One thing that helps me with teaching LHFHG is to remind myself that learning to listen to books with fewer pictures is one of the skills in LHFHG that is new, that is really just beginning to be introduced, and that takes real time - as in possibly the whole year - to make real improvement upon.

All of the boxes of plans on the left side of LHFHG are intended to be ways for dc to respond to what you've read together. So the art project, the dramatic play, the thinking games, the science, the rhymes, the Bible study - all work together to give dc the chance to respond to the history reading in a variety of ways. Some dc will do better with one way of responding, some will do better with another, but a balance is the goal.

The questions that happen to be in the history resources are not formally assigned, though it certainly is fine to discuss them. We actually look at those as a time to partner together to answer the questions. Dc are not supposed to retain everything at this age. Exposure is the purpose, as history comes around again and again.

Next time these names/events in history come around again, ds may remember this or that, and then will add more to that repertoire each go around.

As far as helping with listening skills in general, here are a few things that have helped my dc...
1) You can give a short recap of what you read last time, as in just 2-3 short sentences.
2) You can look at any titles and/or pictures, point to some pertinent things, and give some leading information, as in just a few sentences.
3) Try to read straight through without stopping as much as possible. As CM said, stopping to explain things gets between the reading and the dc. (If you do feel it is important to stop and explain something, do so at natural stopping points, i.e. read 1 section. At the end of it, recap. Read the next section. Recap, etc. However, the end goal would be to move away from this eventually as able.)
4) Look at any questions as a time to model thinking about the answers and partner with dc in answering them (i.e. If he says, 'I don't know' or gives a totally wrong answer, say, "Hmmmm, wasn't it George Washington who was the President? And let's see, what did he do in the war again?")
5) Finally, I have learned not to draw out discussions, add more of my own questions, or try to quiz my dc to see if they 'got it'. This is counter-productive. No one likes it, including me. Just thought I'd share as I've BTDT.
HTH! I think your ds sounds very normal for his age, and I think he will continue to grow throughout the year in LHFHG!
In Christ,
Julie