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2）能运用略读策略，了解文章大意。
3）能利用所给提示（如图片，关键词）描述一件发明
3. 情感目标：
（1）激发学生对历史上伟大发明的热爱。
教学重点：
（1）对整篇文章的理解。
（2）掌握略读，细读，以及通过关键词找答案等阅读技能。
教学难点：
（1）运用阅读策略，找到所需要的阅读信息，完成阅读任务。
Teaching Procedures :
Step 1: Warming up
1 Cartoon talk
What is Hi doing? What is the book about ? Why is Hi so proud of himself?
2 Get students to talk about the 4 historical inventions and some inventions in the classroom..
Which invention do you like best?Why ?
Step 2 Pre-reading
1 Speak out the following inventions.
2 Look and learn (the new words)
Step 3 While- reading
ReadingTask one :skimming (Fast reading)
1 What three inventions will the article talk about?
2 Which invention is the greatest invention?
Reading Task Two : Match the time with some information of great inventions.
1 In 1876 a. cars became popular
2 in 1879 b. Alexander Graham bell invented one of
the first practical telephone
3 in the early 19th century c. the first trains began to carry passengers.
4 At the start of the
20th century d. Thomas Edison developed the first practical light bulb.
Reading Task three: Read in datails and finish the blanks.