在《水调歌头(明月几时有)》中,苏轼自言想要重返天上,但又有所顾虑,原因在于“(),()”。
Lingling is now reading books in the school l__________
Chinese people are very good at table t_____,and it's our favorite sport
What ’s the w_____ like in spring? It's warm
()1. Could you help me, please?A. OK.
()2. Thanks a lot.B. You're welcome.
()3. Let's put the books in the box.C. It's Monday.
()4. Can you carry it?D. No ,it's full.
()5. Who's on duty today?E. lam.
()6. Is it empty?F. No ,it's light.
()7. What day is it today?G. Certainly.
()8. Is that bag heavy?H. No. Li Lei isn't here. .
()9. Are we all here today?I. No ,thanks.
()10. Let me help you.J. Yes,I can.
she_______(宾格)
many ,minutes ,hour ,there ,how ,are ,in,an
____________________________________________
The boys like to listen to music when they do ______ (they) homework.
(1)把天平放在水平桌面上,将_____移到标尺的零刻度线处,调节平衡螺母,使天平平衡;
(2)先把两只完全相同的小烧杯分别放在天平左右两盘上,再把小石块放入左盘烧杯中;
(3)向量筒中倒入适量的水,液面如图2 所示,则量筒中水的体积为_____cm3;
(4)现将量筒中的水倒一部分至右盘小烧杯中,再利用滴灌来调节量筒与烧杯中水的体积,当天平再次平衡时量筒内剩余水的体积如图3 所示,则小石块的质量m石=_____g;
(5)用细线拴好小石块,慢慢放入量筒中直到完全浸没,液面的示数如图4 所示,则小石块的体积V 石=_____cm3,小石块的密度ρ 石=_____
kg/m3.
试题">小熙同学利用下列器材:天平(无砝码)、两只完全相同的小烧杯、量筒、水、滴管、细线完成了小石块密度的测量.水的密度为1.0 ×103kg/m3.操作步骤如下:
(1)把天平放在水平桌面上,将_____移到标尺的零刻度线处,调节平衡螺母,使天平平衡;
(2)先把两只完全相同的小烧杯分别放在天平左右两盘上,再把小石块放入左盘烧杯中;
(3)向量筒中倒入适量的水,液面如图2 所示,则量筒中水的体积为_____cm3;
(4)现将量筒中的水倒一部分至右盘小烧杯中,再利用滴灌来调节量筒与烧杯中水的体积,当天平再次平衡时量筒内剩余水的体积如图3 所示,则小石块的质量m石=_____g;
(5)用细线拴好小石块,慢慢放入量筒中直到完全浸没,液面的示数如图4 所示,则小石块的体积V 石=_____cm3,小石块的密度ρ 石=_____
kg/m3.
结合全文,说明文中“窗子”的含意