(
课件网) Unit 4 Amazing Plants and Animals 第5课时 Section B (3a-3c) R·八年级上册 Watch the video What does this video talk about The blue whale is the largest animal on earth. What do you know about the blue whale Read the text and complete the table. 3a Blue whale facts Weight Where they live Food How long they live Importance in nature The blue whale is the largest and heaviest animal on earth. It can weigh as much as 200 tons. Many people like watching blue whales swim, and they think it is one of the most beautiful things to see. Blue whales live in all oceans except the Arctic Ocean. They eat a lot, but they eat some of the tiniest animals in the ocean. A blue whale can eat around four tons of these a day. Read and learn 在地球上 多达，达到……之多 n. 大海；海洋 prep. 除……之外；除了 adj. 极小的；微小的 Blue whales can live up to 90 years. When a blue whale dies at sea, it becomes food for many kinds of animals living in and around the sea. This food lasts for over a year and it helps to create a lively and healthy ecosystem. Blue whales play an important role in our world, so we must protect them. Read and learn live up to活到……岁；达到……的寿命 adj. 精力充沛的；生机勃勃的 扮演一个重要的角色 Blue whale facts Weight Where they live Food How long they live Importance in nature as much as 200 tons in all oceans except the Arctic Ocean some of the tiniest animals in the ocean up to 90 years When a blue whale dies, it becomes food for many animals and it helps to create a lively and healthy ecosystem. Check answers. 1. Blue whales can live up to 90 years. 蓝鲸的寿命可达 90 年 。 达到；符合（期望等） live up to 活到（某一年龄、岁数等） He always lives up to his parents’ expectations. 他总是不辜负父母的期望。 An elephant can live up to sixty years. 一头象能活到60岁。 Language points 拓展 同义词 reach reach 达到（某一数量、程度、年龄等 ）；在表示活到某一年龄时，可与 “live up to” 替换。 Some trees can reach a height of 30 meters. 有些树能长到 30 米高 。 Some people can reach 90 years old. 有些人能活到 90 岁 。 2. Blue whales live in all oceans except the Arctic Ocean. 蓝鲸生活在除北冰洋以外的所有海洋中。 （连词）除了,只是；除非 （介词）除……之外；除了 The restaurant is open every day except Monday.这个饭店除了星期一每天都营业。 其后接名词、代词等作宾语，表示某人或某物不包含在某一范围内。 except I won’t go except you come with me. 除非你跟我一起去，否则我不会去。 My dress is similar to yours, except mine is blue.我的连衣裙和你的相似，只是我的是蓝色的。 辨析 except, besides与but except 除……之外；除了 强调所排除的内容不包含在内，含有“减去”的意思 besides 除……之外（还有） 包括 besides 后面的内容，含有“加上”的意思 but 除……之外 与 except 用法基本相同。常用于no, nothing, anything 之后 They all went to the party except Ann.除了安，他们都去了聚会。 We have a lot in common besides music.除了音乐，我们还有很多共同点。 There is no one but me.这里除了我没有别人。 Imagine you are a blue w ... ...
