三年的初中生活即将结束,康康的班级打算于6月26日上午举办最后一次班级活动。假如你是康康,请你根据下表内容向你班的师生介绍本次活动的安排情况。
时间 | 活动内容 |
9:00-9:50 | 谈论“长大后想做的事”;讨论如何过暑假 |
10:00-10:55 | 唱歌、跳舞、表演魔术…… |
11:00-11:30 | 打扫教室、照相合影、互留电话和地址…… |
1.字迹工整、规范;
2.80词左右(开头已经给出,不计入总词数);
3.作文必须涵盖表格中活动内容的全部要点,“……”的地方至少补充一项活动;
4.文中不得出现真实姓名和校名。
参考词汇:plan to, take photos, address, perform magic tricks, put on short plays, write farewell words(写留言), gift, telephone number
My dear teachers and classmates,
Attention, please! Our class is going to have a farewell party in our classroom on the morning of June 26, 2019.
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y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2