Five million people visit Grand Canyon in the US every year. For the purpose of helping project Grand Canyon for your fellow visitors and future generations, please follow the guidelines below.
Camping
To protect the park, camping is allowed only within permitted campgrounds. Permits are required for overnight camping at the North Rim. Advance booking can be received by mail. Please write: Information Center, P. O. Box 129, Grand 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(远足)
Please stay on permitted paths. If you don’t do so, 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 they ate plastic bags that left them sick and weak. Hungry deer can be a 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.
1.What do the underlined words “pack out what you pack in” in Paragraph 4 probably mean?
A. keep everything out of campgrounds B. take away everything you bring in
C. carry all the necessary food D. look after your personal belongings
2.Why were some deer killed on purpose at Grand Canyon?
A. They ate wrong things and became very ill.
B. They were a danger to other gentle animals.
C. They begged food from visitors.
D. They kicked and bit visitors.
3.What is the main purpose of the text?
A. To provide travel information. B. To report some recent news.
C. To teach tourists hiking skills. D. To introduce the wildlife.
假定你是李华，你所在的运动俱乐部将面向外国朋友开设太极(Tai Chi)课，请写一封邮件，邀请你校的英国交换生Peter参加，要点如下：
1. 上课时间：每周一下午5:00-6:00；
2. 上课地点：学校健身房；
3. 打太极的好处；
4. 报名的截止时间：下周二。
注意：1. 词数100左右；
2. 可以适当增加细节，以使行文连贯；
参考词汇：健身房gym
Dear Peter,
How is everything going?
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
阅读下面的句子，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
1.With so many eyes ________ (fix) on him, he was very nervous.
2.Careless spelling mistakes in a letter can create an unfavorable ________. (impress)
3.If you ________ (tell) me about your trouble last week, I could have helped.
4.________ I think counts most is that equal significance should be attached to after-school activities.
5.How long do you think it will be ________ China sends another manned spaceship?
6.When it comes to ________ (speak) in public, he is second to none.
7.The 1960s was a period ________ greater opportunities were open to women.
8.She found one excuse after ________ to postpone going to the doctor.
9.It’s ________ (consider) of her to buy souvenirs for her colleagues each time she goes on business.
10.This is the first time they ________ (make) it through to the final.
A few years ago I chose to carry out a “word of the year”. As I began 2014, I looked forward to how the word “________“ would shape the coming year.
I planned to give a gift a day for the ________ year. Some gifts would take time to prepare. Some of the other gifts came about more ________, such as helping someone cross the street. But either way, I always tried to seek a(n) ________ to serve.
Some gifts in 2014 ________ reading to my next door’s kids. I ________ that as my gift of the day. My mind is still crowded with precious ________ now.
Twice I left a few coins ________ on the sidewalk for a kid to find. It may have ________ a few cents, but I considered it a chance to ________ another person’s day. Along the way, I also made my own day pleasant.
One of my most ________ gifts throughout the whole year was letting other ________ go ahead of me in line at stores. Once again, ________ standing in line at a store one day, my son told me somebody ________ us had only two things to ________ I signed to the person to take our place in line. The few ________ minutes of wait time passed with hardly realizing it. They were minutes passing ________.
Although this act of ________ didn’t deserve something surprising, it remains one of my ________ gifts of 2014 and all because I saw how my ________ to give had become part of my children’s lives as well.
1.A. luck B. gift C. health D. money
2.A. entire B. next C. previous D. final
3.A. formally B. regularly C. suddenly D. naturally
4.A. job B. routine C. opportunity D. excuse
5.A. included B. suggested C. required D. kept
6.A. looked into B. looked upon C. went over D. went for
7.A. events B. changes C. motivations D. memories
8.A. accidentally B. cautiously C. deliberately D. constantly
9.A. cost B. made C. wasted D. occupied
10.A. shorten B. brighten C. start D. appreciate
11.A. expensive B. special C. expected D. repeated
12.A. friends B. relatives C. customers D. managers
13.A. while B. once C. since D. though
14.A. beyond B. behind C. ahead of D. next to
15.A. donate B. serve C. purchase D. share
16.A. necessary B. endless C. limited D. extra
17.A. rapidly B. slowly C. casually D. painfully
18.A. uniting B. delivering C. receiving D. giving
19.A. perfect B. favorite C. strangest D. richest
20.A. ability B. arrangement C. choice D. hesitation
Oumuamua,an object through space that was discovered on October 19th, has already made history.The speed at which it is moving relative to the sun means that it cannot be native to the solar system. Its official name is thus II/2017 UI, with the “I” standing for “interstellar(星际)”—the first time this name has ever been used.
That is exciting.Some scientists, though, entertain an even more exciting possibility: what if Oumuamua is not an asteroid(小行星),as most think, but an alien(外星的)spacecraft? Asteroids come in ll sorts of shapes and sizes, but Oumuamua seems particularly different.As best as astronomers can tell, it is cigarlike,being roughly 180 meters long but only about 30 meters wide.That makes it longer than anything known of in the solar system.Such a shape would be a sensible choice for a spaceship,since it would minimize the scouring(冲刷)effect of interstellar dust.
With that in mind the Breakthrough Listen project, an organization aimed at hunting for alien life, plans to turn the world’s biggest radio telescope,the Green Bank instrument in Virginia,towards Oumuamua to see if it can hear anything interesting.Oumuamua is currently about twice as far from Earth as Earth is from the sun. At that range,the telescope should be sensitive enough to pick up a transmitter about as powerful as a mobile phone after just a few seconds—worthy of observations.
Will it find anything? Almost certainly not.Oumuamua has the same reddish color as many as asteroids,so probably has a similar composition.And, if it really is a spaceship, it is strange that signs of its artificial origin have not been seen already.It could, in theory, be a derelict(遗弃星球). But in that case the telescope is unlikely to hear anything. By far the most likely option is that it is exactly what it seems to be: a huge space rock, one that has come to the solar system from the vast space between the stars.
1.What makes some scientists think Oumuamua is possibly an alien spacecraft?
A. Its size. B. Its color.
C. Its shape. D. Its speed.
2.What does the underlined word“that”in the third paragraph probably mean?
A. The research into the solar system.
B. The purpose of hunting for alien life.
C. The effect of interstellar dust on Oumuamua.
D. The possibility of Oumuamua being a spaceship.
3.What is Oumuamua most likely to be according to the author?
A. An asteroid. B. A space rock.
C. Interstellar dust. D. An alien spacecraft.
4.It can be inferred from the last paragraph that__________.
A. Oumuamua will return to where it’s from soon
B. Oumuamua’s real identity remains to be found out
C. astronomers have not seen signs of Oumuamua’s artificial origin
D. the Green Bank telescope has already heard something from Oumuamua
Our perception of hoe food tastes is influenced by cutlery like knives, forks, and spoons, research suggests.
“Size, weight, shape and color all have an effect on flavor,” says a University of Oxford team. Cheese tastes saltier when eaten from a knife rather than a fork; while white spoons make yoghurt taste better, experiments show.
The study in the journal Flavour suggests the brain makes judgments on food even before it goes in the mouth. More than 100 students took part in three experiments looking at the influence of weight, color and shape of cutlery on taste. The researchers found that when the weight of the cutlery is consistent with expectations, this had an influence on how the food tastes. For example, food tasted sweeter on the small spoons that are traditionally used to serve desserts.
Color contrast was also an important factor-white yoghurt eaten from a white spoon was rated sweeter than white yoghurt tasted on a black spoon. Similarly, when testers were offered cheese on a knife, spoon, fork or toothpick, they found that the cheese on a knife tasted saltiest.
“How we experience food is a multisensory experience involving taste, feel of the food in our mouths, pleasant smells, and the feasting of our eyes,” said Pro. Charles Spence and Dr. Vanessa Harrar. “Even before we put food into our mouths, our brains have made a judgment about it, which affects our overall experience.”
Past research has shown that china can change our perception of food and drink. For example, people generally eat less when food is served on smaller plates. “The new research into how the brain influences food perception could help dieters or improve gastronomic（美食的）experiences at restaurants,” said Pro. Spence. He told BBC News: “There’s a lot more to food than what’s on the plate. Many things we thought didn’t matter do. We’re going to see a lot more of neuroscience（神经科学）design around mealtimes.”
1.According to the text, we know that the cheese used in the experiment is ________.
A. salty B. sour
C. sweet D. bitter
2.What do we know about the weight of the cutlery in paragraph 3?
A. It is important for people.
B. People usually don’t care about it.
C. It affects how the food tastes.
D. It is always different from people’s expectation.
3.What does the underlined word “multisensory” in Paragraph 5 probably mean?
A. Coming from the senses.
B. Involving many different senses.
C. Able to feel or perceive.
D. Easily affected by other feelings.
4.What can we learn from the last paragraph?
A. Research on cutlery is of great importance.
B. Research on food will be continued in the future.
C. Research on the effect of nerves on the taste of food will be done.
D. Research on plates and food will be carried out in the near future.
