This week's parsha contains a number of familiar passages. One which might be slightly more familiar to those who daven נוסח ספרד is אַתָּה הָרְאֵתָ לָדַעַת כִּי ה' הוּא הָאֱלֹקים, "you have been shown, etc." Although the שוא under the רי"ש is indeed a שוא נח, it is important not roll over it completely and place the צירי under the רי"ש. In other words, it should be pronounced "har-ei-sa." If it is mispronounced "ha-rei-sa," it would seem that it might confuse the word to seem like it is of the root הריון. I will let the experts chime in on the actual gravity of the mistake, whether the alternate meaning is in fact true. But I think the correct pronunciation is indisputable.