Let's now take a look at the birds in the cage.
Now let's take a look at the birds in the cage.
Which of these two sentences is correct? Why?
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Sign up to join this communityI don’t think either is improper, the broader context may suggest one is more natural, but syntax can be a very personal thing.
I would only use the first in the following:
“Given that previous results show that free range birds had very few infections, let's now take a look at the birds in the cage.”
I would use either in the following:
“We have just finished looking at the free range birds, now let's (let's now) take a look at the birds in the cage.”