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Step 1 Open the CD player by lifting the lid.
Step 2 Take the CD out of its case.
Step 3 Hold the disc by the rim. Be careful not to touch the surface of the disc.
Step 4 Put the CD carefully into the space of the CD player. Make sure the printed side is facing upwards. Close the lid.
Step 5 If you use headphones, plug(插入) them into the headphone jack.
Step 6 Turn on the power.
Step 7 Set the volume(音量) control to a low or middle level.
Step 8 Press the “play” button.
Step 9 Adjust(调整) the volume control to the level you like.
46. What do these instructions explain?
A. How to choose a CD player. B. How to make a CD.
C. How to take care of CDs. D. How to use a CD player.
47. These instructions are for a reader .
A. familiar with CD players B. using a CD player with a remote control（遥控）
C. listening to pop music D. using a CD player for the first time
48. Which step could you do before Step 1?
A. Step 4. B. Step 5. C. Step 3. D. Step 9.
49. What is the “rim” of a CD? It is of a CD.
A. the edge B. the hole C. the music D. the writing
50. The passage is probably taken from a .
A. handbook B. newspaper C. magazine D. diary
查看习题详情和答案>>Most American children eat potatoes. But many children don't know what of the potato is the best for food. Take a knife and cut from the middle of the potato a piece as thin as paper. Hold the piece between your eyes and light. You will see that the potato has skin (皮), an outside rim (边缘) and an inside part. The outside rim which is right under the skin of the potato, is the most valuable part of all. But this is often thrown away with the skin. Even the skin itself is better for food than the inside. When eating a cooked potato, if you choose the inside and leave the outside, you are throwing the best part of it. If you can't eat the whole potato, eating the outside rim and leaving the inside will do.
(1) How many parts does the potato have?
[ ]
A．It has only one part, outside rim.
B．It has two parts, skin and outside rim.
C．It has three parts, skin, outside rim and an inside part.
D．It has four parts, middle, skin, outside rim and an inside part.
(2) What is the best part of a potato?
[ ]
(3) What should you eat first if you can't eat the whole potato?
[ ]
(4) In fact the skin is ________.
[ ]
A．no good at all
B．better than the inside part
C．better than the outside rim
D．as good as the outside rim
(5) What does this passage tell about potatoes?
[ ]
A．How to cook them.
B．How to plant them.
C．What is made up of a potato.
D．How to eat them.
查看习题详情和答案>>2. It was a _____ (please) tour. We all had a _____ (wonder) time.
3. The dictionary is very _____ (use). It will help you a lot.
4. A tsunami (海啸) triggered by an earthquake hit the
countries on the Indian Ocean's rim from Indonesia to
Somalia on Dec. 26th, 2004. Many people lost their _____ (life),
and many people became _____ (home).
5. He's a _____ (luck) man who ran away from the disaster (灾难).
6. I have bought many _____ (education) CD--ROM and none of them _____ (be) good.
7. It sounds _____ (interest), dosen't it?
8. She is the _____ (design) of the game.
9. It is my _____ (two) day in Japan.
10. I have a _____ (love) purse.
Canyon for your fellow visitors and future generations, please follow the guidelines below.
Camping To protect the park, camping is allowed only within permitted camp-grounds. Permits are
required for ovemight camping at the North Rim. Advance book- ing can be received by mail. Please write:
Information Center, P.O. Box 129, Crand Canyon, AZ 86023.
Fires Because of the extreme fire danger, campfires are not allowed except at Mather and Desert View
campgrounds. Collection of firewood is not allowed either.
Hiking Please stay on permitted paths. Otherwise you may destroy desert plants. Pack out what you
pack in, so you leave no signs of your visit. It is important to keep in mind that you are in a national park
where wildlife exists.
Weather The weather at Grand Canyon can change very quickly. With so much rock, lightning (闪电)
causes a particular danger during sudden summer storms. These storms also frequently bring floods inside
valleys, a danger to hikers. Watch the skies and check daily weather reports.
Wildlife Do not feed park wildlife. There have been a few cases at Grand Canyon National Park where
deer were purposely shot because there are plastic bags that left them sick and weak. Hungry deer can be
danger and have kicked and bitten visitors at Grand Canyon. Some other animals will also beg and bite. For
your own safety and the well-being of the animals, please do not feed wildlife, no matter how gentle they
may appear.
____________________________________________________________________
2. Why aren't campfires allowed except at Mather and Desert View campgrounds?
____________________________________________________________________
3. How is the weather at Grand Canyon?
____________________________________________________________________
4. How many guidelines are there in this passage?
____________________________________________________________________
5. What is the main purpose of the passage?
____________________________________________________________________
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