Callan New Edition Stage 9 Lesson 139 on pages 775-776

レッスンで出てきた文法・単語	VOCABULARY: sharp  blunt  sharpen grind - ground - ground  flour  wheat harm  harmful  harmless creature  SENTENCE STRUCTURED: I'm fine, but I still have jet lag. I can't sleep well because of it. I put the chocolates on their desk during our lunch time. Some people came to me personally to say thank you. By a sharp knife, we mean one which has an edge that cuts well. The opposite of "sharp" is "blunt". We sharpen a blunt axe by grinding it on a stone. Flour is wheat or corn that has been ground into a powder. Yes, I think I should be allowed to do whatever I want if it doesn't harm anybody else. I think mosquito is the most harmful creature on earth. I think chicken is the most harmless creature on earth. Yes, if I ate some vegetables straight from the garden without washing them first, I think it would do me some harm.
レッスンで利用した教材	Callan New Edition Stage 9
レッスンで利用した教材のページ数	775-776