1、Idioms,give up The doctors had given her up but she made a remarkable recovery. 医生们已放弃了治愈她的希望，而她却恢复得很好。 Why dont you give him up? 你怎麽不和他一刀两断呢? You ought to give up smoking; I gave it up last year. 你应该戒烟，我去年就戒掉了。 She doesnt give up easily. 她做任何事都不轻易放弃。 They gave up without a fight. 他们不战而降。,Idioms,2.
2、go through with to complete something that you have begun or promised 做完， 完成， 贯彻执行 Hed threatened to quit many times, but I never thought hed go through with it.,Idioms,3. hang in there do not give up 坚持， 不气馁 Hang in there exams are almost over.,Idioms,4. stick with to continue to do something Once
3、Stephen takes up a hobby, he sticks with it.,Idioms,5. sweatout informal to wait nervously for an unpleasant situation to end or improve 苦熬; 忍受下去;坚持到底 Long term investors are used to sweating out economic downturns.,General Vocabulary Exercise,1-5 C C C A C 6-10 C A C B D 11-15 B B B D C 16-20 C A D
4、 A A,Analogies,14 C B B D 58 A C D C,Cloze,branch made more on problem less realize ecology natural without strict results,Section B,The passages in this section are meant to be read through quickly. Try to finish each one within 4 minutes, then tell us the topic and main idea. At last finish the ex
5、ercises.,Passage 1,Topic: balance of nature Main idea: Nature provides a population to occupy a suitable environment and cuts down surplus population to fit the available food supply. Means of nature reducing surplus population is predators, parasites and diseases. Keys: 13 B C B,Passage 2,Topic: Th
6、e economic benefits of the wild resources Main idea: Our welfare is intimately tied up with the welfare of wildlife. The economic benefits of the wild resources are enormous. The loss of wildlife would be a global tragedy with far-reaching effects on the food supply. Keys: 4 5 F T,Passage 3,Topic: D
7、eserts Main idea: The definition of deserts and the size of some deserts in the world. Keys: 67 C A,Passage 4,Topic: Different levels of study in ecology Main idea: Ecologists study the interactions of organisms at several different levels of complexity: population, community and ecosystem. Keys: 89
8、 C A,Passage 5,Topic: Ecosystem engineer Main idea: Two types of ecosystem engineer: Autogenic engineers for example trees and corals allogenic engineers like beaver. Keys: 1011 B B,Section C,15 T T F T F 68 F T F T F,How much do you know about the Holocaust? What do you think are the causes of Nazis Holocaust?,Pre-reading questions Unit 8,
