可能失败的危险使我们更加努力地工作。 Translation
开始一项新生意总是很有风险的。 It’s always a risk starting up a new business. at risk: in a dangerous situation
处于危险中
e.g. All houses within 100 meters of the seas are at risk of flooding. 距大海一百米之内的房子都有被洪水淹没的危险。 run/take a risk: to do sth. you know might be dangerous 冒险 e.g.别冒险了，给警察打电话吧。
Don’t take any risks ― just ring the police.
Assignment: Do exercises III(page 150-151).
The Third Two Periods
Ⅰ.Teaching Aims
1. Master all the new words and phrases. 2. Understand long and difficult sentences.
Ⅱ. Key Points
1. The sentence pattern “…having gone through a good deal of therapy, I learned to…”.
2. Writing skill —stages in the argument. 3. Translating skills: ellipsis and supplement.
Ⅲ. Difficult Points
1. The sentence pattern “…if you were exposed to HIV through
unprotected sex, you could use…”. 2. Translating skill: ellipsis and supplement.
Ⅳ. Teaching methods
situational teaching ,discussion, group study. V.Teaching Procedures:
1. Recall words, phrases, main idea of the text.
2. Enrich the students’ word power. (Do Ex. III & IV on P150-151) 3. Break the class into groups to do Oral Practice in the students’ book. 4. Introduce writing skill —stages in the argument. 5. Introduce translating skill: ellipsis and supplement. Summary:
Scientists have found that a chemical in the skin of the Australian red-eyed tree frog can block infection by HIV. And the chemical is very unique in that it can kill HIV particles but leaves the immune system unharmed. Also the scientists hope that they could develop a cream to get infected cells. In order to carry out the research, they have got a grant
from the American Foundation for AIDS Research to continue their work. But today, what the scientists are worried about is that the number of the red-eyed tree frog is in huge and rapid declines.
Assignment:
1. Study Passage B, Passage C after class. 2. Do the rest exercises on the textbooks. 3. Study Unit 7 in Fast Reading (Book 2). Teaching notes: