题目内容
（请给出正确答案）
A．It costs nothing to enter the room.
B．Visitors can only visit it on weekends.
C．Visitors can go into any room inside.
D．Everyone has the right to visit the White House.
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更多“A．It costs nothing to enter th…”相关的问题
The Huichol don't use electricity because______.
A．it is too difficult for them to change their lifestyle
B．they know nothing about it
C．it costs too much to string power lines
D．they don't need it
What does the man think about career consultation？
A．It has too much trouble.
B．It costs lots of time.
C．It isn"t helpful.
D．It is worth trying.
听力原文：Do you know how much it costs？
(5)
A．It's Friday.
B．It matches me well.
C．I bought it in the department store.
D．Sorry, I don't know.
What is the actual reason the man lives in ISA？
A．It costs less than living in the dorm.
B．It doesn"t take a lot of time to take care of the house and cook meals.
C．He really has a lot of fun living there with friends.
D．He thinks it"s a great experience living with people worldwide.
Which of the following tag questions is INCORRECT？
A．It is unfair, isn"t it？
B．She said nothing, didn"t she？
C．That is a new phone, isn"t it？
D．Come with us, will you？
Which of the following is true about the picture？
A．It doesn't cost much.
B．It would not be good enough for "my" room.
C．It costs about 30 dollars.
D．It is very famous.
What is the author's opinion about the so-called Green Revolution？
A．It makes it possible to grow more crops.
B．It is useful but sometimes causes problems.
C．It can solve the food shortage problem.
D．It costs a lot but worth the effort.
From the text we can infer that________.
A．it' s universally accepted that it is possible to improve one' s IQ
B．there is nothing in common between IQ and EQ
C．a person with high EQ is willing to take risks
D．a person with low EQ is likely to sympathize with other people
请根据短文的内容，回答题。
Weaving with Light
In the Sierra Madre mountain range of west central Mexico, the native Huichol people live much the way their ancestors did--without electricity. That&39;s because it&39;s too expensive to string power lines to the remote mountain areas where they live. To help support themselves, the Huichol create beautiful artwork. They sell their art in cities hundreds of miles away from their villages.＜br＞
And without electricity--at home or on the road, they can only work during daylight hours. When it gets dark, they must stop whatever they&39;re doing.＜br＞
Now, a team of scientists, designers, and architects is using new technologies to provide the Huichol with light after the sun sets. The scientists&39; technique involves weaving tiny electronic crystals into fabrics that can be made into clothes, bags, or other items.＜br＞
By collecting the sun&39;s energy during the day, these lightweight fabrics provide bright white light at night. Their inventors have named the fabrics "Portable (轻便的) Lights". Portable Lights have the potential to transform. the lives of people without electricity around the world.＜br＞
At the core of Portable Lights technology are devices called high-brightness light-emitting diodes (高亮度法光二极管), or HB LEDs. These tiny lights appear in digital clocks, televisions,and streetlights.＜br＞
LEDs are completely different from the light bulbs(灯泡). Most of those glass bulbs belong to a type called incandescent lights (白炽灯). Inside, electricity heats a metal coil (线圈) to about2,200 degrees Celsius. At that temperature, bulbs give off light we can see. Ninety percent of energy produced by incandescent lights, however, is heat--and invisible. With all that wasted energy, bulbs burn out quickly. They are also easily broken.＜br＞
LEDs, on the other hand, are like tiny pieces of rock made up of molecules (分子) that are arranged in a crystal structure. When an electric current passes through a LED, the crystal structure produces light. Unlike incandescent bulbs, they can produce light of various colors. Within a LED,the type of molecules and their particular arrangement determine what color is produced.
The Huichol don‘t use electricity because __________. 查看材料
A.it is too difficult for them to change their lifestyle
B.they know nothing about it
C.it costs too much to string power lines
D.they don"t need it
听力原文：W: My car wouldn't start in the afternoon. And it stopped many times on the way.
M: How old is your battery？
W: It's quite new. I changed it three weeks ago.
M: Then would you leave your car and keys here？ I'll cheek it tomorrow.
W: Can you make it a bit sooner？
M: Sorry, Miss. We've had many cars here. There is nothing I can do.
W: How much does it cost just to check？
M: Well, it is ＄7 an hour.
W: OK, I'll call again tomorrow.
What's wrong with that car？
A．It was broken.
B．It stopped on the way for many days.
C．It didn't start.
