27×0.99=
|
（1）27×0.99
=27×（1-0.01），
=27×1-27×0.01，
=27-0.27，
=26.73；
（2）
+1 20
+1 30
+1 42 1 56
=
+1 4×5
+1 5×6
+1 6×7
，1 7×8
=
-1 4
+1 5
-1 5
+1 6
-1 6
+1 7
-1 7
，1 8
=
-1 4
，1 8
=
．1 8
天太热，你为什么不把夹克脱掉呢？ 小题2:It’s a bad manner people in trouble. (laugh) 嘲笑处于困境中的人是不礼貌的。 小题3:She often late with her mom to watch movies.(stay) 她经常和妈妈一起熬夜看电影。 小题4:Look! The children the story about the Chinese Spring Festival. (listen) 瞧！孩子们正在听有关中国春节的故事。 小题5:Each student can many things after they leave junior high school.（look） 初中毕业后每个学生都有很多东西可以期待。 小题6:They many trees in order to build a new house last year. （cut） 为修一栋新房子，他们去年砍了很多的树。 小题7:Let’s hurry！I think we them in a minute. (catch) 快点！我想一会儿我们将赶上他们。 小题8:Usually we some groups to practice conversations in English class. (divide) 英语课上，我们通常被分为几个小组练习对话。 小题9:Because it was too noisy outside last night, we all found it difficult . (fall) 由于昨晚外面太吵，我们发现很难入睡。 小题10:I think we the education problems of children left behind in villages in recent years. (pay) 我认为在最近几年里我们已经对乡村留守儿童的教育问题给予了关注。 |
