[10-20 18:18:21] 来源：http://www.67xuexi.com 高二英语教案 阅读：850次
b It is thought that: Note the use of the passive for introducing an idea.
c For one thing: This phrase is linked to The problem is... in the previous sentence. = One reason why it is difficult to feed the world‘s population is that...
d suitable for growing crops: Point out the structure: suitable +for + -ing
e And this area is becoming smaller day by day.
= And this area is becoming smaller every day. f it is being built on = buildings are being built on the land
g pests: insects or animals that destroy plants, food, etc.
h FAO: The Food and Agricultural Organization of the United Nations was founded in 1945 and has its headquarters in
i in storage = while it is being stored
j damp = fairly wet. The atmosphere can be very damp during the rainy season and grain can start to go bad.
k one in ten = one person out of ten
l starve to death: a set expression = die because they do not have enough to eat
m Take the Aswan Dam for example = consider the example of the Aswan Dam
n west of the
o corn crops: here, corn means maize. p low-lying areas: Many of these areas are below sea-level.
Step 4 Reading aloud
Speech Cassette Lesson 14. Play the tape of the passage for the Ss to listen and follow. Play the tape of part of the passage once more; this time the Ss listen and repeat. Pay attention to stress and intonation, also the sentence stress of the longer sentences.
Step 5 Note making
SB Page 21, Part 3. Get Ss to do this exercise individually, so that every S has to make an effort to re-read the text and extract the relevant information. If it is done in class, get Ss to check their notes afterwards in pairs. Alternatively, if you wish, you can set this exercise for homework. In that case, get Ss to check their notes in pairs at the beginning of the next lesson.