用括号内所给词的适当形式填空（每空一词）。

小题1:I enjoy reading this kind of ______ magazine. （每周）

小题2:It is good for your health to _________ deeply. （呼吸）

小题3:It ______ on the two sides of the river.（位于）

小题4:A large number of new ______ will live in Yangzhou.（移居者）

小题5:The small town is becoming more and more ______ and polluted.（拥挤的）

小题6:His mother has devoted ______ to the teaching of Home Economics.（she）

小题7:The making paper was a Chinese ______. （invent）

小题8:It is well ______ that Yangzhou is one of the most beautiful cities in our country.（know）

小题9:He had been deeply affected by the ______ death of his father. （suddenly）

小题10:There will be ______ no rain tomorrow.（probable）

单纯的聚甲基丙烯酸甲酯太脆，且对底漆的附着力差，溶剂不易发挥尽，其原因是（）。