The lecture however, counters the arument by asserting that...

In addition, the reading material also points out that...

It is refuted by the professor who says that...

The last point in the reading is that...

It is denied by the professor who argues that...

the lecture challenges the reading.

it is stated in the reading that

Contrary to the belief, the lecture claims that

To begin with, the reading mentions that

In addition, the reading material also points out that,

it is refuted by the professor who says that

The last point in the reading passage is that

It is denied by the professor who argues that

The lecture challenges the reading.
It is stated in the reading that... Contrary to the belief, the lecture claims that...
To begin with, the lecture mentions that... The leture however, counters the argument by asserting that...
In addition, the reading material points out that... It is refuted by the professor who says that...
The last point in the reading passage is that... It is denied by the professor who argues that...