
用图片发现世界,用影像记录生活——欢迎关注“图片研究所”
一.前期准备
工欲善其事必先利其器,任何拍摄都是这样,我们要想拍出壮美的流星雨,自然也是需要做好准备工作,而且要更细致、更充足才行。
1.提前寻找多个拍摄点
不同的地点拍摄到的流星雨是不一样的,要想拍出壮观的流星雨照片,还是需要多找几个拍摄点,这样后期选择照片的时候,还能给自己一点余地。
2.找你能找到的最暗的地方
拍摄流星雨跟拍摄星空一样,环境中的光线一多就会对拍摄造成影响。最好是能到光污染少的乡下和郊区去拍摄,要记得带上手电筒便于黑暗中操作。

3.关于器材
相机:这个就不多说了,最好是全幅相机,残画幅也可以拍,但是就怕拍出来画质不行。
镜头:最好是高速广角镜头,焦段最少也应该是24mm,最好在20mm或以下,这样抓到大流星的机会大一些。最好使用定焦镜头,光圈选最大光圈缩小0.5-1挡,以便在不太损失像质的情况下用最大光圈。
三脚架和快门线:因为需要长时间曝光,所以三脚架和快门线都是必不可少的。用快门线或者相机的定时功能能够更好的防止相机抖动。另外,镜头最好能加上遮光罩,防止杂光的干扰。同时,遮光罩也可以防止镜头前凝结露水。
备用电池:因为要拍很久,所以备用电池是很需要的。
4.夏天注意蚊虫,冬天注意御寒
身体最重要!
二.具体参数
1.ISO
在低照明条件下,不同的相机长时间曝光拍摄的表现差异是很大的,因此我建议从ISO 800起开始调,相应地进行调整。这样会增加图像的噪点,但最好还是尝试一下,因为长时间曝光会产生彩色噪点。
2.对焦
无前景时:切换到手动对焦模式,将镜头对焦环放在无穷远处
有前景时:半按快门自动对焦,对在前景上,松开快门,切换到手动对焦模式,此时锁定了焦点,全过程要小心谨慎,不要误触镜头的对焦环。
3.曝光
将相机曝光模式切换到M,一般快门速度从30s起调,光圈f/5.6起调。
4.拍摄
设置好参数之后,相机调整到高速连拍模式,按下快门线并锁定快门,然后你就可以睡觉去了??
5.Star Trails
如果拍到的流星不够多,没关系,我们有神奇的软件Star Trails,可以利用这款星轨合成软件来合成你拍摄到的所有照片。

三.注意事项
1、因为夜晚天色黑暗,自动对焦是没有用的,我们应该采用手动对焦至镜头无限远。把相机安装在三脚架上,对准要拍摄的区域,焦距设定为无穷远,快门设为B门或T门,用快门线锁定就可以开始拍摄流星了。拍摄场地要足够开阔,以使你的相机可以在没有任何物体遮挡的情况下,随时指向最有利的区域。
2、可以用超广角镜头,或多部相机同时进行大范围的巡天摄影。这样可以增加流星被拍摄到的机会,不会漏掉出现的流星。一般来说,任何区域都有可能出现流星,拍到它们要靠运气。
3、流星雨出现是有规律可循的,因此确实存在比较容易出现亮流星的天区。一般来说,在与地平线高度30-70度角的天区内最容易看到明亮流星。另外,在距流星雨辐射点30-40度远的天区也是出现流星比较密集的地方。我们在实际拍摄中应该综合考虑以上情况,来安排相机取景。
4、要想获得一张优秀的流行作品,前景的选择也很重要。如果选择一些树景、山水景色、古迹,或者是天文台圆顶、射电天线阵等作为地景,加上巧妙的构图,拍摄的流星照片一定会十分美丽。关于曝光的话,对于有科学价值的固定流星摄影来说,5到15分钟的曝光量是比较合适的。然而,如果你想进行创意,拍摄流星的艺术照,那就没有固定的规则了,综合考虑环境、天空因素的影响。
5、想要拍摄流星余迹的话,采用固定摄影就可以了。一旦发现流星过后出现明亮余迹,就马上将相机对准它,固定好三脚架,开始曝光,具体方法与前面介绍的相同,只是每次曝光时间不宜太长,控制在1到5分钟就可以了。

PSP3.71可以玩的游戏有哪些?
这.....3.71可以玩的..很多啊....不可以玩的也很多啊
你以为psp游戏有多少?
我想最少1000~2000,多至10000吧....你要把所有的都举出来?
而且并不是最新的3.71都不能玩,只是有些特定的要求高的游戏才不能玩..
要全部说出来太那啥了....
a176352也只说出了其中的极小一部分..
PSP上有哪些值得玩的冷门游戏
冷门游戏好像在国内也没多少吧,基本都汉化了尤其是PSP中的Gal
我推荐你玩美版的
可以玩YS VI and VII,Trails in the Sky FC and SC, Corpse Party ,Soul Trigger
Dragon 7th Ore no Dungeon Black Rock Shooter Grand Theft Auto Phatasy Star
Tales of Denisty Tales of Phatasia Harvest Moon
扑克牌随机问题
dress clothing: 1, said the \blended serge accessories: a cap badge,Bridesmaid dresses dress pants, collar (already introduced), dress badges, armbbridesmaid dressess, etc. flag cap badge: Army, Li Chang, officers and men of General Motors, August 1 emblem loose outer leaves and yellow Tiananmen Squevening dresses, as a whole was Peach (tip up), width 50 mm,4, 55 mm high. one that navy bridesmaid dresses air force evening dresses strongly urged \red cloth during the five-star-style aluminum cap badge and on June 5 red star cap badge with the same point. cravat: army, Li Chang, general officers and men, golden yellow five-pointed star, and pine branches (obtuse angle), style, and now bridesmaid dresses market Many of bridesmaid dresses art troupe leaders took similar, this will be red collar, 5 June collar after the third unity. Another said, dress cravat into military collar (see above), Backstage cravat, military band collar flower, guard of honor cravat, uniforms to receive flowers sub- Headquarters, Army, Navy, Air Force (Air Force is also equipped with land bridesmaid dresses sea), the Second Artillery 5 .07-market years, and certainly (at least in the dress) is the leading generic spend. One said that the Navy,Bridesmaid dresses short-sleeved Xia Fu, the Air Force is for their own led efevening dressests to spend. officer rank insignia: style, material, process, specifications and current officers insignia the same, dress embroidered badges except outside bottom edge of the golden edges (general officer to compile flower pattern), dressed in uniforms or insignia no edging (1 GM said Li Chang, were dressed in unievening dressesms or badges style), floor color subsoiling Army Green, Navy deep navy, air force deep blue, golden yellow and decorated generals generals star emblem and pine branches (some say a metal wire embroidery), lieutenant-colonel of two gold embroidered floor central vertical bar (to bridesmaid dresses bottom buttonhole badges) XiaoWei decorated silver star emblem, lieutenants two gold embroidered floor central vertical bar (to the bottom buttonhole badges) XiaoWei decorated silver star emblem. Another said ground officer with the rank of naval armbands (Xiangjian below) dress flag armbands: rectangular (some say the flag waving type, similar to the style of the Russian flag shoulder patches), wear on the left arm above the headquarters of the Second Artillery officers wearing People's Liberation Army flag (August 1 star, all-red background), army officer to wear the Army flag (August 1 star, a red background under the green), naval officer, wearing navy flag (August 1 star, under the blue background on the red white bars) Air Force Air evening dressesce flag officers wear (August 1 star, under the blue background on the red).
谁能帮帮我!!!!!!!!!!!!!!!
初二英语试卷
I. 听对话,回答问题。
A) 听下面一段对话,回答第1和第2两个问题。
1. When will the film start?
A. At six . B. At half past six. C. At half past seven.
2. Where are they going to meet?
A. At the school gate. B. In front of Wei Fang’s home.
C. At the cinema gate.
B) 听下面一段对话,回答第3至第5三个问题。
3. The man isn’t a doctor, is he?
A. Yes, he isn’t. B. No, he isn’t. C. Yes, he is.
4. What’s wrong with the woman?
A. She has got a headache. B. She can’t do exercise. C. She can’t sleep well.
5. What must she do then?
A. Take some medicine. B. Drink enough water. C. Go to bed earlier.
II. 听短文,回答问题。
6. What did Mr White see in the street?
A. A boy and a dog. B. A boy and a duck. C. A boy and some money.
7. What did the boy give the animal?
A. Some bread. B. Some money. C. Nothing but a kick.
8. How did Mr White feel?
A. Sad. B. Angry. C. Happy.
9. What did Mr White give the boy?
A. Some bread. B. Some money. C. A lesson.
10. What do you think of the boy?
A. He is clever. B. He is lovely. C. He is too bad.
І、单项填空 15%
1. She hurt herself, ______ she ?
A. doesn't B. didn't C. don't D. wasn't
2. We'll go for a spring outing if it _______ rain next week.
A. won't B. isn't going to C. doesn't D. isn't
3. "Help ________ to some fish, Lucy and Lily." said Mr. Brown.
A. yourself B. yourselves C. your D. you
4. He always shows his white ________ when he laughs.
A. tooth B. teeth C. tooths D. teeths
5. The little girl is ________ young to look after herself.
A. too B. so C. very D. quite
6. _________ these words, he left the classroom quickly.
A. At B. In C. To D. With
7. --- _________ I return the book to the library today? --- No, you _________.
A. Must, mustn't B. Must, needn't
C. Need, mustn't D. May, needn't
8. --- She is 15. Is she _________ to drive? ---I'm afraid not.
A. old enough B. enough old C. young enough D. enough young
9. You can ________ see any bikes in Chongqing, because most of the roads are
slopes in this city of mountain.
A. hardly B. almost C. nearly D. never
10. --- What did you do yesterday evening ?
--- I went to see the movie Love Train. I really ________ myself in it.
It's wonderful.
A. taught B. helped C. lost D. threw
11. There is ___ on today's newspaper about the war on Iraq. You'd better not miss it.
A. something important B. nothing important
C. anything important D. everything important
12. --- Jim and I will go to visit an island this weekend. ---___________ .
A. So will I B. So do I C. So I will D. So I do.
13. --- Time is money. --- But I think time is _________ money.
A. more important than B. not important as
C. so important as D. the most important
14. I don't _________ like going out tonight. Because I have caught a cold.
A. look B. feel C. think D. want
15. The baby is _________ old.
A. five-months B. five month C. five months D. five month's
II. 完型填空 15%
When most people think of Helen Keller, they can't help but think of Anne Sullivan. Helen, the star pupil, and Anne, the model teacher, go together like a __1__ and glove. __2__ of these women were truly remarkable.
Helen Keller was left deaf and blind from an illness when she was a __3__. Anne Sullivan, __4__ blind herself, taught Helen to __5__ Braille, a system of raised dots
designed for the __6__. She also taught her to "__7__" with her fingers. __8__ these
tools to overcome her handicaps, Helen developed her keen __9__. She received
many honors for her __10__ and other works.
When Anne Sullivan was near death, __11__ said to her, "Teacher, you must get
__12__. Without you, Helen would be __13__." Anne replied, "That would __14__ that I have failed." Do you __15__?
1. A. foot B. hand C. finger D. leg
2. A. All B. None C. Some D. Both
3. A. baby B. school girl C. college student D. teacher
4. A. hardly B. nearly C. never D. sometimes
5. A. see B. look C. watch D. read
6. A. deaf B. blind C. dumb D. foolish
7. A. talk B. listen C. walk D. look
8. A. Making B. Telling C. Using D. Thinking
9. A. body B. mind C. language D. feeling
10. A. houses B. questions C. books D. habits
11. A. anyone B. no one C. someone D. everyone
12. A. well B. bad C. angry D. tired
13. A. something B. nothing C. everything D. anything
14. A. speak B. mean C. say D. talk
15. A. think B. know C. understand D. agree
III. 阅读理解30%
A
Mrs. Baker lived in a small town. Her husband worked in a factory several years ago. He was able and could do everything. But the boss was bad to the workers and he was paid less. Sometimes his family was hungry. He had to leave there and went to Sydney. The factories needed the workers like him and he easily found work there. He worked hard and got much money. He went to England for his holiday once a year. He missed (想念) his wife and children very much. So one day he called Mrs. Baker. On the telephone he told her to go to travel in Australia. Of course they were all happy.
It’s very far from England to Sydney. Mrs. Baker and her children had to take a plane. They left their country for the first time and they were traveling in a plane for the first time, too. They were all excited. The two children did not feel tired though they couldn’t fall asleep the night before. They played between the seats after the plane had taken off. Their mother stopped them, but they didn’t listen to her. One of them hardly hit an airhostess with some plates in her hands. Mrs. Baker became a bit unhappy and said, “Don’t run wild here! Go and play outside!”
1. Sometimes the Bakers were hungry because ______.
A. the boss was bad B. the boss paid him less
C. the family was big D. they were very lazy
2. As ______, Mr. Baker easily found work in Sydney.
A. he was born in England B. Australia is a big country
C. he was very able D. he had worked in a factory
3. ______, so the two children couldn’t fall asleep the night before.
A. They would play in the plane B. Their mother would work in Sydney
C. They would take a plane for the first time D. They would study in Australia
4. The meaning of the phrase “take off” in the story is _______.
A. 拿掉 B. 起飞 C. 脱去 D. 免除
5. Which of the following is true?
A. Mrs Baker forgot they were in a plane B. Mrs Baker didn’t love her children
C. The two children made the hostess angry D. Mrs Baker was afraid to take a plane
B
Today, Travis White is a singer, but his first job was very different. When he was 14, he started selling newspapers after school. He went to people's houses and knocked on their doors. Some people got angry with him. One day, a man shouted, "I don't want a newspaper!" and slammed the door. Travis went back to visit the man and tried again. Finally, the man agreed to start buying the newspaper. Travis soon became the top salesman. But when he was 18, he decided to become a singer. Travis says his selling experience was very useful for his new career. It taught him how to work with different kinds of people. It also taught him he should never stop trying.
1. When Travis White was 14 years old, he was a _______.
A. singer B. student C. bookseller D. writer
2. What is the main idea of this reading?
A. Newspapers are important in daily life.
B. Travis White learned a lot from his first job.
C. Young people should have jobs after school.
D. Travis White is a great singer.
3. The expression 'slammed the door' in the reading means:
A. opened the door quickly. B. closed the door hard.
C. broke down the door. D. went through the door.
4. How long did Travis White sell newspaper subscriptions?
A. one day B. four years C. 14 years D. 18 years
5. "It also taught him he should never stop trying." What does "it" mean?
A. the newspaper B. his new career
C. his selling experience D. the top salesman
C
Some people have sailed the world in quite small boats. It is not an easy thing to do. Sometimes the weather gets bad. That can be the end of everyone in it. Accidents can happen easily and quickly.
One family had an accident with some big fish. The fish swam under their boat and bit holes in it. Sea water came in, of course, and the boat soon went down. However, these people had another small boat ------ a lifeboat and they all got into that. They lived and hoped for many days. They ate and slept, and they always hoped. … At last a ship found them.
How do people live in a very small lifeboat? Perhaps for weeks or months ? They must be strong in every way. They must have hope -------they must want to live. But you cannot eat and drink hope.
You cannot drink sea water. Drink a lot of sea water and you will quickly die. Sailors can drink rain water. They must catch rain water in their boat. They must also catch fish and birds for food. Lifeboats do not often carry a cooker, so the sailors cannot cook their food. Raw fish and bird meat is not very nice, but there is no other choice in a lifeboat! The sailors must eat raw food, or they will die.
What do people think about in a life boat? They think about land, a warm bed, dry clothes, fresh water and food, food, food.
1. When sailor’s boat goes down, their lifeboat gives them______.
A. food B. beds C. rain water D. hope
2. One family once had an accident at sea, because _______.
A. their boat was caught in bad weather
B. some fish bit through the bottom of their boat
C. the boat knocked against a rock and sea water came in
D. none of them knew how to sail the sea
3. Sailors can catch ______ for food and drink at sea in a lifeboat.
A. rain water B. fish and birds
C. sea water and rain water D. both A and B
4. Lifeboats do not often carry a cooker, which is ________.
A. something used for cooking B. food for cooking
C. a large basket D. a person who cooks food
5. Which of the following is not true?
A. Sailing around the world in quite small boat is not easy.
B. All the food sailors have in a lifeboat is cooked fish and bird meat.
C. Anyone who drinks a lot of sea water will die.
D. No one can live for weeks in a lifeboat if he is not strong and doesn’t want to live.
IV. 词语填空 15%
Did you know that many roads had been well traveled before they became
modern __1__? It's __2__! Highways are built __3__ it is easiest to
travel----- over flat ground, __4__ mountains, across shallow waterways.
The first travelers to discover these routes were __5__. Herds of
buffalo in the West __6__the plains where it was easiest. Deer in the eastern
mountains used the trails that were the __7__ difficult.
__8__ came the North American Indians. They knew that the animals were
wise __9__, so they followed the __10__ routes. The early pioneers __11__ the same.
The builders of __12__ highways __13__ found these paths to be the best.
The next time you __14__ down a beautiful highway, think of the __15__ travelers
that went before.
V. 短文改错 10%
Good afternoon, classes. I have something 1._________
to tell you. Today we will do some cleans 2._________
after the school. The radio says it will 3._________
be windy at eight, so please not forget to 4._________
close the doors and windows. The temperature 5._________
will fall to below zero tomorrow morning. 6._________
Please remember to put more clothes. By the 7.__________
way, there are some homework for you this 8.__________
evening. You must finish do it and bring it 9.__________
for school tomorrow. That’s all. Thank you. 10._________
VI. 书面表达 15%
每年都有不少人在交通事故中伤亡。请你用英语写一篇题为
“Road Safety”的文章,以提醒公众遵守以下交通规则。
1. 骑自行车时靠右行。
2. 遇到红灯时不横穿马路或向右拐。
3. 过马路要一停二看(两边)三通过。
初二英语答卷
Ⅰ.听对话回答问题:10%
1. __________2. __________3. __________4. __________5. __________
Ⅱ、听短文,回答问题。10%
6. __________7. __________8. __________9. __________10. __________
Ⅰ. 选择填空15%
1. __________2. __________3. __________4. __________5. __________
6. __________7. __________8. __________9. __________10. __________
11. ________12. _________13. _________14. _________ 15. __________
II. 完型填空15%
1. __________2. __________3. __________4. __________5. __________
6. __________7. __________8. __________9. __________10. __________
11. ________12. _________13. _________14. _________ 15. __________
III. 阅读理解:30%
A. 1. __________2. __________3. __________4. __________5. __________
B. 1. __________2. __________3. __________4. __________5. __________
C. 1. __________2. __________3. __________4. __________5. __________
IV. 词语填空:15%
1. __________2. __________3. __________4. __________5. __________
6. __________7. __________8. __________9. __________10. __________
11. ________12. _________13. _________14. _________ 15. __________
V. 短文改错 10%
请对下面所给短文的每一行作出判断,如该行多一个词,把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉;如该行缺一个词,在空缺处加一个漏词符号(^ ),在该行右边横线上写出该加的词;如该行错一个词,在错的词下划一横线,在该行右边横线上写出改正后的词;如该行没有错,就不要改,在右边横线上画一个勾(√ )。每行只有一个错误。
Good afternoon, classes. I have something 1._________
to tell you. Today we will do some cleans 2._________
after the school. The radio says it will 3._________
be windy at eight, so please not forget to 4._________
close the doors and windows. The temperature 5._________
will fall to below zero tomorrow morning. 6._________
Please remember to put more clothes. By the 7.__________
way, there are some homework for you this 8.__________
evening. You must finish do it and bring it 9.__________
for school tomorrow. That’s all. Thank you. 10._________
VI. 书面表达 15%
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