【听力】
话题:Two adaptions for fixed ocean-bottom organism used to get food.
要点1:active approach
例子1:Like the sea anomy, a colorful sea animal with arm-like structure. The arm like thing is poisonous and will sting the fishes. So when the fish comes around the anomy, it’ll sting the fish and pull it over. So that they are actively trying to get the food.
要点2:passive approach
例子2:Like the oyster, stays in the shell and doesn’t move at all. It’s shell has little openings so that when the seawater that contains food material and nutrient flows through it, those materials will get into the shell from the opening. They will look still the same from the outsider but they are actually eating.
第2题来源:大陆话题分类:Social Problem属性:大范围重点预测
话题
Task 6 学术场景
解题思路
【听力】
话题:Solidary of society. society有两种形成方式。
要点1:一是大家的生活模式相同。
例子1:比如农民,工作一样,互相理解。
要点2:二是大家互相依赖(interdependent)
例子2:比如现代社会,分工明确。
第3题来源:北美话题分类:Animal属性:大范围重点预测
话题
Task 6 学术场景
解题思路
【听力】
话题:动物用两种barrier,来跟其他动物竞争食物。
要点1:chemical way
例子1:当蚂蚁发现一种食物,他得离开一会叫其他蚂蚁来帮忙,所以他释放一种chemical在这个食物上,其他动物无法忍受这个味道,所以他们不会想吃。
要点2:physical way
例子2:另外一种蚂蚁搬一些littlestone围住食物,所以block其他动物,则其他动物吃不到这些食物。