仁爱英语八年级unit4-topic1整理版及同步练习

仁爱英语八年级Unit4 Topic 1一、 教学目标：学习用英语谈论和描述自然界的动植物，主要学习和掌握形容词比较级的用法。通过教学让学生能养成保护环境，爱护动植物的意识。 二、核心词汇：butterfly frog snake fox sea stream beach seaside lake ocean nature sunshine forest sky rainforest earth share joy rose countryside everywhere noise wild feed fast flowing meter control clear rubber protect write dangerous surface drop cover lay lose wood. 三、重点短语： talk to think about in danger thousands of feed on in nature in fact find out look for lay eggs. 四、日常交际用语： I think animals are more interesting. Plants are more beautiful than animals.We share the world with them. They are now in danger. There are also greener trees clearer rivers and lovelier farm animals. The plants stay greener for longer there. Rainforests cover 6 of the surface of the earth. But it is one of the most dangerous fish in the world. Its so strange. We must save every drop of water. 五、重点句型解析. 1. Im interested in playing sports. I think animals are more interesting.【辨析】interesting 与 interested Interesting是形容词，意思是“令人感兴趣的”，说的是“物”性的，一般在句中做表语（主语为事物）、定语等。如： Playing baseball is very interesting. This is an interesting movie.Interested形容词，常构成be interested in 说的是“人”性的，在句中做表语（主语为人）。如： That book is so interesting that everyone is interested in it. He is interested in playing computer. 【拓展】常见的这类词有： Interesting interested Surprising surprised Amazing amazed Exciting excited Boring bored Disappointing disappointed Moving moved 2: I keep a pet dog. 【用法】keep 动词，饲养。如： The girl likes to keep cats. They keep a lot of sheep.They keep cows on their farm. 3.We share the world with them. 【用法】share动词，共用；共有；分享；分担的意思。如： The brothers shared the same room. Mike shares a bed with his brother. Can you share the happiness with me 4The are now in danger. 【用法】 Be in danger “处于危险中”。如 ： You may be in danger if you travel alone at night.His grandfather was sick and in danger of losing his life. dangerous 是形容词。危险的意思。如： The tiger is a dangerous animal. 5 It looks for food at night along the sea floor. 【知识点辨析】look for find find out. Look for “寻找”，强调寻找的过程。如： He is looking for his pen he lost it yesterday. Find “找到”， 强调找的结果。如： I found the book under the bed. Find out “ 了解”，“打听”， “查出”。表示经过一番努力，调查了解到某些事情。后常接宾语从句。如： Please find out when the ship sails for Shanghai. Please find out what time they are coming. 6 In spring it returns to the fresh water stream to lay eggs. 【用法】return 动词， “返回；回到”的意思。如： The young man returned to China from America in 2004. 7 So the butterfly is losing its home. 【用法】 Lose “ 丢失；”，过去式为lost， 意思为 “丢失的”如： The little girl lost her way in that big city. He lost a book that day. 8 What are you thinking about 【知识点辨析】think about think over think of 1 think about 意思为“考虑思考”，与 think of 同义。如： People without a job try not to think of/ about the future. What do you think of/ about your family 2 think of作“想起，想到，认为”时，与think about有不同。如： She often thinks of her friend Anna. 3 think over 意为“仔细考虑、思考”，over为副词，代词应放在其前。 如： Ive thought it over for a long time. Let me think over this difficult problem. 。9: In this area it is often hot and rainy with beautiful beaches and sunshine. 【用法】 Area 区域，作名词用。 如：This disease spreads quickly in this area. 10: The plants stay green longer there. 【用法】 Stay在这里表示继续处于某种状态，后接形容词等表语。 如： The shop stays open till 12 oclock. You cant expect to stay young. He wanted to stay ahead of the others. 11: In this area there is very little rain. Fewer plants and animals can live there. 【知识点辨析】few a few a little little 1） few与可数名词复数连用，表示否定。意思“很少，几乎没有”。如： He has few friends here. He is a shy boy he often has few words.2）little与不可数名词连用，表示否定。意思“很少，几乎没有”。如： There is little water in the glass. I have little money in my pocket.3） a few表示肯定，“一点儿”的意思。与some的意思比较接近。修饰可数名词。如： You dont need to go shopping. There are a few eggs in the fridge. 4） a little 表示肯定，“一点儿”的意思。与some的意思比较接近。修饰不可数名词。如： There is a little milk in the bottle please pass it to me. 12: In summer rocks streams and forests are even more beautiful with blue skies clear lakes and fast-flowing rivers. 【用法】 With介词，表示行为方式的用法： 1） with +名词（代词）+介词短语。如： The guard stood there with a gun in his hand. 2） with +名词+ v-ing。如： With the boy leading they started towards the village. Will you standing here we cant work. 3） with +名词（代词）+过去分词。如： He stood there with his hands tied. 4）with +名词（代词）+adjadv. 。如： He often sleeps with the windows open. 13: Rainforests cover 6 of the surface of the earth. 【用法】 Cover 动词，“覆盖”。如： Water covers most parts of earth. 14: Thousands and thousands of animals live in rainforests. 【知识拓展】 Hundred thousand 百千前有确切的数字，则其后不+s，但是如果要表示不确切的量时，其后要+s如： There are at least six hundred fans at the concert. The hall can hold one thousand people. In spring thousands of birds come back here. 。15: They cant live at all without water. 【用法】 Without 介词，“没有”的意思，反义词是with.如： He is a man without friends. Jane went to school without breakfast yesterday. 16: But its one of the most dangerous fish in the world. 【用法】 Dangerous 形容词，它的名词形式为danger 因为dangerous是一个多音节的单词，所以最高级在其前加most. 类似的单词还有如： Most beautiful most carefully most expensive 17: Its so strange. 【用法】 这是一个感叹句。形式上是陈述句形式，但带有强烈的感情。如： He is such a clever boy. They finish it so quickly.六、语法点击形容词比较级1. 当我们需要对事物作出比较时，需要用到比较级。比较级的句子结构通常是：主语 + 动词be + 形容词比较级 + than（比）+ 宾语 如：Im taller and heavier than you. An elephant is bigger than a tiger. 2. 形容词的比较级是在形容词的基础上变化而来的，它的变化规则是： 一般的直接在词尾加er ，如 tall - taller , strong - stronger , 以e结尾的，直接加r ，如 fine finer , 以辅音字母加y结尾的，先改y为i再加er，如funny - funnier 双写最后的字母再加er，如big bigger, thin thinner , hot hotter除此之外，还有几个特殊的单词，它的比较级和最高级都是不规则的，如：many / much（原形） more（比较级） most（最高级） little / few（原形） less （比较级） least（最高级） good（原形） better（比较级） best（最高级）bad （原形） worse（比较级） worst（最高级） far （原形） further furthest附加：形容词的最高级变化类似于比较级，只是把词尾的er改成est，如：tall （原形）- taller （比较级）- tallest （最高级）long（原形）- longer（比较级）- longest（最高级）big （原形）- bigger（比较级）- biggest（最高级）注意 比较的两者应该是互相对应的可比较的东西。典型错误：My hair is longer than you.（我的头发比你更长。）比较的两者是我的头发、你（整个人），那么比较的对象就没有可比性。应该改为：My hair is longer than yours. 或My hair is longer than your hair.附：如果比较的两者是一样的时候，我们会用 asas这个词组，它的用法是：主语+be+as+形容词原形+as+宾语，意思是什么和什么一样。如：Im as tall as you. My feet are as big as yours. 比较级专项练习一、从方框中选出合适的单词完成句子heavy tall long much many big (1) How is the Yellow River?(2) How is Mr Green? Hes 175cm.(3) How are your feet? I wear size 18.(4) How is the white T-shirt? Its 100 yuan.(5) How apples are there in the bag? There are 5.(6) How is the fish? Its 2kg.二、根据句意写出所缺的单词(1) Im 12 years old. Youre 14. Im than you.(2) A rabbits tail is than a monkeys tail.(3) An elephant is than a pig.(4) A lake is than a sea.(5) A basketball is than a football.七、同步练习.单项选择。（10分）( ) 1. What are you doing? Im life in the countryside. A. think overB. thinking overC. think aboutD. thinking about( ) 2. Water is very important all living things. We must _ every drop of water. A. for; leaveB. for; keepC. to; saveD. to; show( ) 3. There were _ animals in the forest many years ago. A. thousand ofB. thousands of C. three thousand ofD. three thousands of( ) 4. Which is of the two boys? A. the tallestB. the tallerC. tallerD. tall ( ) 5. Yaoming is one of in the world. A. best playersB. the best player C. best playerD. the best players( ) 6. Our rooms are bigger than . A. yoursB. themC. theirD. yours( ) 7. Our teacher told us that these exercises were _. Really? A. far more easyB. much easier C. even more easyD. so easier( ) 8. He is the tallest _ the three. A. inB. ofC. atD. for( ) 9. Insects _ plants. A. feed inB. food onC. feed onD. feed of( ) 10. The man in the red car _ his father. Yes. I think so.A. can beB. mustC. must beD. can not.情景交际。（5分）A: Summer holiday is coming. 11 ?B: Yes, Im going to my hometown. A: 12 ?B: For about a month. 13 ?A: I want to travel to Hainan Island. Its a beautiful place of interest.B: 14 . But I have to visit my grandparents in my hometown.A: It doesnt matter. If you stay in your hometown for fewer days, youll have enough time to go traveling.B: 15 . Then I will go to my hometown as soon as the holiday begins.A: OK! I will wait for you until you come back.B: Thats a deal! Thank you.11. 12. 13. 14. 15. .完形填空。（10分） We know that trees are useful in our everyday life. They 16 us many things, such as wood, oxygen, rubber, medicines and many other things. They can 17 tell us a lot about our climate. The following are the reasons. If you 18 a tree, you can see that it has many rings. Most trees grow one new ring 19 year. Because of the reason, we know 20 a tree is. A tree over a hundred years old means that it has more than a hundred 21 . When the climate is dry or very cold, the trees do not grow very much and their rings are usually 22 . When it is wet and warm, the rings are much thicker. If the rings are suddenly very thin or suddenly very thick, this means that the 23 changed suddenly. If we look at the rings on this tree, we can learn about the 24 for a hundred years. We can see 25 our climate is changing today.( ) 16. A. tellB. askC. giveD. get( ) 17. A. notB. tooC. toD. also( ) 18. A. cut acrossB. climb upC. walk pastD. look at( ) 19. A. everyB. manyC. the firstD. from( ) 20. A. how bigB. how longC. how oldD. how much( ) 21. A. treesB. leavesC. peopleD. rings( ) 22. A. bigB. thickC. smallD. thin( ) 23. A. climateB. treesC. ringsD. animals( ) 24. A. peopleB. thingsC. climateD. life( ) 25. A. howB. whyC. whenD. while.阅读理解。（30分）(A)In 1620, about half the U.S.A. was covered by forests. Today the forests have almost gone. A lot of good land has gone with them, leaving only sand. China doesnt want to copy the U.S.A.s example. Were planting more and more trees. Weve built the “Great Green Wall” of trees across northern part of our country. The Great Green Wall is 7,000 kilometers long, and between 400 and 1,700 kilometers wide. It will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. More “Great Green Walls” are needed. Trees must be grown all over the world. Great Green Walls will make the world better.( ) 26. In 1620, about _ the USA was covered by forests. A. a thirdB. halfC. two thirdsD. a fourth( ) 27. A lot of good land has gone with _. A. sandB. waterC. windD. forests( ) 28. The Great Green Wall in China is _ long. A. 7,000 kilometersB. 1,700 kilometers C. 7,000 metersD. 400 kilometers( ) 29. Trees must be grown in _. A. ChinaB. the USA C. some countriesD. every part of the world( ) 30. _ will make the world better. A. The Great WallB. Tall buildings C. Great Green WallsD. Flowers and grass (B)Rose is an American school girl. She is now in Beijing with her parents.Its Sunday morning. Rose gets up early in the morning. After breakfast her parents take her to the zoo. They go to see the pandas and other animals. The pandas live only in China. There are not any pandas in America. So they like the pandas best. Outside the zoo gate there is a picture. Its a picture of a panda with “Welcome”. In the zoo, Rose sees not only pandas but also many other animals.A panda is round and fat. It looks like a ball. It always moves slowly like a ball rolling (滚动). There are also elephants. The elephant is the biggest animal on land. There are many monkeys on the hill. Some of them are sitting in the trees. Some are picking nuts. And the others are running or climbing up the trees. Rose and her parents have a good time in the zoo.( ) 31. Rose comes from _.A. ChinaB. BeijingC. AmericaD. a school( ) 32. They like pandas best because _.A. the pandas live only in ChinaB. there is a picture of a panda outside the zoo gateC. a panda is round and fatD. a panda looks like a ball( ) 33. Which is the biggest animal on land?A. The panda.B. The elephant.C. The tiger.D.The monkey.( ) 34. Many monkeys are _.A. sitting in the treesB. picking nutsC. running or climbing up the treeD. A, B and C( ) 35. Rose and her parents are _ that day.A. very busyB. very freeC. very happyD. not happy(C)Trees are useful to man in three important ways.The first important way is that they provide(提供) man with food, wood and the other products. Trees provide not only man with food, but also many animals with food. Without trees many animals could not live on the earth. Its not easy for man to live on the earth, either.The second important way is that trees give us shade(阴凉). On a hot summer day, people are eager(渴望) to have a rest under the tree after they have a long walk. You can imagine how important the shade of a tree is to man and animals.The third important way is that trees help to prevent droughts and floods(防止干旱和洪水). However, in many parts of the world, man hasnt realized the third way. They were cutting trees down in large numbers. In the end they find that they have lost the best friends they had.根据短文内容，回答下列问题。36. How many important ways are trees useful to man?_37. Trees only provide man with food, dont they?_38. On a hot summer day, what do trees give us?_39. What does the underlined word “they” means？_40. Whats the best title of the passage?_.词汇。（10分）(A) 用所给词的适当形式填空。41. Tigers are (danger) than elephants.42. Which do you like (well), Chinese, English or Japanese?43. Is Huanghe one of the longest (river) in the world?44. There are many (sheep) on the farm.45. Humans need water (drink).(B) 根据汉语提示，完成句子。46. (事实上), water covers most of the earth.47. Girl students (占了) only 40% of the students.48. Rabbits (以为食) grass.49. We should save (每滴水).50. Tom a bed (与分享) Tim.综合填空。（5分）根据首字母提示补全单词，完成短文。The Dead Sea is not a sea. It is a big l 51 in the Jordan valley. It is near the city of Jericho. The river Jordan runs into the Dead Sea. It c 52 from the north. The lake is 400 meters below sea level. The sun is hot there a 53 the water is salty. Fish cannot live in the salty water and plants cannot grow near it. People cannot swim w 54 in the Dead Sea, but they can float on the water. The water is very blue and the air is c 55 . In the winter people come to the lake. They sit in the sunshine or bath in the warm water.51._ 52._ 53._ 54._ 55._.书面表达。（15分）用80个左右的单词写一篇保护野生(wild)动植物的短文。内容应包含：1. 野生动植物的现状；2. 造成许多野生动植物濒临灭绝(die out)的原因。3. 至少提出三条保护野生动植物的措施。_8