仁爱英语八上Unit4Topic1学案

仁爱英语八年级学案Unit 4 Topic 1一、知识目标【重点短语】in the countryside 在农村enjoy nature 享受自然must be fun 一定有趣much+形容词比较级: …得多give sb. joy = bring sb. happiness给某人带来快乐play with sth. 玩某物sing to sb. 对某人唱歌as we know 众所周知be important to sb. 对…来说很重要share the world with与…分享世界share sth. with sb.与某人分享某物the earth’s surface 地球表面6%: six percent百分之六thousands of 成千上万many of them他们中许多over 30 meters from the ground离地超过30米help to do sth.帮助做某事control the weather 调控温度protect sth. 保护某物can’t live without wat er 离开水不能生存in fact事实上make up组成be necessary for 对…有必要living things生物save water节约水a drop of water一滴水on earth地球上wild animal 野生动物【语法知识】（一）、基本概念1.形容词的比较级和最高级的构成规则变化：（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.２.不规则变化：good/well—better—bestlittle—less—leastbad/ill—worse—worst many/much—more—mostfar—farther/further—farthest/furthest（二.）形容词的比较级和最高级的用法⑴．比较级Ａ＜Ｂ或Ａ＞Ｂ，经常与than搭配，或给出比较的二个内容。

可用much和a little修饰．例句：①I’m happier than you.我比你更快乐。

②Plants are much more beautiful than animals.植物比动物漂亮的多。

⑵．三者或三者以上比较用最高级，一般给出比较范围．如：of（in）＋…。

例句：①The boy is the tallest in my class.这个男孩是我们班最高的。

②Lesson Two is the most important of all.第二课是所有中最重要的。

二、典型例解( )1.All animals need _______ water.A. littleB. manyC. lot ofD. plenty of分析：D little几乎没有, many许多,修饰可数名词, lot of是错误的用法, 应该写成lots of 大量,许多, plenty of大量的,既可修饰可数名词,又可修饰不可数名词。

故此题选D。

( )2.—You are standing too near to the TV. Can you move a bit _______?—OK, Mom. Is it all right here?A. fasterB. slowerC. fartherD. nearer分析：C 考查易混淆词区别。

根据题意:“你站得离电视太近了,你能移远一点吗?”fast指速度快,slow指速度慢,far指距离远,near指距离近。

a bit可修饰比较级,故选C。

( )3.—Did you have breakfast this morning?—No, I got up late and went to school _______ breakfast.A. for B .in C. without D. after分析：C 考查介词。

根据句意:“—今天早上你吃早饭了吗？—没有。

我起晚了,没吃早饭就去上学了。

”without breakfast意为“没吃早饭”。

( )4.Your classroom is so dirty. Everyone should keep it _______.A. dryB. openC. quietD. clean分析：D考查keep+n. +adj. 的用法。

( )5.There were _______ animals in the forest many years ago.A. thousand ofB. thousands ofC. three thousand ofD. three thousands of分析：B 考查数词。

hundred/thousand等,前面如有具体数字，其后不加-s也不跟of,反之,就得用复数形式，其后跟of。

分析句子，选B。

( )6.—Wow, your school is great!—It is _______ school in the city.A. much more beautifulB. much beautifulC. the most beautifulD. beautiful分析：C 考查形容词最高级。

分析句子,空格后是in the city,故应用最高级,由于beautiful 是多音节，其最高级用the most beautiful,故选C。

( )7.Blue whales are the largest and heaviest animals in the world, but they _______ the smallest sea animals.A. feed inB. live inC. feed onD. fed on分析：C此题意为“蓝鲸是世界上最大、最重的动物,却以海洋中最小的动物为食。

”“以……为食”应用feed on ... ,而且这是一种习惯表达法,不需要使用过去时,故选C。

( )8.—Zhou Fang, can you finish your homework better with _______ time?—I think I can.A. fewB. fewerC. littleD. less分析：D 考查形容词的比较级。

根据句意: “周芳,你能用更少的时间把你的作业做得更好吗?”空格后的time是不可数名词,只能用little来修饰,little的比较级是less,故选D。

( )9.As we know, water is very important _______ us.A. ofB. toC. onD. with分析：B此处是固定搭配,be important to/for sb. 表示“……对某人来说是重要的”。

( )10.Look! There is a rabbit, two _______ and two _______ in the picture.A. cows; sheepsB. mice; tigerC. gooses; snakesD. foxes; wolves分析：D考查可数名词变复数的语法。

三、评价作业Ⅰ.单项选择( ) 1. — What are you doing?—I’m 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 ofC. 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 playerC. best playerD. the best players( ) 6. Our rooms are bigger than .A. yoursB. themC. theirD. your’s( ) 7. — Our teacher told us that these exercises were __________.— Really?A. far more easyB. much easierC. 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 notⅡ.情景交际A: Summer holiday is coming. 11 ?B: Yes, I’m going to my hometown.A: 12 ?B: For about a month. 13 ?A: I want to travel to Haina n Island. It’s a beautiful place of interest.B: 14 . But I have to visit my grandparents in my hometown.A: It doesn’t matter. If you stay in your hometown for fewer days, you’ll 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: That’s a deal! Thank you.11.12.13.14.15.Ⅲ.完形填空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. tell B. ask C. give D. get( ) 17. A. not B. too C. to D. also( ) 18. A. cut across B. climb up C. walk past D. look at( ) 19. A. every B. many C. the first D. from( ) 20. A. how big B. how long C. how old D. how much( ) 21. A. trees B. leaves C. people D. rings( ) 22. A. big B. thick C. small D. thin( ) 23. A. climate B. trees C. rings D. animals( ) 24. A. people B. things C. climate D. life( ) 25. A. how B. why C. when D. whileⅣ.阅读理解(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 doesn’t want to copy the U.S.A.’s example. We’re planting more and more trees. We’ve 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 kilometersC. 7,000 metersD. 400 kilometers( ) 29. Trees must be grown in ______.A. ChinaB. the USAC. some countriesD. every part of the world( ) 30. ______ will make the world better.A. The Great WallB. Tall buildingsC. Great Green WallsD. Flowers and grass(B)Rose is an American school girl. She is now in Beijing with her parents.It’s Sunday mornin g. 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. It’s 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. It’s 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 pa rts of the world, man hasn’t 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。