5老師聽力生物學(xué)專題講座

1、生物學(xué)專題講座 主講：侯小翊Weibo：侯小翊老師微信：泰迪托福講座文段精講1Promising future!1. 動(dòng)物學(xué)文段習(xí)題精練講座文段規(guī)律2Promising future!1. V+B2. 文本結(jié)構(gòu)3. 題型規(guī)律動(dòng)物學(xué)詞匯3Promising future!Zoology, invertebrate, rodent, reptile, amphibian, mammal, primates, predator, prey, homotherm, poikilotherm, creature, microbeCamouflage, migration, domestication,

2、extinction, vocalization, hibernation, echolocation, Ornithology, wing, feather, claw, bill, beak, nest, flock, hatch, fledgling文本結(jié)構(gòu)分析2Promising future!Chaffinch1. Introduction2. ContentBegging callSubsongPlastic songFull song3. Comment習(xí)題5Promising future!ETS樣題動(dòng)物學(xué)習(xí)題題解6Promising future!1. What aspect

3、 of a chaffinchs song does the professor mainly discuss? How it is used to beg for food How it has changed over several generations How its development differs from that of other songbirds How it develops from an early age 題解11Promising future!2. How does the professor introduce her description of t

4、he sounds a chaffinch makes during subsong? She contrasts the subsong of a chaffinch with the subsongs of other songbird species. She compares the sounds a chaffinch makes to those a human baby makes. She describes the sound of an adult chaffinchs full song. She reminds the class how scientists defi

5、ne begging calls. 題解7Promising future!3. What does the professor say about plastic song? It imitates only parts of the parents song. It is identical to subsong. It is instinctual and does not need to be learned. It represents the final stage in a chaffinchs song development. 題解8Promising future!4. W

6、hat is the evidence for chaffinches having a sensitive period for song learning? They begin to practice their song in the spring. They do not develop full song until their second year. They need little exposure to adult song in order to learn it. They do not make many sounds for the first five weeks

7、 of their lives. 8Promising future!Now whats interesting is that chaffinches are able to complete this process, even from only a short exposure to their parents song. Exposure during the first few weeks of life is really all they need, and after that they can remember it, even though they need quite

8、 a bit of practice to produce it accurately themselves. So the theory is that there is a sensitive period in the chaffinchs early life, its early development, a special sensitive period during which it learns what its song should sound like. So chaffinches, um, along with many other birds, learn son

9、gs early in life, and when they e adults, they dont change their songsits a copy of the parents song, like we said, okay?題解9Promising future!5. What does the professor imply when she says this: The words in the term are probably familiar to the students. The term is not important to the lecture. The students should have studied the term already. The students should have written the term down already. 題解10Promising future!6. Why does the professor say this: To correct something she said earlier To explain a term she