【小升初英语】
1、【阅读理解】This is my room. You can see a desk in my room. The ball is on the desk. There is a bag and a doll on the floor (地板). Here is my new kite. Oh, its in the box. My room is not clean. Let me clean it.
小题1.There is a ____ in my room.
A.bike
B.chair
C.desk
小题2.There is a ____ on the desk.
A.kite
B.ball
C.bag
答案：C B
解析：1. 根据“This is my room. You can see a desk in my room.”可知我的房间有一张桌子，故选C。
2. 根据“The ball is on the desk.”可知桌子上有一个球，故选B。
【中考英语】
2、【补全对话】
1. __{1}__ What will the future be like?
2. __{2}__ How much are these socks?
3. __{3}__ Could I go out for dinner today?
4. __{4}__ The Great Wall is really fantastic.
5. __{5}__ Is your sister as friendly as you, Ann?
A.Fifteen dollars.
B.She has big eyes.
C.That should be OK.
D.Yes, shes very nice.
E.I do agree. Ive been there.
F.There will be world peace.
答案：(1) F(2) A(3) C(4) E(5) D
解析：
1. What will the future be like?（将来是什么样）结合选项可知 There will be world peace.（将是世界和平）符合情境。故选F。
2. How much are these socks?（这些袜子多少钱）结合选项可知 Fifteen dollars.（15美元）符合情境。故选A。
3. Could I go out for dinner today?（今天我能出去吃晚饭吗）结合选项可知 That should be OK.（那应该很好）符合情境。故选C。
4. The Great Wall is really fantastic.（长城真得很迷人）结合选项可知 I do agree. Ive been there.（我同意，我已经去过那里了）符合情境。故选E。
5. Is your sister as friendly as you, Ann?（Ann，你的妹妹和你一样友好吗）结合选项可知 Yes, shes very nice.（是的，她是非常好的）符合情境。故选D。
【高考化学】
3、【单选题】在一定温度下，10mL 0.40mol/L H2O2溶液发生催化分解，不同时刻测得生成O2的体积（已折算为标准状况）如下表
下列叙述不正确的是（溶液体积变化忽略不计）( )
A.0～6min的平均反应速率：v(H2O2)≈3.3×10﹣2mol/(Lmin)
B.6～10min的平均反应速率：v(H2O2)<3.3×10﹣2mol/(Lmin)
C.反应到6min时，H2O2分解了50%
D.反应到6min时，c(H2O2)=0.30mol/L
答案： D
解析：
A项，0~6min的n(O2)=1×10-3mol；则
，故A正确；
B项，6~10min的平均反应速率：
，故B正确；
C项，反应到6min时，由于H2O2分解的物质的量占总的一半，所以分解了50%，故C正确；
D项，反应到6min时，消耗
，所以c(H2O2)=0.20mol/L，故D错误；
故答案为：D
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