【題目】如圖所示，我們可以探究平行板電容器的電容與哪些因素有關。平行板電容器已充電，帶電量為Q，靜電計的指針偏角大小，表示兩極板間電勢差的大小。如果使極板間的正對面積變小，發(fā)現(xiàn)靜電計指針的偏角變大，我們就說平行板電容器的電容________（填“變大”或“變小”）；如果使兩極板間的距離變大，發(fā)現(xiàn)靜電計指針的偏角變大，我們就說平行板電容器的電容________（填“變大”或“變小”）。我們之所以能夠得出這些結(jié)論是因為電容器的電容C=________。
名師點睛字詞句段篇系列答案科目：高中地理 來源： 題型：
【題目】設復數(shù)z＝2m＋（4－m2）i，當實數(shù)m取何值時，復數(shù)z對應的點：
（1）位于虛軸上？
（2）位于一、三象限？
（3）位于以原點為圓心，以4為半徑的圓上？
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【題目】 短文改錯
假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。
增加：在缺詞處加一個漏字符號(/\)，并在其下面寫出該加的詞；
刪除：把多余的詞用斜線(\)劃掉；
修改：在錯詞下畫一橫線，并在該詞下面寫出修改后的詞。
注意：1. 每處錯誤及其修改均僅限一詞；
2. 只允許修改10處，多者(從第11處起)不計分。
Two years before, I traveled to Brazil and I rented for a car. Unfortunate, I had an accident and hit another car, and I needed to stay in a hospital for at least two week. I called my parents, so I did not tell them what had happened. I knew that they will be worried about myself because I was so farther away, and that my mother would not sleep if she knew. Therefore, I told them interested stories and how I was enjoying Brazil. As a result, nobody knew truth. I still think that it was the right thing to do.
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【題目】 短文改錯
假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。
增加：在缺詞處加一個漏字符號(∧)，并在其下面寫出該加的詞。
刪除：把多余的詞用斜線(＼)劃掉。
修改：在錯的詞下畫一橫線，并在該詞下面寫出修改后的詞。
注意：
1. 每處錯誤及其修改均僅限一詞；
2. 只允許修改10處，多者(從第11處起)不計分。
Which is known to all, nowadays the Internet is playing more and more important part in our daily life. In it, we can not only read news at home and abroad but also get so much information as possible. We are often send e-mails to our classmates. We can make telephone call to our families as well as our friends. However, we can go to school on the net, read different kinds of books and even teach myself English. We can also enjoy music, watching sports and play computer games on the Net. We could do shopping even without leaving our homes.
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【題目】短文改錯
假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。錯誤涉及一個單詞的增加、刪除或修改。
增加：在缺詞處加一個漏詞符號（∧），并在其下面寫出該加的詞。
刪除：把多余的詞用斜線（\）劃掉。
修改：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。
注意：
1. 每處錯誤及其修改均僅限一詞；
2. 只允許修改10處，多者（從第11處起）不計分。
The summer holiday is coming. Our class has a discussion about what to do during the holiday.
Some are in favor of staying at home. They think it’s both convenience and comfortable. What’s more, they can to save money for other purposes. But they will lose chance of getting to know the outside world. Besides, others prefer to go out for traveling, that can increase their knowledge and broaden their horizons. But they will spend more money or meet some difficulties while traveling.
In my opinion, it would be much good to stay at home, for I can do how I like, such as reading books, watching TV, and help my parents with the housework.
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【題目】2016年9月11日，山東青島市即墨于21時25分發(fā)布雷電黃色預警信號。當晚受雷陣雨影響，空氣潮濕。距地面一定高度的空中有兩塊相距3 km的足夠大的云團，兩塊云團正在以5 m/s的相對速度靠近，不斷與空氣摩擦帶電。設兩云團之間電勢差保持3×109 V不變，已知發(fā)生放電時的電場強度為3×106 V/m，云團間的電場可視為勻強電場，則大約經(jīng)過________秒，將會發(fā)生放電現(xiàn)象；在這次放電中，若從一塊云團移到另一塊云團的電荷量為500 C，閃電歷時0.01 s，則此過程中的平均電流為________安培。
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【題目】如圖所示是電飯煲的電路圖，S1是一個控溫開關，手動閉合后，當此開關溫度達到居里點（103 ℃）時，會自動斷開。S2是一個自動控溫開關，當溫度低于60 ℃時會自動閉合；溫度高于80 ℃時，會自動斷開。紅燈是加熱時的指示燈，黃燈是保溫時的指示燈。分流電阻R1＝R2＝500 Ω，加熱電阻絲R3＝50 Ω，兩燈電阻不計。
（1）根據(jù)電路分析，敘述電飯煲煮飯的全過程（包括加熱和保溫的過程）。
（2）簡要回答，如果不閉合開關S1，電飯煲能將飯煮熟嗎？
（3）計算加熱和保溫兩種狀態(tài)下，電飯煲的消耗功率之比。
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【題目】B
Katharine Graham, once described as ＂the most powerful woman in America＂, was the owner and publisher of The Washington Post newspaper. Under her leadership, it became one of the most important newspapers in the country.
Katharine Graham was born in New York in 1917. Graduating from the University of Chicago in 1938, Katherine got a job as a reporter for a newspaper in San Francisco, California. In 1933, Katharine’s father bought a failing newspaper, The Washington Post. It was the least successful of five newspapers in Washington.
Soon Katharine returned to Washington and got a job editing letters to the editor of her father’s newspaper. In 1946, her husband Philip Graham became publisher of The Washington Post. When she was 46, her husband died, leaving Katharine Graham four children to raise and a newspaper to operate.
At first, she was concerned only with finding a way to keep control of The Washington Post until her sons were old enough to lead it. She had no training in business or experience in operating a large company and decided to learn. She hired excellent reporters and editors. In 1969, Missus Graham became publisher as well as president of The Washington Post company. In the 1970s, The Washington Post became famous around the world. Katharine Graham also played an important role in supporting women by employing more of them. When she was eighty years old, Katharine Graham wrote a very popular book called Personal History about her life, which won a Pulitzer prize for biography in 1998. Friends of Katharine Graham said she used her intelligence and bravery to improve the American media.
【1】 Katharine Graham first worked as ___________.
A. a reporter B. an editor
C. a publisher D. a manager
【2】 When Katharine’s father bought The Washington Post, __________.
A. it had been in business for a short time
B. it was one of the largest newspapers in the US
C. it was in a difficult situation
D. it had enjoyed great success and fame
【3】The most difficult time for Katharine came when __________.
A. her father died
B. her husband died
C. she took control of The Washington Post
D. she returned home to raise her four kids
【4】What can we infer from the passage?
A. The newspaper was failing under Katharine’s control.
B. There were more women editors than men editors in The Washington Post.
C. Katharine probably had a difficult time operating the newspaper at first.
D. Katharine was best known for her book Personal History.
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【題目】兩物塊A、B用輕彈簧相連，質(zhì)量均為2 kg，初始時彈簧處于原長，A、B兩物塊都以v＝6 m/s的速度在光滑的水平地面上運動，質(zhì)量4 kg的物塊C靜止在前方，如圖所示．B與C碰撞后二者會粘在一起運動．則在以后的運動中：
（1）當彈簧的彈性勢能最大時，物塊A的速度為多大？
（2）系統(tǒng)中彈性勢能的最大值是多少？
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