内容正文:
B3U3 The world of science
Period 2 Using language
(Para. 3) 2. I guess you _____ _____ _____(ask) about the title of your book before.
课文例句
(Para. 1 ) 1. This evening, I’ll be talking to Dr Richard
Fairhurst, whose new book The New Age of Invention
___________just _____ _________(publish).
has
have been asked
been published
(Para. 6) 3. In addition, important advances _____ _____ _____ (make) in medicine and environmental science thanks
to increasing computer power.
have been
made
(Para. 8) 4. New inventions like 3D printers
_____ _____ ____ (use) to make replacement hearts and bone parts.
(Para. 10) 5. I _____also _____ ____(tell) that you’re an inventor
yourself.
have been used
have
been told
(Para. 14)6. Nothing like this ___ _____ ________ (invent) yet and I’d say we’re a long way from an invention like that at the moment!
has been invented
使用现在完成时要注意什么?
during/over/ in the last/past+时间段, ...等时间状语
时间状语
since+时间点,
already ,
recently, lately,
so far, up to now,
for+时间段,
ever since
Practice
1. During the last three decades, the number of people participating in physical fitness programs ____________________(increase) sharply.
2. Simon_____________(attend) his father for such a long time that he understands almost every gesture of his father’s.
3. I complained to the manager of the hotel about the poor service last week, but up to now, I ________________ (receive) his reply.
4. In recent months, the China Grand Canal Museum in Yangzhou, which exhibits the history and culture of the Grand Canal, ________________(attract) a great number of visitors.
have increased
has attended
haven’t received
has attracted
Q:怎么知道上面用现在完成时的?
A: 根据时间状语
1. After several years of observation, the research group
_______________(arrive) at the conclusion that language acquisition is faster when students are exposed to the situation where it is spoken.
2. Great changes _____________(take) place in my hometown and you can see that a lot