The lecturer claims that ...( 可用个从句 比如 the new policy, which ...., will ..)
This claim is not in agreement with that of the reading passage, which suggests that...
First, the lecturer argues that...(according to the lecture,...)
This is because ...,(which means... 转述一下).
Clearly, the professor's argument disproves it's counterpart in the reading that...
Moreover, the professor believes that... Then he supports this point with the fact that...(In other words, 转述一下...)
This point of view is in marked contrast to the assertion in the reading passage that...,
Finally, regarding xxx(xx话题) the lecturer contends that..
He/She proves that this claim is indefensible by pointing out that...
This is in direct contradiction with the claim in the reading passage that...
All in all, on the basis of the evidences presented, the professor clearly identifies the weakness(wrong parts) in the reading passage and forcefully show that...(主题句) .
注意用词的替换， 不要老用because 啊 because of啊 也不只是换成due to啊 还可以先讲目的再讲做法， 比如in order to , for the sake of 等等。