1、Unit 3Unit 3Unit 3Unit 3CONSERVATIONCONSERVATIONCRAZY BRIDGES FOR ANIMALS To view and talk about how human activities can affect animals behaviour To view for understanding To summarise information To express innovative ideas that may help animals cross human barriersActivate and shareActivate and s
2、hareDo you think human activities can affect animals behavior? If yes, how? Give some examples.Why did the chicken cross the road? We may never know since shes probably never got to the other side. This video presents different barriers animals face when living in human-built environments, and also
3、offers some solutions. View and learnView and learnWatch Part 1 of the video. Tick the human-made things that affect animals lives.roadsunderpassespipelinesfootbridgespainted linesclear-cut corridorshigh-tension power linesroads of rocksSome words you may need to know:flatten v. to become or make st
4、h become flat or flatter 压扁confront v. to deal with sth or to face sth 使遇到，使面对infrastructure n. the basic systems and structures that a country or organization needs in order to work properly, for example roads, railways, banks etc 基础设施obstacle n. an object which blocks your way 障碍物steer clear: deli
5、berately avoid 躲开，避 开ultraviolet adj. 紫外线的, 缩写成UVstranded adj. unable to move from the place where they are (人或交通工具) 被滞留的; (船)搁浅Watch Part 2 of the video. Judge whether the following statements is True of False. Write T (true) or F (false). Explain why.1. Its not likely for humans to get rid of road
6、s, power or pipelines now.“One solution is to get rid of these obstacles, but we arent likely to give up roads, power of pipelines anytime soon.”2. High-tension power lines, as well as clear-cut corridors, pipelines, roads of rocks and painted lines on the ground do no harm to animals.These human-ma
7、de things can affect animals lives. They can make animals isolated. If enough animals become isolated, entire populations can dwindle and even disappear.3. Even if the barbed wire fence is removed, its stopping power can stick around.“Even we remove physical barriers, their stopping power can stick
8、around.”Some words you may need to know:dwindle v. to become gradually less or smaller逐渐减少，缩小，变小get rid of : to throw away 丢掉，摆脱barbed wire: wire with short sharp points on it带刺铁丝In the final part, the speaker introduces some bridges which animals can use to cross the obstacles. Watch and match the
9、animals with their possible bridges.Animals BridgesDeer Fish CrabsElephantsMonkeysOverpassesUnderneathSalmon cannonsSome words you may need to know:ingenuity n. skill at inventing things and thinking of new ideas 心灵手巧，善于创造发明Salmon Cannon: 鲑鱼炮Watch the whole video. Read the first part of statement be
10、low and find a suitable ending from the box on the right to make each statement complete.1. Unintentional fences that may look harmless to us2. If many animals are stranded on one side,3. Even when we remove physical barriers,a. animals still wont cross the divide.b. they will become isolated from f
11、ood, mates and protection. c. are some of the most effective animal barriers.Express yourselfExpress yourselfDo you think these bridges are good enough for animals? Can you come up with some other innovative ideas that may help animals cross the barriers?How can we change our activities in order to reduce the influence on animals lives in our daily life? Think as many solutions as you can and write them down.
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