相关习题
 0  147115  147123  147129  147133  147139  147141  147145  147151  147153  147159  147165  147169  147171  147175  147181  147183  147189  147193  147195  147199  147201  147205  147207  147209  147210  147211  147213  147214  147215  147217  147219  147223  147225  147229  147231  147235  147241  147243  147249  147253  147255  147259  147265  147271  147273  147279  147283  147285  147291  147295  147301  147309  151629 

科目: 来源: 题型:

【题目】阅读理解
Their cheery song brightens many a winter's day. But robins are in danger of wearing themselves out by singing too much. Robins are singing all night一as well as during the day, British-based researchers say.
David Dominoni, of Glasgow University, said that light from street lamps, takeaway signs and homes is affecting the birds' biological clocks, leading to them being wide awake when they should be asleep.
Dr Dominoni, who is putting cameras inside nesting boxes to track sleeping patterns, said lack of sleep could put the birds' health at risk. His study shows that when robins are exposed to light at night in the lab, it leads to some genes being active at the wrong time of day. And the more birds are exposed to light, the more active they are at night.
He told people at a conference, "There have been a couple of studies suggesting they are increasing their song output at night and during the day they are still singing. Singing is a costly behaviour and it takes energy. So by increasing their song output, there might be some costs of energy."
And it is not just robins that are being kept awake by artificial light. Blackbirds and seagulls are also being more nocturnal. Dr Dominoni said, "In Glasgow where I live, gulls are a serious problem. I have people coming to me saying `You are the bird expert. Can you help us kill these gulls?'.During the breeding(繁殖)season, between April and June, they are very active at night and very noisy and people can't sleep."
Although Dr Dominoni has only studied light pollution, other research concluded that robins living in noisy cities have started to sing at night to make themselves heard over loud noise.
However, some birds thrive(兴旺)in noisy environments. A study from California Polytechnic University found more hummingbirds in areas with heavy industrial machinery. It is thought that they are capitalising on their predators(天敌)fleeing to quieter areas.
(1)According to Dr Dominoni's study, what cause robins to sing so much?
A.The breeding season.
B.The light in modern life
C.The dangerous environment.
D.The noise from heavy machinery.
(2)What is the researchers' concern over the increase of birds' song output?
A.The environment might be polluted.
B.The birds' health might be damaged.
C.The industry cost might be increased.
D.The people's hearing might be affected.
(3)What does the underlined word "nocturnal" in Paragraph 5 mean?
A.Active at night.
B.Inactive at night.
C.Active during the day.
D.Inactive during the day.
(4)Why do some birds thrive in noisy environments?
A.Because there are fewer dangers.
B.Because there is more food to eat.
C.Because there is less light pollution
D.Because there are more places to take shelter.

查看答案和解析>>

科目: 来源: 题型:

【题目】听下面一段较长对话,回答以下小题。

1When does the conversation take place?

A. In the evening. B. In the morning. C. In the afternoon.

2How much did the things cost?

A. 4 yuan. B. 14 yuan. C. 40 yuan.

3Where does the conversation take place?

A. In a restaurant. B. In a shop. C. At a hotel.

查看答案和解析>>

科目: 来源: 题型:

【题目】听下面一段较长对话,回答以下小题。

1What happened to the woman?

A. She lost her job.

B. Her boss allowed her to go on holiday.

C. She was given a chance to study abroad.

2How did the man feel about the woman’s boss’s decision?

A. He understood it well.

B. He thought it completely wrong.

C. He didn’t understand it.

3What do we learn about the woman?

A. She goes to work on time every day.

B. She works very hard.

C. She doesn’t know how to use computers.

查看答案和解析>>

科目: 来源: 题型:

【题目】阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。
University Room Regulations
Approved and Prohibited Items
The following items are approved for use in residential (住宿的) rooms: electric blankets, hair dryers, personal computers, radios, televisions and DVD players. Items that are not allowed in student rooms include: candles, ceiling fans, fireworks, waterbeds, sun lamps and wireless routers. Please note that any prohibited items will be taken away by the Office of Residence Life.
Access to Residential Rooms
Students are provided with a combination (组合密码) for their room door locks upon check-in. Do not share your room door lock combination with anyone. The Office of Residence Life may change the door lock combination at any time at the expense of the resident if it is found that the student has shared the combination with others. The fee is $25 to change a room combination.
Cooking Policy
Students living in buildings that have kitchens are only permitted to cook in the kitchen. Students must clean up after cooking. This is not the responsibility of housekeeping staff. Kitchens that are not kept clean may be closed for use. With the exception of using a small microwave oven (微波炉) to heat food, students are not permitted to cook in their rooms.
Pet Policy
No pets except fish are permitted in student rooms. Students who are found with pets, whether visiting or owned by the student, are subject to an initial fine of $100 and a continuing fine of $50 a day per pet. Students receive written notice when the fine goes into effect. If, one week from the date of written notice, the pet is not removed, the student is referred to the Student Court.
Quiet Hours
Residential buildings must maintain an atmosphere that supports the academic mission of the University. Minimum quiet hours in all campus residences are 11:00 pm to 8:00 am Sunday through Thursday. Quiet hours on Friday and Saturday nights are 1:00 am to 8:00 am. Students who violate quiet hours are subject to a fine of $25.
(1)Which of the following items are allowed in student rooms?
A.Ceiling fans and waterbeds.
B.Wireless routers and radios.
C.Hair dryers and candles.
D.TVs and electric blankets.
(2)What if a student is found to have told his combination to others?
A.The combination should be changed.
B.The Office should be charged.
C.He should replace the door lock.
D.He should check out of the room.
(3)What do we know about the cooking policy?
A.A microwave oven can be used.
B.Cooking in student rooms is permitted.
C.A housekeeper is to clean up the kitchen.
D.Students are to close kitchen doors after cooking.
(4)If a student has kept a cat in his room for a week since the warning, he will face _____.
A.parent visits
B.a fine of $100
C.the Student Court
D.a written notice
(5)When can students enjoy a party in residences?
A.7:00 am, Sunday.
B.7:30 am, Thursday.
C.11:30 pm, Monday.
D.00:30 am, Saturday.

查看答案和解析>>

科目: 来源: 题型:

【题目】从以下选项(A, B, C, D, E和F)中选出适合各段落的首句。选项中有一项是多余选项。
A. Come in with something to say.
B. Prepare general comments.
C. Bring materials with you.
D. Don't make them wait.
E. Have no fear.
F. Go it alone.
One of the best things you can do any time in the semester is go see the professor. So hoof on over to an office hour and have some one-on-one face time with someone who'll help you master the material and improve your grade, to boot. But how should you have this conversation with the professor? Here are five insider tips about how to make that office hour really count:
No need to get all bent out of shape about going to see the professor. The professor would actually like to see you and answer your questions. Believe it or not, he or she is on your side and is eager to see you do well. And besides, he or she has seen many students stupider than you, so nothing you're gong to ask will set the record for stupidity.
Even though you might feel more comfortable going with a friend or partner, the office hour will go better if it's just you and the professor. You'll get in more questions, the discussion will be tailored to what you need most help on, and two-party communication is almost always more productive than committee work. You friend can wait outside for the discussion.
If you can't make the official office hours, most professors are willing to make individual, appointments to help you out. If you're lucky enough to land such an accommodation, though, be sure you're 100 percent on time. There's nothing that ticks off a professor more than making him-or herself available for a custom office hour only to find that you don't care enough to come on time. And besides, the professor might leave after ten minutes, which would make your trip a total loss.
If you're meeting with the professor to go over a paper or test, or to ask questions about a particular lecture or reading, make sure you bring that paper or test, or your lecture notes or a copy of the article. The professor doesn't remember the comments he or she wrote on your individual piece of work—though he or she will be able to recall them after just a brief glance at your work. And if you have your lecture notes or the article in hand, you and the professor will be able to examine specific points that are confusing to you, rather than just talking in a general way about the contents.
Office hours almost always go better if you bring a few specific questions to the meeting. It's almost never good to start a meeting with general comments such as: “I didn't understand what you said about [main topic of the course]”or “I couldn't understand any of your lectures last week.” Much better is to come in with two or three conversation-starters, about a specific concept, point, or problem you didn't understand. Keep in mind that in a fifteen-minute office hour (which is how long these things usually last), two or three questions are usually the most you'll have time to discuss.

查看答案和解析>>

科目: 来源: 题型:

【题目】假定你是李华,你的美国朋友Tony打算假期再次来你市参加中文培训班。他想提前了解近年来你市的变化。请你给他写封回信,包括下列内容:

1. 环境更优美了;

2. 出行更方便了:

3. 传统文化更受重视了。

注意:1.词数100左右;

2.可适当增加细节,以使行文流畅。

Dear Tony,

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours,

Li Hua

查看答案和解析>>

科目: 来源: 题型:

【题目】听下面一段较长对话,回答以下小题。

1What does the man want to do?

A. He wants to borrow some money from the woman.

B. He wants the woman to find a job for him.

C. He wants to give the woman some money.

2Why doesn’t the man want to go back home?

A. He wants to work in an employment office.

B. He doesn’t like his father.

C. He doesn’t want to work on his father’s farm.

3What can we learn from the conversation?

A. The man found a job.

B. The man returned home.

C. The man borrowed some money from the woman.

查看答案和解析>>

科目: 来源: 题型:

【题目】听下面一段独白,回答以下小题。

1Why is the man nervous?

A. He’s sitting a third driving test.

B. He hasn’t studied traffic rules yet.

C. He has failed to pass the driving test three times.

2How did the man feel before the second test?

A. Confident. B. Disappointed. C. Nervous.

3Why did the man fail in the second test?

A. He broke a traffic rule again.

B. He hadn’t practiced driving long enough.

C. He was unable to deal with an unexpected case.

查看答案和解析>>

科目: 来源: 题型:

【题目】下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。
增加:在缺词处加一个漏字符号(∧),并在其下面写上该加的词。
删除:把多余的词用斜线(﹨)划掉。
修改:在错的词下画一横线,并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词;2.只允许修改10处,多者(从第11处起)不计分。

例如:
It was very nice to get your invitation to spent∧weekend with you. Luckily
the
I was completely free then, so I'll to say “yes”. I'll arrive in Bristol at around 8:00 p.m.
am
in Friday evening.
On

My old classroom was interesting because three side of the classroom were made from glass. I enjoyed sit close to the windows and looking at the view. On the left-hand side of the class, I could easy see the football field. In the mornings, it was full of students exercising. The view from the back of the classroom is also splendid. Close to the school there was a beautiful park with many trees around them. Farther in the distance, I could not enjoy the view of snowy mountains. On the right side of the class was the road. I was always interested to see the drivers in hurry in the morning. The position of the classroom with its view made me felt like I was dreaming. If I was only a child when I studied in that classroom, I will never forget it.

查看答案和解析>>

科目: 来源: 题型:

【题目】Creating an atmosphere ________ employees feel part of a team is a big challenge.
A.as
B.whose
C.in which
D.at which

查看答案和解析>>

同步练习册答案