Task 2
这题没问题,例子很有趣哈。一点建议,在罗列人名之前可以解释语句,as the study of physics keep advancing, theories of XX, XX and XX came out, and students nowadays have to study all of them.
一二题内容都没什么问题了。你发音很清楚,语调也不错,个别音纠正一下就OK。
上次一二题good?
Task 3
OK。这题答得不错,继续保持。
Task 4
要点都齐了。
说例子的时候注意refer to the concept. 比如:pronghorn can run very fast from its predators, but why does it run so fast? according to relict behavior, the purpose of running fast disapperaed long time ago...然后说lion的问题