（1）属于金属材料的是（填序号）______；
（2）塑料手柄属于______材料，若破损______；（能、不能）进行热修补．
（3）不锈钢中除铁还含有______．（填一种元素名称）
（1）由金属制成的材料为金属材料，根据图示可知：①⑤为金属材料，②③④为合成材料，
故答案为：①⑤．
（2）塑料手柄属于合成材料，塑料手柄是由网状结构的高分子材料合成的，此种材料一经加工成型就不会受热融化，因而具有热固性，故答案为：合成 不能．
（3）不锈钢中除含铁外，还有C、Cr、Ni 等，
故选Cr．
| 完形填空。 | ||||
| I ran into a stranger as he passed by, and I at once apologized to him. We were both very 1 , the stranger and I. Then we went 2 our way after saying good-bye. But at home a 3 story is told. Later that day, when I 4 supper in the kitchen, my daughter suddenly stood behind me very 5 . When I turned back, I 6 knocked her down."Don't be in my 7 !" I shouted angrily. She walked away with her little heart 8 . On the kitchen floor later, I found some flowers by the door. That night, while I lay 9 in bed, a voice in my deep heart said,"While 10 with a stranger, you are so polite, but with the children you love, you are so easily 11 . Why are there some flowers by the door? Those are the flowers she brought for you. She 12 them herself, pink, yellow and your favorite blue. She stood quietly in order to give you a 13 , and you never saw the 14 in her eyes." By this time, I felt very 15 and now my tears began to fall. I quietly went and knelt (跪下) by her 16 , "Wake up, little girl, wake up," I said, "Are these the flowers you picked for me?" She smiled, "Yes, because I knew you'd like them, especially the 17 ." I said, "Daughter, I'm sorry for the way I acted today; I 18 have shouted at you that way." She said,"Oh, Mom, that's okay. I love you 19 ." I hugged her and said, "Daughter, I love you too, and I do like the flowers." Through this 20 , I realize what FAMILY means: FAMILY=(F)ATHER (A)ND (M)OTHER, (I) (L)OVE (Y)OU | ||||
|