老师：hello，everyone， my name is 谢维珍 from Beijing Fangshahigh school i hope you can learn something and enjoy my class now， lets start today well， learn unit file revealing nature using language now， please look at the learning objectives of this lesson number one get the main idea of the passage and the least expressions related to Belle diversity by reading number two get the main idea of the listening material and write down useful expressions related to the topic of cells， and bacteria number three accounts the conversation about sales and bacteria number four make a new conversation about biodiversity in last period， weve learned about the extinction of Painta island portors and the cause of the extinction and we also know the diversity of life。
老师：what is Belle diversity in your mind just think it over mark the third marks worldwild last day， a day dedicated by the united Nations to raise awareness for the protection of wild life and Belle diversity， which are essential to human survival the two thousand and twentieth theme is sustaining all life on us， there are many kinds of living things on earth each of which is different and has its own characteristics read the following passage， and find the main idea of the passage， the main idea of the passages it introduces the largest animal species， the blue Belle and the target spices the waterbear and their characteristics okay， lets read the passage again and get some detailed information of the passage while reading the passage， please think of the following two questions number one what spaces are mentioned and what is special about them？ number two what other are your life forms？ do you know of what about the first question， what species are mentioned and what is special about them there can you get the answer earth is home to millions of different species， some can be very small like bacteria and viruses which are so small that we cannot see them with only our eyes by contrast， the largest animal species so far found on our planet is the blue wheel， which can grow up to almost thirty meters in length and weiover one hundred and thirty thousand kilos， the toughest spices is probably the waterbear this tiny organism can survive temperatures from one hundred and fifty degrees centigrade to a below freezing，minus， two hundred and seventy two degrees centigrade to best survive in their environment， each species has developed its own unique physical characteristics。 from the underland part， we know the answer。 two spices are mentioned the blueware and the water buyer the blueware is the largest animal species on earth。 which can grow up to almost thirty meters in length and weigh over one hundred and thirty thousand kilos， the water bear is a toughbit spaces， which can survive in extreme temperatu
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