游客
题文

Many people are aware of the beauty of a solar eclipse (日食), but are surprised to learn that lunar eclipses are often just as impressive. While total solar eclipse lasts only for a few minutes and can be seen only in a small area of a few kilometers, total lunar eclipse can last for several hours and can be seen over much of the planet. In fact, the beauty and stability of lunar eclipses make them a favorite of both amateur and professional photographers.
Lunar eclipses generally occur two or three times a year, and are possible only when the Moon is full. When we see the Moon, we are actually seeing sunlight reflected off the surface of the Moon When the Earth is positioned in between the Moon and the Sun, however, the Earth's shadow falls on the Moon, and a lunar eclipse occurs.
The type of lunar eclipse - total, partial, or penumbral (半影) - that occurs depends both on how much of the Moon passes through the Earth's shadow and through which part of the shadow it passes. A penumbral eclipse occurs when the Moon passes through the Earth's outer shadow. This type of eclipse is brief and frequently goes unobserved by all but astronomers. By contrast, total and partial eclipses occur when all or part, respectively, of the Moon passes through the umbra(本影) shadow of the Earth. These eclipses are quite easy to see and are widely observed.
Unlike solar eclipses, lunar eclipses are safe to watch. Solar radiation that occurs during an eclipse of the Sun can cause a form of burns of one's eyes known as eclipse blindness. In fact, the only way to safely view a solar eclipse is by using specially designed equipment. However, since the Moon's light is reflected sunlight, it is completely safe to watch a lunar eclipse without any special equipment, although a pair of binoculars can certainly help the viewer appreciate the beauty of this phenomenon
The underlined word "stability " most probably means_______.

A.strength B.position C.steadiness D.visibility

According to the passage, a partial lunar eclipse occurs________.

A.when the Moon passes between the Sun and the Earth
B.when all of the Moon passes through the Earth's umbra shadow
C.when only a part of the Moon passes through the Earth's outer shadow
D.when only a part of the Moon passes through the Earth's umbra shadow

The passage implies that penumbral eclipses are________.

A.longer-lasting than most solar eclipses
B.more common than partial or full lunar eclipse
C.the result of the shadow cast by the Moon onto the Earth
D.more difficult to observe than other types of lunar eclipse

According to the passage, it is safe to watch a lunar eclipse, unlike a solar eclipse, because ________.

A.moonlight is less strong than sunlight
B.a lunar eclipse is briefer than a solar eclipse
C.a lunar eclipse lasts much longer than a solar eclipse
D.special equipment can be employed to view a lunar eclipse
科目 英语   题型 阅读理解   难度 中等
登录免费查看答案和解析
相关试题

根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
—Hello. Can I speak to Wu Ming please?
—____1____
—Hello, Wu Ming. This is Wang Hong. Sorry to ring you so late in the
evening, but I‘ve only just got home.
—____2____ What‘s the news?
—I‘d like to ask you about some stamps. Do you still have the cock year stamp? You had it when I last saw you.
—I‘m afraid I don’t have it. I sold it last week.
—____3____
—I‘m sorry. I didn’t know you wanted it. ____4____
—Yes, please. Thank you. It‘s very kind of you.
—____5____
—Thank you very much.
—Bye-bye.

A.Do you like collecting stamps so much?
B.That‘s all right.
C.Sorry, Wu Ming is out.
D.Do you want me to find one for you?

E. Oh, what a pity!
F. Yes, speaking.
G. OK, I‘ll ring you if I have any news.

根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
—Excuse me, can you tell me where the nearest restaurant is?
—____1____
—Where is the nearest restaurant, please?
—Oh, the restaurant? The nearest one is the City Restaurant. ___2___
—I‘m ——er—— I’m afraid I don‘t quite ……you see, ____3____
—I see. Simply walk two blocks straight ahead, then turn left, and the City Restaurant is about 10 metres ahead. ____4____
—Can I take a bus?
—Of course you can. but ____5____ It‘s only a few minutes’ walk.
—Thank you very much.
—Not at all.

A.What did you say?
B.I‘m a total stranger here.
C.You can‘t miss it.
D.I beg your pardon?

E. It‘s just opposite the No. 5 Department Store.
F. I don‘t think it is necessary.
G. It‘s not very far.

根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
—Mary, we are going to have a party on New Year‘s Eve. I’m sure we‘ll have a good time. ____1____
—I‘d like to. ____2____
—In our classroom. We are going to decorate(装饰) it and turn it into a splendid ballroom.
—____3____ I shall be very glad to spend my first New Year in China with you.
—But we are going to ask everyone at the party to give a performance. ____4___
—I will. My voice is not very pleasant to the ear,though.
—I heard you sing once. ____5____ I‘m sure you’ll be the star of our New Year party.
—Oh,thank you.

A.Your voice was sweet and beautiful.
B.Where are you going to have it?
C.Would you like to join us?
D.Thank you for inviting me.

E. Oh, it is great.
F. Let‘s go to the ball together.
G. Do sing us some English songs,please.

根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Policeman:Now, Jimmy, did you get a good view(看清) of the accident?
Jimmy:Oh, yes. I was standing outside the bank building and I saw it quite clearly.
Policeman:Do you know what time it was?
Jimmy:Yes.___1___ It was 2:45 exactly.
Policeman:Good. ____2____
Jimmy:Well, quite slowly — about 10 miles an hour. It was coming up York Road. ____3____ But they were still red when he went over them.
Policeman:I see. ____4____ was it also driving slowly?
Jimmy:It was coming along Union Street about 30 miles per hour. It was a blue Toyota. ____5____
Policeman:Did you see what colour his traffic(交通) light was?
Jimmy:Yes, it changed to yellow just before he crossed it.

A.What about the car?
B.I checked my watch.
C.Didn‘t you see the car?
D.Now,how fast was the truck moving?

E. Was the car going beyond the speed limit?
F. I suppose the truck driver knew the lights were going to change.
G. The driver stopped his car when he saw the truck crossing the street.

根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
- Mary, do you want to see the pictures of my holiday in Italy?
- 1
- Ah, it was great I The food was great \ The wine was great! But the traffic was terrible!
- 2
- Those Italians are crazy drivers! I don' t want to think about it!
- OK, OK. 3
- Yes, so here' s a picture of the Tower of Pisa.
- How nice!
- It was raining that day, but it was still wonderful. We climbed to the top!
- 4
- That' s a photo of the Amo River. That' s the "Ponte Vecchio" , the old bridge.
- 5
- It was very interesting. There were beautiful old buildings in the city, and lots of wonderful museums.
- That’s nice.

A. And what' s this?
B. Why was it so bad?
C. Yes, it was wonderful.
D. What was Florence like?

E. Let' s return to the good parts.
F. Sure, what was your holiday like?
G. Well, did you like your hotel there?

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号