1、Section B 2 (3aSelf check) Step 1 SummaryImportant phrases:feel free, as far as I know, in the face of, even though, at birth, up to, run over, walk into, fall over, or soKey sentences:Whats the highest mountain in the world?Qomolangma.How long is Qomolangma?Its 8,844.43 meters high. Its higher than
2、 any other mountain.Which is the deepest salt lake in the world?The Caspian Sea is the deepest of all the salt lake.Did you know that China is one of the oldest countries in the world?Yes, I did. Its much older than the US.Important structures:1. cm taller/shorter2. much /even/a little/less +比较级3. t
3、imes more than .4.Talk about how to protect pandas.Step 2 Lead in对于鲸鱼你知道多少？鲸的体型是世界上存在的动物中最大的，鲸是终生生活在水中的哺乳动物，对水的依赖程度很大，以致它们一旦离开了水便无法生活，鲸形状像鱼，鼻孔在头的上部，用肺呼吸。体长可达三十米，是现在世界上最大的动物。鲸为适应水中生活，减少阻力，它们的后肢消失，前肢变成划水的浆板。身体成为流线型，酷似鱼。因而它们的潜水能力很强，小型齿鲸可潜至100-300米的水深处，停留4-5分钟，长须鲸可在水下300-500米处待上1小时，最大的齿鲸-抹香鲸能潜至千米以下，并在水中
4、持续2小时之久。Step 3 Writing3a Read the following words and phrases about whales. Put them in the correct place in the chart.1. Humans catch whales for meat, fat and oil2. Eat small fish and other sea life3. Jump high out of the water4. Rules on whale protection5. Huge6. Water pollution7. Live in the sea8
5、. Some kinds have teeth9. Learn more about whales10. Stop putting rubbish into the sea11. Sing songs12. Whale parts sold to make things likes candles and soapWhat do they look like? 5 8Where do they live? 7What do they eat? 2What can they do? 3 11Why do some of them have to be protected? 1 6 12How c
6、an we protect them?4 9 103b Write a paragraph about whales and why they need to be protected. Use the information in 3a. Then make a poster.Whales are They live in They eat They canOne interesting fact is Another interesting fact isSome kinds of whales are in danger becauseWe should protect whales f
7、romI think people should/shouldntStep 4 Self-checkRead these words then find the rules.clever-cleverer-cleverestnice-nicer-nicesteasy-easier-easiestfat-fatter-fattestthin-thinner-thinnestbeautiful-more beautiful-the most beautifulcareful-more careful-the most carefulgood/well-better-bestbad-worse-wo
8、rstmany/much-more-most1. Complete the chart.AdjectivesComparativesSuperlativeshighhigherhighestdangerousmore dangerousthe most dangerouslonglongerlongestpopularmore popularthe most popular2. Match verbs and objects. Then add one more object to each list.VerbsObjects1. reacha. my life, my money, my h
9、ealth2. achieveb. the top of a mountain, the library,3. riskc. my dream, success,Keys: 1-b, 2-c, 3-a3. Circle the correct word and /or fill in the blank with the correct form of the word in brackets for each sentence.1) An elephant weighs (few/many) times more than a dog.2) An adult panda can eat (m
10、uch/a little) more than a cat.3) Canada is a (little/lot) less _ (crowded) than China.4) A tiger is (much/a little) _ (strong) than a man.Keys: 1) many 2) much 3) lot more crowed 4) much strongerStep 5 Do some exercise.一、根据句意，用适当的词填空。1. The biggest _ in the world is the Sahara.2. The river is too _
11、to swim in.3. China is one of _ civilizations (文明) in the world.4. The _ of the fastest animal is 120 kilometers per hour.5. What _ do you need for your coat? I want a large one.二、用括号内单词的适当形式填空。1. Jim is very _. Li Lei is _ than Jim. (hungry)2. Kates mooncakes are _ of all. (nice)3. Your box is _ th
12、an mine. But his is _ of the three. (heavy)4. Unit 2 is quite _. Unit 3 is _ than Unit 2. Its _ in Module (hard)5. This TV play is _ than that one. (good)6. My mother is very _. She is _ in my family. (busy)7. Lingling gets to school _ than the others. (early)8. She speaks English _ in our class. (w
13、ell)9. Lucy jumped quite _. (far)10. I think English is as _ as Chinese. (important)11. This picture is _ of the four. (beautiful)12. Lucy did _ than Lily. (bad)三、单项选择1. My brother is _ more outgoing than me. A. many B. little C. much2. October 12th was one of _ days in 2005. Shenzhou-VI was launche
14、d（发 射）successfully. A. exciting B. more exciting C. the most exciting3. Which city is _, Beijing, Shanghai or Fuzhou? A. beautiful B. the most beautiful C. more beautiful4. _ children there are in a family, _ their life will be. A. The less, the better B. Fewer, richer C . The fewer, the better5. Mo
15、bile phones are very popular now and they are _ than before. A. cheap B. cheaper C. the cheapest6. In our city, its _ in July, but its even _ in August. A. hotter, hottest B. hot, hot C. hot, hotter7. Jacks handwriting is as _ as Mikes. A.good B. better C. best8. We can do the work better with _ mon
16、ey and _ people. A. little, few B. less, fewer C. fewer, less9. Jim is the tallest student in our class and Tom is the second _ one. A. tall B. taller C. tallestKeys: CCB ABC ABCStep 6 Homework1. Write a paragraph about how to protect endangered animals, use the useful sentences in 3b.2. Remember the words, phrases and sentences in this unit.