#
8A Unit3 巩固练习一词汇运用:(25分) A)根据首字母填空. 1. Tom always gets up early so I w why he is late for school today. 2. The Eiffel Tower is made of m___ ___. 3. The c___ ___ of the meeting is about 1
4 巩固练习单词拼写(15分)1 “Sorry, sir Please show me your driving p____________,” the policeman said politely 2 You need _________________( 耐心) if you want to get served in this shop 3 It was not our ________
【巩固练习】I 写出下列形容词与副词的比较级及最高级形式。 1 long __________________ 2 wide __________________3 fat __________________ 4 heavy__________________ 5 far __________________ 6 interesting __________________ 7 wet___
巩固练习1、下列气体中不能用固体氢氧化钠干燥的是( )A、氢气B、氧气C、二氧化碳D、一氧化碳2、将N2 、CO、HCl 三种混合气体依次通过NaOH 溶液、浓硫酸、灼热的CuO,假设每次处理均能完全反应(或吸收)。则最后排出的气体是()A.N2 、CO B.H2O (气)、N2C.N2 、CO2 D.HCI、 CO3、为提纯下列物质,所选用的除杂试剂正确的是()序号物质(括号内为杂质)除杂试剂
晋江市侨声中学 巩固练习1(2016全国2卷11) MgAgCl电池是一种以海水为电解质溶液的水激活电池。下列叙述错误的是A.负极反应式为Mg2e-=Mg2+ B.正极反应式为Ag++e-=AgC.电池放电时Cl一由正极向负极迁移 D.负极会发生副反应 Mg+2H2O=Mg(OH)2+H2↑2 (2013江苏·9)Mg-H2O2电池可用于驱动无人驾驶的潜航器。该电池以海水为电解质溶液,示意图如下。
Review of Units 1-2巩固练习责编:郭素清I 单项选择。(每小题1分,共15分)1? ____?are?you?? I’m?twelve??A?How???B?How?old???C?What???D?Who?2 Is?that__________ orange???? Yes,?it?is??????A?a????????????B?an????????????C?the?
#
【巩固练习】(含解析)1.已知在25℃、10×105 Pa条件下,2 mol 氢气燃烧生成水蒸气放出484 kJ热量,下列热化学方程式正确的是( )A.2H2(g)+O2(g)===2H2O(l) ΔH=-484 kJ/molB.H2O(g)===H2(g)+1/2O2(g) ΔH=+242 kJ/molC.H2(g)+1/2O2(g)===H2O(g) ΔH=+242 kJ/molD.2H2
专项语法讲练过去进行时及when和while引导的时间状语从句责编:刘燕【巩固练习】一、用所给动词的适当形式填空。1 I ___________ (do) my homework when Mike _______e) last night2 She ____________(clean) the room when I ______(go) to see her3 They ____
违法有害信息,请在下方选择原因提交举报