问题
填空题
水是生命之源，普通人每天大约摄入2L水，这些水相当于______m3，约______kg．
答案
V=2L=2×10-3m3，
∵ρ=
，m V
∴m=ρv=1.0×103kg/m3×2×10-3m3=2kg．
故答案为 2×10-3；2．
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水是生命之源，普通人每天大约摄入2L水，这些水相当于______m3，约______kg．
V=2L=2×10-3m3，
∵ρ=
，m V
∴m=ρv=1.0×103kg/m3×2×10-3m3=2kg．
故答案为 2×10-3；2．
On my way home I knocked into a stranger as he passed by. “Oh. I’m terribly sorry,” I said. “That’s all right. Please excuse me too; I wasn’t even 26____ you. I wish I didn’t hurt you.” We were very 27 . We said good-bye and went on our way. But at home we often 28 our loved ones in a different way. Later that day, while I was cooking the evening meal, my daughter stood beside me very quietly. When I turned, I nearly 29 her down. “Move out of the way.” I shouted. She walked away, tears (眼泪) in her eyes. While I lay awake in bed, I realized how 30 I’d spoken. So I decided to get up to say sorry to my daughter. On the way to her bedroom, to my surprise, I found some 31 by the door of the kitchen. At that time my tears began to fall. I quietly went and got down on my knees by her 32 . She woke up and put her arms around my neck when I kissed her. Then I asked, “Did you pick these flowers for me?” She smiled, “I found them out by the tree. I picked them 33 they’re pretty like you. I knew you’d like them. I stood quietly in order to give you a surprise.”“Oh dear, I’m really sorry for the way I acted today; I shouldn’t have shouted at you.” “ That’s okay. Mom. I 34 you anyway.” I suddenly realized what a clever way it is to explain the word 35 like this: (F) ather (A) nd (M) other, (I) (L) ove (Y) ou!
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