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课件网) 人教新目标版 七年级下学期 21世纪英文报 初一 738期 作者：陈嘉华 What is your favorite thing about summer? What is your least favorite thing about summer? Warmup Share with us your way to avoid annoying mosquito bite. Video Let’s learn some facts about this pesty critter. 视频见附件：Why Mosquitoes Bite_ - The Dr. Binocs Show _ Best Learning Videos For Kids _ Peekaboo Kidz Answer these Questions 1. How many species of mosquitoes are there in the world? 2. Which diseases can mosquitoes spread? 3. What can we do to treat the mosquito bite? and make the itch go away? 美国首次释放转基因蚊子。 Summer brings warm days, rainstorms ... and mosquitoes (蚊子). These little bugs can be very annoying (烦人的) and even make us sick. But a British company is trying to stop them from bothering us. UK company Oxitec will release 144,000 mosquitoes in the coming weeks in the Florida Keys, US. These mosquitoes are genetically modified (基因编辑的). Mosquitoes can spread diseases like malaria (疟疾) and dengue fever (登革热). But the modified mosquitoes can stop this. The modified mosquitoes are male mosquitoes that don’t bite. When they mate (交配) with female mosquitoes (which do bite), a special gene (基因) stops the female from making female mosquito babies. This means no more female mosquitoes will be born. This will stop them from spreading disease. Some people are worried about this. It’s a new technology, so people don’t know if it will harm (危害) the environment. Some scientists say that Oxitec should provide more information about its technology.? BY MIKE FUKSMAN,?21ST CENTURY TEENS STAFF Listening Scanning reading Where will Oxitec release mosquitoes? In the UK. In the Florida Keys. All around the US. In both the UK and the US. What do we know about these mosquitoes? They are female mosquitoes. They won’t get close to people. They are genetically modified. They have dengue fever. Scanning reading What is Paragraph 3 about? Why male mosquitoes don’t bite. Which special genes mosquitoes have. How female mosquitoes have babies. Why mosquitoes will stop spreading diseases. Scanning reading What might the word “provide” in the last paragraph mean? give hide read change Scanning reading Critical thinking Local residents in the Florida Keys continue to protest the release of "mutant" mosquitoes. Summer brings warm days, rainstorms ... and mosquitoes (蚊子). These little bugs can be very annoying (烦人的) and even make us sick. But a British company is trying to stop them from bothering us. Grammar make sb. sad calm angry sick worried 口语：You make me sick. 你让我恶心。 (很不礼貌的话哦，对同学和老师可不能这么说。) stop sb. (from) doing sth. 阻止某人做某事 We should stop people (from) polluting the river. The policeman is stoppi ... ...
