Unit 19　Modern agriculture

sa:in the last two lines,“which”refers to“golden rice”.
t:what is the other name of “golden rice” in the text?
sa:gm rice.
step ⅳ.reading
t:now read the text again and answer the questions in post reading.if you are not sure about your answers,have a discussion with your classmates.
(after the students' discussion)
t:please turn to page 35.let's answer the questions.sh,give your answers to the first five questions.
sh:they are:1.d　2.a　3.c　4.c　5.c
t:is he right?
ss:yes,he is right.
t:now let's do part 2.
si:i want to change apples.i want them not only to grow bigger and more delicious,but also of the same size.because some of the apples now are smaller and not delicious and the apples of the same size are popular in the market.
sj:i want to change fruit trees.i want them to grow shorter so that the fruits on them are easy to pick up.and they must give us more fruits so that the farmers can make more money and become richer.
t:that's a good idea!i have the same opinion as you.
sk:i want to change carrots.i want them to grow much bigger.because the carrots our villagers grow are smaller.
sl:i want to change the vegetables people usually eat.i want them to be better for people's health.so they will spend less money on medicine.
sm:i want to change cows.i want them to have more babies.so they will not be expensive to buy.if so,more farmers can buy them and become rich.
sn:i want to change fruit trees.i want to plant the trees growing in the south.so we will have more kinds of fruits than ever before.
t:you've done well.after class,continue to think about more good ideas.now i'll explain some expressions and language points of the text to you.please look at the screen.
modernize v.to make(sth.)suitable for modern use or for the needs of the present time.
e.g.he spent a lot of money modernizing his house.
depend on:health depends on good food,fresh air and enough sleep.
short of:he didn't buy anything because he was short of money.
control v.have power over(sb.or sth.),rule,direct
the machine is controlled by this button.
control one's anger
stand for:usa stands for the united states of america.
modify:to change(sth,such as a plan,an opinion,a condition,…)
to modify anything is to change it a little.
t:(after explaining the words and expressions on the screen.)now read the text and see if you still have something you find difficult to understand.
(teacher goes among the students to explain any questions raised by the students.)
step ⅴ.listening and reading aloud
t:let's listen to the tape.i'll play it twice.the first time i play it,just listen.when i play for the second time,you can read the text after it.then please read the text aloud after i play the tape.