Task 3
on campus, not "in"
"not unnecessary"=necessary,这里意思反了
要点概括得ok
Task 4
effort,peel 发音错误
"the number of each one done" better be:the number of potatos each person peeled was recorded separately
实验结果描述的不太清楚,可以说when the researchers compared the average number of potatos peeled by the two groups, they found that people who worked in a group peeled significantly fewer potatos than those who worked alone. 分成两句话表达,说起来会舒服一些
Task 5
available发音错误,另外原题说的是two weeks later,不是two days
on the internet, not "in"
这题内容ok
Task 6
internal, external 两个音都发的不太准
"the first one is internal, she.../the second one is external,he..."这个表达不太好,没有交代这个所谓的she、he都是谁,有点突兀。可以说成:The girl in the interview tends to think internally, she...| On the contrary, the boy in the interview tends to think externally, he...