Ⅰ.单词拼写
根据汉语或首字母提示，写出下列单词
1．The new drug has great significance(重要性) for the treatment of the H7N9 virus.
2．She expanded (扩大)her store by adding a second room.
3．The severe (严格的)teacher has gone abroad; you can breathe freely again.
4．The restrictions (限制)on the use of the playground are: no fighting, no damaging property.
5．She won't do what I ask her to do－she's very stubborn(固执的)．
6．I was never discouraged against learning English.
7．There has been a gradual increase in the number of families owning refrigerators.
8．(2019·全国卷Ⅰ·阅读理解C篇)The researchers say that the keyboard should be pretty straightforward to commercialize and is mostly made of inexpensive，plasticlike parts.
9．He gave us specific instructions on how to get there.
10．It is abnormal for such a strong man to sleep all day.
