2019-2020学年度人教版必修五Unit5First aid Period5Using language-- Reading II 课件(22张)
2019-2020学年度人教版必修五Unit5First aid Period5Using language-- Reading II 课件(22张)第3页

The skin is an _______ part of your body and it’s largest______. You have _____layers of skin which act as a barrier _______disease, _______ and the sun’s harmful rays. The _________ of your skin are also very _________ : it keeps you _____ or cool; it prevents your body from ______ too much water;

essential

organ

three

against

poisons

warm

losing

complex

functions