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【題目】我國四大高原中,地形崎嶇,石灰?guī)r發(fā)布廣泛,大小不等的山間盆地和河谷平原錯落其中,這個高原是( )
A.黃土高原 B.云貴高原 C.青藏高原 D.內(nèi)蒙古高原
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【題目】在測量小燈泡電功率的實(shí)驗(yàn)中,因缺少電壓表,小軍利用兩個電流表和一個已知阻值為10Ω的電阻R0, 同樣測出了小燈泡的電功率,原理如圖所示.小軍讀出電流表A1的示數(shù)為0.5A,而電流表A2的示數(shù)為0.2A,則小燈泡L兩端的電壓為________ V,小燈泡的實(shí)際功率為________ W.
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【題目】讀等高線地形圖,完成下列要求
(1)寫出圖中字母代表的相應(yīng)地形部位的名稱:
C:;
D:;
E:。
(2)虛線A,F(xiàn)中,表示山脊的是。
(3)在等高線地形圖上,坡陡的地方,等高線(選填“密集”或“稀疏”);坡緩的地方,等高線(選填“密集”或“稀疏”)。
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【題目】“我住江之頭,君住江之尾…山山皆向北,條條南流水”,描述的地理特征是( )
A. 九曲回腸,林海雪原 B. 大江東去,千溝萬壑
C. 水流平緩,一望無際 D. 山河相間,縱列分布
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【題目】西亞石油運(yùn)往西歐和美國,最短路線必經(jīng)
A. 馬六甲海峽 B. 非洲好望角 C. 巴拿馬運(yùn)河 D. 蘇伊士運(yùn)河
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【題目】讀下圖,回答下列問題。
(1)甲、乙兩圖中,表示北半球的是圖。
(2)緯線圈的長度隨緯度的升高而。
(3)在北極上空看,地球呈(填“順”或“逆”)時針方向自轉(zhuǎn)。
(4)圖中A點(diǎn)位于B點(diǎn)的方向。
(5)圖中A,B,C,D四點(diǎn)自南向北排列依次為。
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【題目】
What's the most important thing for you to have in your life? Somebody mentions hard work; others suggest knowledge, love and luck.
If you arrange(排列)the 26 English letters in order and use numbers to represent each of them, for example, 1 for a, 2 for b, 3 for c. . . 26 for z, you can change an English word into a number. So hard work becomes 8+1+18+4+23+15+18+11=98,meaning 98 is its mark; knowledge: 11+14+15+23+12+5+4+7+5=96;love:12+15+22+5=54, and luck: 12+21+3+11=47,a small mark. None of these words can give one a full mark. What about money? It can't, either.
Then what else? Don't be worried. You can always find an answer to a problem in your life, when you change your way of looking at things or doing things, or your attitude. Yes, attitude is the word. See for yourself : attitude:1+20+20+9+20+21+4+5=100,a full mark.
Different attitudes lead to different courses of life. Most time people hope for a better life. It is possible that they will have a better life if they change their attitudes. When you change your manner and became friendly toward others, you'll meet more smiling faces toward you. In the same way, if you take a positive attitude toward failure, you'll find it's also rewarding(有益的)though it has caused you losses(損失).
【1】The writer thinks is the most important thing in a person's life.
A. hard workB. knowledge
C. moneyD. attitude
【2】What is the mark of the word. "money" according to the passage?
A. 73.B. 72.C. 75.D. 62.
【3】From the passage we can learn that .
A. different attitudes come from different courses of life
B. sometimes failure can bring you good if you take a positive attitude
C. math can solve every problem easily in our daily life
D. none of the English words except "attitude" is 100 or more
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【題目】
The rockets take astronauts and man-made satellites into space. The satellites are used for communication, weather monitoring and research. But how do satellites stay up without Falling down?
There are two opposite forces acting on the satellite. One of them is the force of gravitation(地心引力), which tries to pull the satellite toward the earth. The other force is created by the rotation (旋轉(zhuǎn))of the satellite around the earth. This force tries to take the satellite away from the earth. With these two forces, the satellite goes round and round. The gravitational pull of the earth is like a rope which keeps the satellite from flying away.
Everything that goes up has to come down. It is only a matter of time before a satellite comes back to the earth. As time goes by, the satellite loses its speed, which makes the gravitational pull stronger than the force pulling it away. This makes the satellite crash (墜落)down to the earth.
【1】The force that pulls the satellite towards the earth is created by ________.
A. the earthB. the satellite itself
C. the rotation of the satelliteD. the rope
【2】Why can't the satellites fly away?
A. Because of the force from the earth.
B. Because the satellite is too big.
C. Because of the force created by the rotation of the satellite around the earth.
D. Because people on earth have made ropes to tie the satellites tightly.
【3】Which of the following is TRUE according to the passage?
A. There are four forces acting on the satellite.
B. The force of gravitation makes the satellite go round and round.
C. As time goes by, the satellite will finally fall down.
D. The satellite will stay in space forever.
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