牛津上海版九年级上册Module2 Unit5 The human brain课件(共15张PPT)

(共15张PPT)
Module 2 Unit 5 The human brain
Introduction
We use if sentences to talk about possible actions and the results of these actions.
An if sentence has two parts. Each part is called a clause. Each clause contains a verb.
If you stick a pin into a balloon, it bursts.
if sentences: actions with definite results
We use if sentences to talk about results that will certainly happen. In these sentences, both verbs are in the present simple tense.
If you cool water, it turns into ice.
The if clause talks about the possible action.
The second clause talks about the result that will certainly happen.
If you boil water, it becomes steam.
In if sentences, the if clause can come first or second. When the if clause comes first, there is always a comma after it,
e.g., If you cool water, it turns into ice.
Water turns into ice if you cool it.
Water becomes steam if you boil it.
What way has Pansy recommended(推荐)
Read and answer
The link method
If you want to memorize something, you should make a ________ in your mind. If the picture is ________, ________ and ________, you will remember it better.
picture
silly
strange
colourful
How do you memorize the word “smiles”
By imagining there is a ________ between
_______________ and ________________.
mile
the first letter
the last letter
Think and say
Which way do you think is the most effective way
A.
spider
B. spider: a small creature with
eight thin legs.
C. put a large spider on your hand
Way Examples
Memory is connected with our feelings.
Read and say
frightening
dramatic
=exciting, unusual
If someone says ‘This is a spider’, and then puts a large spider on your hand, you will probably remember the word ‘spider’.
Most people in China can remember where they were when the opening ceremony of the 29th Olympic Games was held in Beijing in 2008.
un
toothbrush
happy, lucky, usual
able, interesting
sweet
Share
Have a try
dramatic
Task 1.
alien
Task 2.
essential, method
Task 3.
teach, work, wait, report
Task 4.
policeman, black, robber, million, taxi, school
Task 5.
We link the word with ...
By imagining ... in our mind, ...
Assignment
1. Read the text aloud and review the new words.
2. Write about your favourite way of memorizing things at least 30 words. You can use following structures to help you.
One basic/ efficient/ ... way of improving our memory is to do ...
be connected with/ link ... with
3. Think of more ways of memorizing things and give at least one example.
We often use the probable conditional when we are stating plans. Imagine you are planning an outing, and then complete these if clauses in different ways.
B3
The word unless means if … not. For example, these sentences have the same meaning:
Unless you keep ice cream in a freezer, it melts.
Using if … not and unless
If you do not keep ice cream in a freezer, it melts.
Join the following sentences with if ... not.
C1
you improve your handwriting/you will lose marks in the exam
you will get toothache/you clean your teeth regularly
this room will get very hot/you put the air conditioning on soon
you understand this exercise/please put up your hand
you close that window/lots of mosquitoes will get in
the waiter comes soon/I shall leave this restaurant
If you do not improve your handwriting, you will lose marks in the exam.
You will get toothache if you do not clean your teeth regularly.
This room will get very hot if you do not put the air conditioning on soon.
If you do not understand this exercise, please put up your hand.
If you do not close that window, lots of mosquitoes will get in.
If the waiter does not come soon, I shall leave this restaurant.
Match the beginnings of the sentences in Column A with the endings in Column B.
C2