Great scientists（Period 3 Listening and Speaking）
task 1 pre-listeningt: just now we learned about a chinese scientist, qian xuesen, who has made great contributions on space travel in china. we will get to know another scientist, whose contribution is on botany. can you guess who he is? s: carl linnaeus, maybe darwin. t: you are right. both scientists did study botany and devoted their time to the research. as we know, carl linnaeus developed his system about how to classify species. while darwin wrote a book on the original of species, in which he explained how animals and plants developed as the environment changed. the following is about carl linnaeus. t: now, read the instructions about the listening and choose which of the following statements mist closely describes what this listening passage is about. explain why the others are wrong. s: i think the third one is right. this is about a man who finds a flower and wants to know if it is a new species of flower. because he is interested in biology and especially in the study of plants. what he wants to do is to study whether it is a new species. the other two statements can not convey the study. task 2 listeningt: what you said is reasonable. let’s listen together to find whether your answer is right. (after listening, let them check the answers. ) t: listen to the tape again and try to complete the following passage. to find the name of an unknown flower, first you have to go to see a flower __________he/she will look in a special__________written by carl linnaeus. he lived in__________ from__________ to __________. he was very important because he solved a serious problem for __________. he saw all plants and animals produce __________. some animals produce __________but others lay__________while plants__________. he used these different ways of producing young to put plants and animals into__________. for example, the group called birds lay__________to produce young and they all have __________. linnaeus put the plants and animals into smaller groups or species. he gave each one two names. one is for the large group, for example__________and one is for the species, for example __________. so a parrot would be __________. he was the first person to successfully classify all plants and animals. task 3 post-listeninglet the students fill in the blankets and then check. if the students feel it difficult to do it, let them listen it a third time. after checking the answers, ask the students to read it together. step 5 listening (page 44)