1 . Being exposed to strong sunlight will do harm to your ________(皮肤).（根据汉语提示单词拼写）

2 . We have three layers of________ (皮肤) which act as a barrier against disease, poisons and the sun’s harmful rays. (根据汉语提示单词拼写)

3 . When the autumn comes, the air is so dry that people’s ________(皮肤) becomes dry, too.(根据汉语提示单词拼写)

4 . He fell down and tore the_______(皮) from his knee. (根据汉语提示单词拼写)

5 . Her son’s __________(皮肤) improved beyond belief. (根据汉语提示拼写单词)

6 . Our ________(皮肤) acted as a barrier protecting our organs from being harmed. (根据汉语提示单词拼写)

7 . She’s got beautiful, clear _______(皮肤). (根据汉语提示单词拼写)

8 . The s________ is an essential part of your body and it’s the largest organ. (根据首字母单词拼写)

9 . While the sun’s rays can age and harm our ________ (皮肤) , they also give us beneficial vitamin D. (根据汉语提示单词拼写)

10 . While the sun’s rays can age and harm our ________(皮肤), they also give it beneficial Vitamin D. （根据汉语提示单词拼写）