looking up the word in the dictionary？
这个老师正在词典中查这个词吗？
特殊疑问句：Ｗho are you talking to？你在和谁谈话？
语法讲解
2. 过去进行时表示过去某一时间，正在发生或正在做的事情。基本结构was（were）＋现在分词doing，如：
肯定句：Ｗhen he came in, I was writing a letter. 当他进来时，我在写一封信。
否定句：They weren’t watching TV while she was reading.
她读书时，他们没在看电视。
疑问句：Was the UFO flying to us at 8 last night
昨晚８点UFO向我们飞来了吗？
特殊疑问句：What were you drinking while we were sleeping
我们睡觉时，你们在喝什么？
语法讲解
四.反意疑问句：由陈述句（或祈使句、感叹句）加一个简短问句构成的疑问句叫反意疑问句。
一般对应规律：前肯后否；前否后肯。即陈述部分为肯定形式，附加问句用否定形式；陈述部分为否定形式，附加问句用肯定形式。
如：There are many pyramids in Egypt, aren’t there
在埃及有许多金字塔，不是吗？
Sally visited the Great Wall last month, didn’t she
萨莉上个月参观了长城，不是吗？
He doesn’t realize the importance of saving water,does he
他没有意识到节约用水的重要性，是吗？
语法讲解
特例点拨：
1. I don’t think you can rebuild the house, can you
我认为你不能重修这座房子，是吗？
（I don’t think…主要在说think后的内容，故按从句变化）。
2. 陈述部分有nobody,nothing,never,no,few（没几个），little（几乎没有），hardly（几乎不）等否定或半否定词时，仍视为否定句。根据反意疑问句对应规律，疑问部分用肯定形式。
如：There is nothing in the room, is there 屋子里什么也没有，是吗？
Maria never surports me, does she 玛丽亚从未支持过我，是吗？
He had few apples, did he 他几乎没有苹果，是吗？
语法讲解
3. 祈使句的反意疑问句：无论肯定或否定，通常在祈使句后加上will you
如：Please close the door, will you 请关门好吗？
Don’t tear down the old walls,will you 不要拆毁古墙，好吗？
但以Let’s开头的祈使句用shall we
如：let’s make a survey, shall we 我们做个调查，好吗？
语法讲解
Receiver Li Zhiyuan@
Copy
Subject How to protect the clean water
Dear Li Zhiyuan， I feel very excited about my visit to Fuzhou and meeting you for the first time! But I’m still not sure about the following questions： 1. Are there any rivers or lakes in your city 2. Is the water dirty or clean Why 3. Did you do anything useful to protect the clean water Please let me know about it. Your friend，Wei Huan
1.北京国际学校八年级学生魏环向福州的网友李志远发了一封电子邮件，询问了一些关于当地环境情况。请根据来信帮他回一封电子邮件。
注意：1. 词数：60词左右；
2. 邮件的开头和结尾已替你写好，不计入总词数。
Dear Wei Huan，
I am very excited to receive your e-mail. I am interested in your questions.
__________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________ Looking forward to meeting you soon.
Yours， Li Zhiyuan
作文训练
Dear Wei Huan,
I am very excited to receive your e-mail. I am interested in your questions.
There are many rivers in my city. Mingjiang River is one of the longest rivers. But the water in the river isn’t as clean as before. This is because people cut down the trees a lot. As we know, trees can keep the water much cleaner. On March 12th, we often plant some trees on the hills. More and more trees are growing. I think the water is becoming cleaner and cleaner.
Looking forward to meeting you soon.
Yours,Li Zhiyuan
作文训练
2.假如昨天下午全校师生进行了一次地震逃生演练（a practice of escaping from an earthquake）。请展开合理想象，写一篇短文介绍这次演练的情况。不少于60词。
提示词：under the desk, cover the head, run out, one after another, walk on the right down the stairs, get to。
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

作文训练
Yesterday morning, our school gave us a practice of escaping from an earthquake. All the teachers and students took part in the activity.
Before it, our head teacher, Miss Wang, told us the rules for escaping again. It started on time at 8:00 a. m. Miss Wang shouted,“Under your desk!”All the students stayed under the desks with arms covering the heads. Next, she shouted“Group One, go!”… “Group Two, go!”… My classmates ran out of the classroom one after another. When I was walking on the right down the stairs, Lucy in front of me fell down suddenly. I held her up quickly. All of my classmates got to the playground at 8:01a.m.. No one was left.“We only spent one minute.”said Miss Wang happily.
This activity is popular with both parents and students. We learnt a lot from it.
作文训练
3.现在学生在网吧上网（get online）成风，你们班在下周班会上将谈论有关问题。请你根据表格中提示的内容用英语写一篇60词左右的讲话稿，要点必须齐全。
____________________________________________________________________________________________________________________________________________________________
益处 学会使用现代设备——电脑；
学会更多知识(knowledge)；
玩游戏，使人更加聪明。
坏处 过于沉迷游戏，对学习有害；
网上交友，通信频繁，学习成绩下降。
建议 在学校学习时不上网；
寒暑假可以上网。
作文训练
Many students like getting online very much. They can learn how to use the modern machine — computers. They can learn much more knowledge from the Internet. It can make them clever by playing different kinds of games.
But some students spend too much time playing games. Some even make friends online. It takes them too much time to write too many letters to each other, so they do worse in their lessons.
I think they mustn’t get online when they’re studying at school. They can do it in summer or winter holidays.
作文训练
再见