Unit 3 Conservation-Lesson1 The Sixth Extinction 词汇课件-2026-2027学年高中英语北师大版 (2019)选择性必修第一册

选修一U3 Lesson1 The Sixth Extinction 词汇课件 1.7.2013 ‹#› die out 消失；绝迹，灭绝 die v. 死亡; dead adj. 死的; death n. 死亡 ➢ die away （声音、风）逐渐减弱消失 ➢ die down （火势、情绪）逐渐平息 ➢ die off 相继死去 ➢ die from/of 因……而死 【教材原句】how quickly species die out due to natural causes, that is, the “background extinction rate”. 物种因为自然原因灭绝的速度，也就是“背景灭绝率”。 1.7.2013 ‹#› 单句语法填空 ①Their food ran out and they eventually died ________ hunger. ②The trees have been dying ________ during the severe winter, and there are few left. ③Now that the cheers had died ________， the circus tent seemed oddly quiet. of off away ✅ die of：疾病、饥饿、寒冷、年老、悲伤（身体本身的问题） ✅ die from：车祸、外伤、中毒、自然灾害（外界带来的伤害） species /ˈspiːʃiːz/ n. 物种，种（单复数同形） specific adj. 具体的 special adj. 专门的 ➢ endangered species 濒危物种 ➢ a species of 一种…… 1.7.2013 ‹#› wipe /waɪp/ vt. 擦；拭 ➢ wipe away 擦去（眼泪等） ➢ wipe … off … 把……从……擦掉 wipe out 彻底毁灭 ➢ wipe out diseases 消灭疾病 ➢ wipe out the memory 抹去记忆 1.7.2013 ‹#› unusual /ʌnˈjuːʒuəl/ adj. 异常的；不平常的 usual adj. 通常的 usually adv. 通常 ➢ as usual 像往常一样 ➢ It's unusual for sb. to do sth. 某人做某事不寻常 【教材原句】Extinctions, where entire species are wiped out, are not unusual in our Earth's history. 整个物种的灭绝，在地球历史上并不罕见。 1.7.2013 ‹#› 单句语法填空 ①The next morning, everyone in the family came to know about the ________ (usual) guest. ②_________ usual, the generous gentleman gave a lot of new books to this school. ③It is usual for him ________ (go) to the office on foot. unusual As to go [构词法知识]　un-＋adj.→反义词：unable不能的；unhappy不开心的；unlucky不幸的；unknown不出名的；unwilling不愿意的 mass /mæs/ adj. 大量的 masses n. 群众；大量 ➢ a mass of / masses of 大量的 ➢ mass extinction 大灭绝 【教材原句】Many scientists say we are now entering the Earth's sixth mass extinction. 许多科学家认为我们正进入地球的第六次大灭绝。 1.7.2013 ‹#› [误区警示]　“a mass of/masses of＋名词”作主语时，谓语动词的形式取决于of 后面的名词。 A mass of books were sent to Project Hope. 大量的书籍被送往希望工程。 单句语法填空 ①Masses of evidence ________ (show) that the major cause of the accident is his carelessness, and a mass of citizens ________ (be) in favour of this idea. ②Some people may think that a garden is no more than plants, flowers, patterns and _______________ (大量的) color. shows are masses of/a mass of 仅仅，不过 支持，赞同 varied /ˈveərɪd/ adj. 各种各样的，形形色色的 vary v. 变化；variety n. 多样化；various adj. 各种各样的 ➢ varied reasons 各种各样的原因 ➢ a variety of=varieties of 多种多样的 ➢ vary in 在……方面不同 【教材原句】The reasons for extinctions are varied. 灭绝的原因多种多样。 【练习】 The theme park features ___________ (vary) entertainment, attracting ________ (variety) of tourists. varied/various varieties 1.7.2013 ‹#› asteroid /ˈæstərɔɪd/ n. 小行星 ➢ asteroids hitting the Earth 撞击地球的小行星 ➢ asteroid impact 小行星撞击 【教材原句】According to scientists, they include volcanic eruptions, asteroids hitting the Earth from space, changes in sea levels… 据科学家所说，（这些原因）包括火山爆发、小行星从太空撞击地球、海平面变化…… 1.7.2013 ‹#› decrease /dɪˈkriːs/ n. vi. & vt. 减少；减少的量 increase v./n. 增加（反义词） ➢ decrease by 减少了…… ➢ decrease to 减少到…… ➢ on the decrease 在减少 【练习】 ①The number of people commenting on the matter is ________ the decrease. ②Fatal road accidents ______________ (decrease) in frequency over recent years. on have decreased 1.7.2013 ‹#› blame /bleɪm/ vt. 责怪，指责 ➢ blame sb. for sth. 因某事指责某人 ➢ blame sth. on sb. 把某事归咎于某人 与blame sb. for...结构类似的搭配： thank sb. for (doing) sth. 因(做)某事而感谢某人 admire sb. for (doing) sth. 因(做)某事而赞赏某人 praise sb. for (doing) sth. 因(做)某事而表扬某人 1.7.2013 ‹#› be to blame （对某事）负有责任 blame vt./n. 责备 ➢ take/bear the blame for 为……承担责任 ➢ put/lay the blame on sb. 把责任推给某人 【教材原句】This time, human activity will be to blame. 这一次，人类活动负有责任。 1.7.2013 ‹#› affect /əˈfekt/ vt. 影响 effect n. 影响 effective adj. 有效的 affection n. 喜爱 ➢ be affected by 受……影响 ➢ affect one's decision 影响某人的决定 【教材原句】It is clear that human activity has negatively affected all other species on Earth, including animals and plants. 很明显，人类活动已经对地球上其他所有物种，包括动植物，产生了负面影响。 1.7.2013 ‹#› be at risk 处境危险，受到威胁 risk n. v. 风险；冒险 ➢ at the risk of 冒着……的风险 ➢ risk doing sth. 冒险做某事 【教材原句】Of course, as we humans depend on so many species for our survival, we would also be at risk of dying out. 当然，人类依靠众多物种才得以生存，我们自身也会面临灭绝的危险。 1.7.2013 ‹#› endangered /ɪnˈdeɪndʒəd/ adj. 濒危的 endanger vt. 危及 danger n. 危险 dangerous adj. 危险的 ➢ endangered species 濒危物种 ➢ in danger of extinction 濒临灭绝 【教材原句】For example, we need to take steps to save endangered species, including setting up special areas where plants and animals can be protected. 例如，我们需要采取行动拯救濒危物种，包括设立专门区域来保护动植物。 1.7.2013 ‹#› 单句语法填空 ①As is known to all, the panda is ________ danger of becoming extinct. ②Levels of waste from the factory may be ________ danger to public health. ③The society was set up to preserve ___________ (endanger) species from extinction. in a endangered solar /ˈsəʊlə/ adj. 太阳光（能）的 ➢ solar energy 太阳能 ➢ solar system 太阳系 【教材原句】We need to change how we work and travel by using cleaner, more natural sources of energy, such as wind and solar energy. 我们需要改变工作与出行方式，使用更清洁、更天然的能源，比如风能和太阳能。 1.7.2013 ‹#› hatch /hætʃ/ vi. & vt. （使）孵化 ➢ hatch eggs 孵化鸟蛋 ➢ help … to hatch 帮助……孵化 【教材原句】They protected Old Blue's eggs, helped them to hatch, and took care of the chicks. 他们保护老蓝鸟的鸟蛋，帮助鸟蛋孵化，并照料雏鸟。 1.7.2013 ‹#› restore /rɪˈstɔː/ vt. （使）恢复 restoration n. 恢复；归还 ➢ restore habitats 恢复栖息地 ➢ restore one's faith in 恢复对……的信心 【教材原句】To help them survive, people are restoring their habitats and removing small animals that hunt them, such as mice and cats from the islands where they live. 为帮助它们存活，人们正在恢复它们的栖息地，并从它们所居住的岛屿上清除老鼠、猫这类捕食它们的小动物。 1.7.2013 ‹#› Thank you ! $