32.--Do you know how to pronounce this word?
--Yes. I _ _ in the dictionary yesterday.
A. looked it up B. worked it out C. gave it away D. picked it up
31.--Why are you unhappy, Ben?
--I was late for class again. I’m afraid Miss Li will be me.
A. friendly to B. angry with C. busy with D. proud of
30.--What do you think of the sweater?
--lt’s too , and I don’t have enough money to buy it.
A. nice B. lovely C. popular D. expensive
29.--How will she deal with the work?
--She doesn’t want to do it by herself. She wants to ask someone else to do it, .
A. yet B. instead C. too D. either
28.--We’re all here Lily. Where’s she?
--She’s gone to the library.
A. beside B. besides C. except D. of
27.--William,please remember to _ _ the photo taken in Canada here when you come to school tomorrow. I’d like to have a look.
--OK.I’ll introduce something about it to you myself.
A. take B. pass C. bring D. carry
从各小题A、B、C、D四个选项中,选出一个可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
26. --What’s your job, Henry?
--I’m a . I work late. I’m very busy when people go out to dinners.
A. waiter B. reporter C. teacher D. nurse
41.(6分)有一种XX一88型号电水壶的铭牌如下表,图l5是电水壶的电路图,R为加热器,温控器S是一个双金属片温控开关,当温度较低时,其处于闭合状态,加热器加热。当水沸腾后,会自动断开进入保温状态,从而实现了自动温度开关控制。
若加热器电阻阻值随温度改变而发生的变化可忽略不计,则:
(1)电水壶正常工作时,其加热电阻的阻值是多大?
(2)若电水壶产生的热量全部被水吸收,现将一满壶23℃的水在标准大气压下烧开需要多长时间?[水的比热容C=4.2×103J/(kg·℃),lL=10-3m3]。
(3)当电水壶处于保温状态时,通过加热器的电流是0.2A,此时电阻Rc的电功率是多少?
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