初中英语牛津版 (深圳&广州)七年级下册（2012秋审查）Unit 5 Water图片ppt课件

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1. Language knwledge1) Learn the crrect prnunciatin f /str/ /spl/ /spr/ /skr/.2) Identify the wrds that cntain these fur cnsnants.3) Describe an experiment with a flw chart.2. Language skillsImprving their speaking and writing skills.
Fill in the blanks accrding t the article f Page 70:
Venice is a famus city in ______. It is called the “Flating City” and the “City f ______”. Because its whle city is ___ the water. In Venice, there are ver 117 small ______ and ver 400 _______. S peple usually take a traditinal _____ —— gndla t see the city.
Speaking: Talk time.
Presentatin
Listen carefully and circle the wrd yu hear frm each pair.
Read these sentences. Pay attentin t the letters in bld.1　The strawberry plant in the street lks strange, but the strawberries are nice and sweet.2　Heavy rain splattered n the rd and splashed against the windws f the splendid huse.3　Sprinkle the seeds arund. Spread them ut. In spring, yu will have green spruts.4　The screenwriter screamed when she saw the script.
/s/后面爆破音的读法当清辅音/p/ /t/ /k/在/s/后面时，无论所属音节重读与否，都不送气，发音类似于它们各自相对应的浊辅音，但又不完全相同，区别在于：它们发音时声带不振动。如:schl /skuːl/ n. 学校student /'stjuːd(ə)nt/ n. 学生spring /sprɪŋ/ n. 春天
/s/组合中，/s/轻而短促，第二个音位长而响，声音有弱到强，有轻到响，由短到长。特别注意:/s/位于爆破音中的清辅音之前时/p/，/t/，/k/要从原来的送气变为不送气或少送气。
/str/ 辅音连缀实例单词string /strɪŋ/ n. 线，弦strng /strɒŋ/ adj. 坚强的street /striːt/ n. 街道straight /streɪt/ adj. 直的stride /straɪd/ n. 大步
/spl/ 辅音连缀实例单词spleen /spliːn/ n. 脾脏splay /spleɪ/ vt. 张开splash /splæʃ/ n. 飞溅的水splendid /'splendɪd/ adj. 辉煌的splint /splɪnt/ n. 夹板
/spr/ 辅音连缀实例单词spring /sprɪŋ/ n. 春天spray /spreɪ/ n. 喷雾sprut /spraʊt/ vi. 发芽spruce /spruːs/ adj. 整洁的spread /spred/ vt. 传播sprinkle /'sprɪŋk(ə)l/ n. 撒
/skr/ 辅音连缀实例单词scream /skriːm/ vi. 尖叫screw /skruː/ n. 螺旋script /skrɪpt/ n. 脚本scrll /skrəʊl/ n. 卷轴scratch /skrætʃ/ n. 擦伤
Hw des water becme rain? In grups, talk abut this prcess.
First, …Then, …Next, …Finally, …
Heats the waterBecmes vapurFrms cludsCls and frms small drps f waterRain falls
D yu knw where rain cme frm? It cme frm the water. Hw des water becme rain? D yu knw the prcess? First, the sun heats the water in the sea. Then, the water becmes vapur. Mre and mre vapur frms in the air, the vapur frms cluds. Next, the clud cls and frms small drps f water. Finally, the rain falls.
Read the fllwing wrds.
What experiment is the by ding? In grups, describe the pictures.
Writing: An experiment
First, add sme salt t a glass f water.
Then, stir the water.And the salt disappears, after that, becmes part f the water.
Next, heat the water.In this prcess, a white clud appear. It is made up f the water.Yu can cntinue t heat the water.
Finally, the water starts t day up.The salt turns int crystals.
Write a shrt paragraph abut this experiment.
First, add sme salt t a glass f water. ___________________________________________________________________________________________________________________________________________________________________________________________________Finally, ___________________________. The salt turns int crystals.
First, add sme salt t a glass f water. Then, stir the water. And the salt disappears, after that, becmes part f the water. Next, heat the water. In this prcess, a white clud appear. It is made up f the water. Yu can cntinue t heat the water. Finally, the water starts t day up. The salt turns int crystals.
Think and say: Hw can we d t save water?
A fire in Australia frm 2019 t 2020, causing a large number f frests t be burned. Water shrtage (水资源短缺), the spread f wildfires can nly sit n the sidelines.
A large number f camels (骆驼) are lking fr water t drink, but there are few water resurces in Australia. The gvernment has rdered t kill these camels.
Many kalas (考拉) are dying because they dn't have enugh water t drink.
After learn abut the stry f The Australian Wildfire, We must be aware f (意识) the imprtance f water. S, hw can we d in ur daily life t save water? Discuss with yur classmates!
（　）1　A. spyB. spitC. sparkD. sphere（　）2　A. schlB. skiC. skateD. squeeze（　）3　A. sprtB. springC. sprayD. sprut（　）4　A. skyB. planeC. squareD. scld（　）5　A. spleenB. splendidC. sprinkleD. splash
找出下列每组划线部分发音不同的选项。
Key pints: /str/ /spl/ /spr/ /skr/的正确发音。辨识含有这四个辅音连缀的单词。利用流程图描述一个实验。