【正文】
e already seen examples of heterogeneous mixtures.Lecture 41. What is the main purpose of the lecture?ATo explore possible solutions to an anthropological mysteryBTo analyze the results of a nutritional experimentCTo explain why human beings first started creating ceramicsDTo examine changes in the dietary preferences of an ancient culture2. According to the professor, wtiy would the ceramic vessels used by ancient Arctic people be likely to break?AAncient Arctic people used cooking techniques unsuitable for ceramic pots.B Ancient Arctic people were frequently moving from place to place.CThe vessels were not made with highquality clay.DThe vessels were often exposed to extreme temperatures.3. Why does the professor mention that the Arctic climate is cold and wet?ATo explain why ancient Arctic people found warm food appealingBTo explain why ancient Arctic people required a diet that was rich in meatC To explain the difficulties of manufacturing pottery in such a climateDTo explain why some foods could not be stored in clay pots4. What does the professor imply about ancient Arctic people’s food preferences?AThey liked raw foods better than minimaIly cooked foods.BThey enjoyed eating foods that had been prepared in contrasting ways.CTheir preferences changed dramatically over time.DThey liked foods cooked in ceramic vessels better than foods cooked in other types of containers.5. According to the professor, why did ancient Arctic people cook using small fires?(Click on 2 answers)ATheir pottery could not withstand intense heat.B Small fires made it easier to control cooking speed.CCooking had to be done indoors.D Fuel was difficult to obtain.6. Why does the student say this:AHe wants to make sure the professor is referring to the past and not the present.BHe does not understand why making ceramics in the Arctic is considered challenging.CHe thinks the fact that ancient Arctic people made ceramics requires some explanation.DHe does not believe the ancient Arctic people actually made ceramics.托福TPO45聽力答案CONVERSATION1: CONVERSATION2: LECTURE1:LECTURE2: LECTURE3: 2BABB LECTURE4: