高一英语第二模块第四单元单词第一课时教学案——课前预习案——一、用单词或短语的正确形式填空。1. Because of the lower grade every time, his interest in English gradually d______.2. Do you know why dinosaurs ___________(消失)suddenly about 65years ago?3. Recently he bought a f______________(凶猛的)wolf dog.4. It would be a wonderful world if all nations lived __________(和平) with one another. 5. I had a bad feeling that his life was _____________. (在危险中)6. Many people like reading a novel with a happy e_____________.(结局)7. The d______(远处的)sound of music reminded me of a famous singer.8. On seeing a funny scene, she _____________________. (突然大笑起来)9. The passers-by showed great m______ to the beggars in the street on a cold night.10. Don’t worry. It is c__________ that he will attend the party.11. Wearing dark glasses can ________ your eyes _______ (保护)the sun.12. Most ocean c________ 35 parts of salt per thousand parts of water.13. The amount of rain _______(影响) the growth of crops.14. We must _____________(更加注意保护) the wild animals and plants.15. We greatly _____________ (感激) your timely help.16. All of us are always longing _____________(成功) passing the exam this time.17. From the beginning of every year, many new laws will _______.(形成)18. ________________ (根据) the numbers, our company is doing well.——课中探究案(一)——一、检查反馈,导入新课。Check the pronunciation of the new words. 二、目标定位,确定重点。3. 能运用这些词汇解决相关练习题。三、自主探究,教师点拨。【单词学习】1. decrease 反义词:increasen. 减 少 , 减 弱 , 减 轻 There has been a steady decrease in the number of visitors. vt 减少,降低 We have decreased our demand for paper. vi 变少,下降 The number of whales ha...