Good morning/afternoon, my dear judges. I'm number ___. May I begin now？Ok. Good morning/afternoon, boys and girls. Let’s begin our class.
StepⅠ Lead-in
Show a video about Ss’ having night class, with mosquitos flying and biting.
T: It’s Summer now，what troubles you most is...?
S1: Mosquitos.
T: right! But only because they bite us? Yes, they can also spread diseases,such as malaria [m??leri?]. only In 2017, an estimated 219 million cases occurred worldwide and there were about 435 000 deaths from malaria globally. But fortunately,the best cure has been found.
What’s it? Who has found it? With these questions, turn to page 52--A Medical Pioneer
