Level3.Unit3.Part1 Forms of Life

★★★★★★Forms of Life 生命形态  2019.09/18²/19/20 12.30

Mammals are covered by hair or fur, have a backbone and are warm-blooded.

哺乳动物全身被毛发覆盖，有脊椎，而且是恒温的

All female/ˈfiːmeɪl/(雌性) mammals produce milk for their young.  80

所有雌性哺乳动物都会生产分泌乳汁给幼体

       back背+bone 骨头 = backbone 脊椎骨 ；warm 温暖的+blood(ed) = warm-blooded 温血的，恒温的 ；

Reptiles/ˈreptaɪl/(爬行动物) are covered by scales/skeɪlz/(规模) and include snakes, lizards/ˈlɪzərdz/(蜥蜴) and turtles/ˈtɜːrtlz/(龟). 

爬行动物被鳞片覆盖，包括蛇、蜥蜴和乌龟

Reptiles have a backbone and are cold-blooded, which means they often rely on external sources/sɔːrsis/(来源) of heat. 

爬行动物有脊椎骨，是冷血动物，这意味着它们通常要依赖外部的热源

       cold-blooded 变温的 ；rely on 依靠，依赖 ；external 外部的 ；

Birds are covered by feathers and are warm-blooded.  86

 鸟类被羽毛覆盖，是温血动物 

Most birds can fly and many types of birds migrate/ˈmaɪɡreɪt/(迁移) great distances/ˈdɪstənsiz/(距离).   85

大多数鸟会飞，许多种类的鸟迁徙很长的距离

       feather 羽毛 ；migrate(v.)迁徙 ；migration(n.) 迁徙  →  migrate+方向

Most insects such as ants and bees have a small, 3-part body with 3-pairs of legs.

大部分昆虫，比如蚂蚁和蜜蜂都有一个小的，3部分的身体，以及3对腿

Some insects, like mosquitoes/məˈskiːtoʊz/(蚊子), spread diseases/dɪˈziːz/(疾病) that cause the deaths of many humans. 79

有些昆虫，如蚊子，传播会导致许多人死亡的疾病

Unlike animals, plants get the energy that they need from the sun.  89

和动物不同，植物所需的能源是从太阳中得到的

Plants convert light energy, along with carbon-dioxide and water, into chemical energy.

植物把光能、二氧化碳和水转化成化学能量

       convert 转化、转变 ；convert sth. into sth. 把…转化成/改成…

        → e.g.： They converted the bedroom into an office.  他们把卧室改成了办公室

跟读1：Most mammals live on land , but some live in the sea. 大多数哺乳动物生活在陆地上，但有些生活在海洋中  86

跟读2：Mammals include some of the most intelligen animals on Earth , such as elephants and human beings.   89

跟读3：Mosquitoes cause the deaths of many humans than any other animal.  66

复述1：Insects don't have a backbone , and most are cold-blooded . 昆虫没有骨干，大多数是冷血的 80

复述2：Insects such as ants and bees live in well-organized colonies.  蚂蚁和蜜蜂等昆虫生活在组织良好的殖民地中 85