高中英语 Unit3 Science and nature Project学案2 牛津译林版必修5

Unit3 Science and nature ProjectEnjoying a debateHaving a debate will be a good way of practising English. Debating teaches how to be an effective speaker, using the language in a fluent and clear manner to be understood by your audience. As a result, it helps prepare you for tomorrow's world. Moreover, debating helps to develop your personality. Working with your members, you can benefit a lot from all the activities involved in a debate. You’ll learn to overcome your shyness and speak up when your opponent challenges you. Much importance has been attached to debating in high schools round the world, western countries in particular.Why not enjoy a debate? It will be an amazing experience for you, me, and all.Word/Expression/sentence banksuperb, award, overdevelop, famine, anxiety, consume, transform, frighten, impress, production, eager, extinction, overdevelop,victim,horrible,pace,absurd,cautious, conflict, responsibtlity, illegally, administrationfollow in one’s footsteps; deal with the consequences; toy with; at the mercy of; side effects; sustainable development; nuclear weapons; nuclear radiation; euthanasia; cloud seedingin fovor of; be strongly against; according to; a wide range of viewers; take ``` into consideration;pandora’s box；One per son's meat is another’s poison.Debate language AThat’s one way to think about it, however,….At first sight, their argument seems to be true. But….The other team has tried to make some good points, however, they forgot to think about some very importa nt issues, namely….Don't you think it would be better...,O n the contrary…The point you have made is interesting but negated by the fact that...Debate language BHonorable judges, distinguished guests, ladies and gentlemen.....To start with…,for one thing, for another;firstly, secondly,take… for instance.according to your logicThe reason why...,what I mean to say was…The simple truth is…A recent study has shown that…,W e believe it is necessary to …Don't win a debate but lose a friend.M5 U3 ProjectⅠ. 单项填空1．I just wonder how he can feed a family of eight on such a low ________.A. basisB. stageC. incomeD. track2．It seems __________ the poor guy is going to die of __________.A. that; scareB. as though; frightC. as if; frightenD. that; scared3．No one knows ______effects the GM material might have on the food chain.A. whatB. whichC. whoseD. how4．Chemical pollution will bring about a threat to agriculture and food chain, and ________ to human health.A. frequentlyB. significantlyC. steadilyD. consequently5. In October, the price of the ________ to Mount Tai has risen by50 yuan.A. permissionB. admissionC. introductionD. instruction6. The poor mother had no choice but have her son _______. She had no money to supporthim to finish the education he needed.A. adaptedB. adoptedC. adjustedD. applied7. All the teachers are well aware of the fact that most students, especially teens,need help and encouragement _______ punishment.A. other thanB. rather thanC. or ratherD. more than8. Had I known about this computer program, a huge amount of time and energy _______.A. would have been savedB. had been savedC. must be savedD. was saved9. Even if she is ________ the proposal now, we can't rely on her support; she isthe kind of person who blows hot and cold.A. in honour ofB. in face ofC. in need ofD. in favour of10. With efforts _______ conservation, we may believe that people will enjoy ahealthy life without the environment around them ________.A. focused on; sufferingB. focusing on; sufferingC. focused on; being sufferedD. focusing on; suffered11. “By no means,” declared the head teacher, “______ give way to disappointmentin your studies.”A. you wouldB. you willC. shall youD. might you12. People have the belief _______ factories should produce fewer things from rawmaterials, _______ the supply is growing smaller and smaller.A. which; thatB. that; of whichC. that; whoseD. which; whose13. Some special projects are ________ to protect our environment, so we are surethat we are _____ to having a clean and beautiful home in the near future.A. on the way; under wayB. on the way; in the wayC. in the way; on the wayD. under way; on the way14. It’s said that the food supplies in that flood-stricken area have ________ andwhat is worse, the patience of the poor people there is _______.A. run out; using upB. been run out; used upC. been used up; running outD. used up; being run out15. You’d better get well prepared ahead of time f or the busy days _____,or youwill have to end up ____in vain.A. to come ; regrettedB. to come; regrettingC. coming; with regretD. coming; regretfulCBADB, BBADA, CBDCBExtensive readingIs GM food a good bet?FACED with shrinking farmland and an increasing population, the Chinese government is taking an open attitude toward genetically modified (GM,) food. In November, the Ministry of Agriculture gave safety certificates for the production of two types of GM rice and one type of GM corn in China.The announcement caused great debate on the Internet. In a recent survey conducted by China Daily and , more than 85 percent of respondents were worried about the potential health hazards of GM food. Several forums against GM food even posted messages requesting signatures from netizens against the commercialization of GM rice, using the slogan “Saving our children”.“If the world has not reached a consensus on GM food safety, it is too proactive and risky to commercialize GM crops on a la rge scale,” said Zheng Fengtian, vice-dean of the Rural and Agricultural Development Institute at Renmin University of China.However, supporters of GM crops have argued there is no clear evidence that GM crops pose safety risks to either people or the environment.Wu Yongning, a food safety specialist from the Chinese Center for Disease Control and Prevention, said current studies have not proven GM food is harmful to consumers’ health. “I am not ruling out all possible risks, but the risks of GM food are no greater than those of traditional ones, given the heavy use of pesticides in growing traditional food,” he added.According to the International Service for the Acquisition of Agri-biotech Application (ISAAA), about 224,000 tons of pesticide was saved during the decade between 1996 to 2006, thanks to the expansion of GM planting.Another benefit of GM food is its amazing yields. Huang Dafang, director of the Biotechnology Research Institute at the Chinese Academy of Agricultural Sciences, said that using GM technology would help the country achieve the target of increasing grain output by 50 million tons between 2009 and 2020.GM soybeans are already widely consumed in China, as well as in the United States. Will GM rice be next? While scientists and social activists are taking their sides, Yuan Longping, “father of hybrid rice” and China’s top agricultural scientist, was neutral on GM food. “We shouldn’t dismiss GM food just like that, some GM foods are safe”, said Yuan, “I would like to volunteer to test GM rice”.Extensive reading AScientists have found a gene that will allow rice to survive longer in rice paddies that are under water. They hope their discovery will mean the crops will last longer in regions that are regularly flooded. They also hope they will get bumper harvests. This is good news for the millions of people who suffer from food shortages because of heavy rains. The research is from teams from the University of California and the International Rice Research Institute. Their findings have been published in the science journal Nature.France's government on Wednesday asked a health watchdog to carry out a probe, possibly leading to EU suspension of a genetically-modified corn, after a study in rats linked the grain to cancer. Another concern is that crop plants engineered for herbicide tolerance and weeds will cross-breed, resulting in the transfer of the herbicide resistance genes from the crops into the weeds.Genetically-modified foods have the potential to solve many of the world's hunger and malnutrition problems, and to help preserve the environment by increasing yield and reducing reliance upon chemical pesticides. Yet there are many challenges ahead for governments, especially in the areas of safety testing, regulation, international policy and food labeling. However, we must proceed with caution to avoid causing unintended harm to human health and the environment as a result of our enthusiasm for this powerful technology.Frank has a very positive attitude towards science and views its purpose as making new developments that improve the quality of life. He believes that GM food could have far reaching impacts on the world food economy and have the potential to bring both benefits, such as improving the nutritional content of food, and risks, such as impacting on farmers’ livelihoods.Extensive reading BThe researchers believe the new GM milk is a healthy alternative to milk powder, which many infant nutritionists say is not so good for babies. Researcher Professor Ning Li said it would be as safe as milk from ordinary dairy cows. He believes it will be very popular, saying: “The milk tastes stronger than normal milk.” He said: “There are 1.5 billion people in the world who don't get enough to eat. It's our duty to develop science and technology, not to hold it back.”Extensive testing of GM foods may be required to avoid the possibility of harm to consumers with food allergies（过敏）.They argued against the claim that GM food is unnatural, viewing it as an extension of evolving scientific and agricultural practices. The potential risks of GM food were recognised but it was claimed that these were outweighed by the benefits.Christine, who is very interested in food and believes there is a very strong linkbetween food and health, th inks that GM food is “not right‟ because it is unnatural and “against the laws of nature‟. She thinks that the human body is not suited to GM food and that eating it could have a direct negative impact on health.The European Union announced plans on Tuesday to temporarily ban the use of animal cloning for food production, while allowing imports of food derived from the offspring of clones from the United States and elsewhere. "Food from cloned animals is safe. In fact, the scientific opinion is that it cannot be differentiated in any way from food from normally bred animals. The issue is animal welfare," EU Health and Consumer Commissioner John Dalli told reporters.。