2019学年度北师大版选修七Unit 20 Lesson 2 & Lesson 3 Pre-reading学案设计

Pre­reading

Please match the words with their proper meanings.

1．rescue　　　　　A．order or way of doing things

2．procedure B．to make a gift of sth. for a good purpose

3．donate C．to exchange letters

4．correspond D．the result or effect of an action or event

5．meanwhile E．to appear in a radio or television programme and introduce the items in it

6．split F．to divide, or to make sth. divide into two or more parts

7．premier G．most important

8．outcome H．to save or bring away sb./sth. from danger, loss, etc.

9．cure I．at the same time

10．present J．to make someone who is ill well again

1～5____________　6～10____________

答案：1～5　HABCI　6～10　FGDJE

Lead­in

Can you recognise these scientists in the pictures? Do you know their major discoveries? Please match the major discoveries with the scientists.

A．made the world's first flight

B．proved the Theory of Gravity to be true

C．invented an advanced steam engine

D．was the inventor of telephone

答案：①D　②C　③A　④B

While­reading

Fast­reading

1．What's the main idea of Paragraph 1?

To_mention_the_scientific_breakthroughs_in_the_20th_century./To_mention_the_most_important_discoveries_of_the_20th_century.

2．List five pioneers in the discoveries according to the text.

①Albert_Einstein　②Edwin_Hubble　③Alexander_Fleming　④Eckert　⑤Mauchly

Careful­reading

(Ⅰ)True (T) or False (F)．

1．Percy Spencer discovered microwaves by mistake.(　　)

2．Einstein was at work when he thought of the equation "E＝mc2"．(　　)

3．The person who discovered penicillin was Alexander Fleming.(　　)