内容正文:
Unit 2 Saving the Earth
Topic 1 Pollution has caused too many problems.
Section D
Learn some new words and phrases.
Words: coal, create, blood, planet
Phrases:in many ways, high blood pressure, as well
Be able to use some useful expressions.
With the increase in population and the development of industry, litter is everywhere.
Language goals
It _____ (be) a mess in the past. Kangkang _______ (go) there two years ago.
The government ___________ (solve) the problem.
Everything _____________ (change).
was
went
has solved
has changed
Simple past 强调过去
Present perfect 强调现在
Review
Read through Sections A-C and fill in the blanks with the correct words.
Grammar
I _____ (go) there two years ago.
It ______ (be) difficult for me to breathe.
What _________________ (cause) your cough?
How have you ______ (be) ?
Luckily, the government has ___________ (solve) the problem.
been
was
caused
solved
went
Simple Past &Present Perfect
Grammar
Oh, what a _______!
There were several chemical factories _______ waste water into the stream.
What was ______, the factory made too much noise…
Noise is _________ to human’s health.
People who work and live in noisy conditions often ______ deaf.
…many teenagers in America can hear no ______ than 65-year-old people do, …
…does great _______ to people’s hearing.
Functions
shame
pouring
worse
go
harmful
better
harm
Grammar
Warming up
1a Read the passage and complete the table on Page 34.
Learning
Pollution Cause Effect
air pollution burning_____, _____ and _____ _____ eyes and _________ problems
soil pollution _____ is everywhere, use too many __________ ______ environment and _________ food
noise pollution _______________ place for a long time make people _____ and cause ____________ pressure
light pollution _______ light kinds of ________, bad for ________
gas
oil
coal
sore
breathing
litter
chemicals
dirty
unhealthy
work in a noisy
deaf
high blood
strong
illnesses
eyes
Learning
Read and remember
be bad for