A．第一次模擬考試題－物理.files/image006.gif)
kW B。第一次模擬考試題－物理.files/image008.gif)
kW C。第一次模擬考試題－物理.files/image010.gif)
kW D。第一次模擬考試題－物理.files/image012.gif)
kW
3、“西電東進(jìn)”工程為了減小輸電損耗必須提高輸電電壓，從西部某電站向華東某地區(qū)輸送的電功率為第一次模擬考試題－物理.files/image004.gif)
kW，輸電電壓為1000kV，輸電線電阻為100Ω。若改用超導(dǎo)材料作為輸電線，則可減小輸電損耗的功率為（ ）
2、一只蜜蜂和一輛汽車站在平直公路上以同樣大小的速度并列運(yùn)動，如果這只蜜蜂緊盯著汽車車輪邊緣上的某一點(diǎn)（如粘著的一塊口香糖），那么它看到的這一點(diǎn)的運(yùn)動軌跡是（ ）
1、人類在探索自然規(guī)律的僅程中總結(jié)了許多科學(xué)方法，比如控制變量法、比值定義法、極限法等。在下列研究中，可以用極限法進(jìn)行研究的是（ ）
A．利用速度―時間圖象研究勻變速直線運(yùn)動的位移
B．研究瞬時速度
C．研究胡克定律
D．研究重力做功與路徑有無關(guān)系
第一次模擬考試題－英語.files/image004.gif)
because
for
weather. And there’s another reason nobody know about: I regarded myself as someone who
knew
couldn’t do anything lonely. I often felt less Capable（有能力的）than other. When I found a
alone others
company was advertising, I was even afraid to call to ask for detail. I wanted to make a
details
move, and I was always disappointed .What should I do? I’m looking forward to receive your
but receiving
Yours
Walter
第二節(jié) 書面表達(dá)（滿分25分）
As the College Entrance Examination is drawing near, the situation is getting worse and worse. From the picture, we can see that Li Ming is "studying hard". There are many books for him to read and many papers for him to do. How poor he is! At the same time, all his family are also busy working for him.
Nowadays, many parents expect too much of their sons or daughters. They hope that their sons or daughters study hard in order to be admitted to an ideal college or a key university. It is for this reason that parents are strict with their children. However, they don’t realize that they have become a heavy burden or a great pressure.
So I hope parents provide a proper environment for their children. Only in this way will they try their best and succeed at last!
22、作文（60分）
800
海南僑中2008屆語文第一次模擬考試題
21. 概括這兩段文字的主要內(nèi)容。（不超過30個字）（4分）
20、仿照下面的句式，各造一個句子，表達(dá)你對“承諾”的理解。（4分）
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第一次模擬考試題－物理.files/image002.jpg)
第一次模擬考試題－英語.files/image005.gif)