Two weeks ago, I bought a bicycle. If you live in town, it is often faster than a car and you           worry about parking.

A．must not          B．should not         C．don't have to       D．may not

Two weeks ago, I bought a bicycle. If you live in town, it is often faster than a car and you           worry about parking.

A．practice

B．drill

C．train

D．exercise

短文改錯(cuò)

You’ll never learn to ride a bicycle if you don’t ________.

A．practice

B．drill

C．train

D．exercise

For his eleven birthday, Elvis wanted a bicycle but was given a guitar by his parents.

You’ll never learn to ride a bicycle if you don’t ________

A．practice

B．drift

C．train

D．exercise

A．practice

B．drift

C．train

D．exercise

The father said to his son, “You         have a bicycle if you babysit your younger sister.”

A．must        B．shall          C．may          D．ought to

You’ll never learn to ride a bicycle if you don’t ________

1. A.
   practice
2. B.
   drift
3. C.
   train
4. D.
   exercise

Two weeks ago, I bought a bicycle. If you live in town, it is often faster than a car and you           worry about parking.

1. A.
   must not
2. B.
   should not
3. C.
   don't have to
4. D.
   may not

The father said to his son,“You ________ have a bicycle if you babysit your younger sister．”

1. A.
   must
2. B.
   shall
3. C.
   may
4. D.
   ought to

Bicycles are a great way to get around. They’re fun to ride, especially down hills. And, as you speed along the road, you might also think of ways in which you could improve your bike— make it safer, more efficient, or more comfortable. In fact, the two-wheeled machines make for some cool science projects.

This year's Intel International Science and Engineering Fair (ISEF), held last May in Cleveland, featured（had）three bicycle projects from three countries. Like many of the other experiments presented at ISEF, the bike projects showed that some of the most interesting scientific research often begins by taking a closer look at things you care about.

Renato Angulo Chu had even grander ambitions. The 12th-grader from Lima, Peru, wanted to address some of his country's economic troubles.

"I see a problem in my country," Renato said. "If you go to the forests in Peru, in some places you cannot find electricity. If you go with my bicycle, you can turn on the lights."

Renato, 16, spent 3 years designing his special Multibike. The device looks like a fixed exercise bike. It has wires fixed along the frame and a blender strapped (fastened) to the back. Turning the pedals operates the blender. The same principle can be used to sharpen knives or sweep city streets.

The Multibike can work either as a fixed bike or as a bicycle able to travel city streets and country roads. It's made from inexpensive materials, and the user gets exercise while pedaling to operate a machine.

"You pedal the bike, and you can mix any drink you want," Renato said. More importantly, he added, the same concept could be used to bring light to houses in remote regions of the rainforest.

1.What can we learn from the first paragraph?

2.Which of the following is true according to the passage?

3.The underlined word “address” in the third paragraph probably has the same meaning as _______.

4.Renato’s special Multibike has all the following  EXCEPT  ________.

5.It can be inferred that Renato’s special bicycle is mainly designed for ________.

Dogs can be worried and pessimistic just like people, researchers report in a new study in Current Biology. And they aren’t talking about basset hounds (短腳獵狗): those dogs just look as if they expect the worst.

What the scientists say is that dogs that exhibit anxiety when left home alone by their owners may have bigger problems — they may be in a permanent bad mood.

This pessimistic outlook may not otherwise be easily apparent in a dog’s other characteristics, like running speed or learning ability, the study reports.

Dogs are similar to humans in the role that emotional state plays in decision making, said Michael Mendel, a veterinary scientist at the University of Bristol and the study’s lead author. The study’s researchers looked at 24 dogs in shelters in Britain.

They placed the dogs in isolated settings and observed their reactions — many barked, jumped on furniture and scratched at the door.

Then they placed bowls in two rooms. One bowl contained food, while another was empty. After training the dogs to understand that bowls can sometimes be empty, and sometimes full, they began to place bowls in ambiguous locations.

Dogs that quickly raced to the locations were more optimistic, and in search of food. Those that did not were deemed pessimistic.

The more separation anxiety a dog expressed while in isolation, the more likely the dog was to have a pessimistic reaction, the researchers found.

The study carries an important message for dog owners, Dr. Mendel said.

Dogs that express serious anxiety when alone may need treatment, as it could be a sign of unhappiness and instability.

This passage can be classified as _________.

     A. an advertisement                                   B. a feature story

C. a news report                                        D. a book review

In the study, many dogs barked, jumped and scratched because __________.

       A. they couldn’t find the bowl with food in it

       B. they were left alone

       C. they needed to be treated

       D. they wanted to be active and optimistic

According to Dr. Mendel, which statement is true?

       A. Like humans, dogs are good at decision making.

       B. Dog owners should train dogs to find food.

       C. Emotional state works sometimes when humans make decision.

       D. Dogs can always find the bowl with food quickly.

What can we learn from the passage?

       A. Dogs will be optimistic as long as they are left alone.

       B. Dogs must be in a permanent bad mood when their owners left.

       C. Dogs that express anxiety don’t need treatment.

       D. Dogs may easily show their pessimistic outlook in learning ability.

Surveys of American teenagers find that about half of them do not get enough sleep on school nights. They get an average of 60 to 90 minutes less than experts say they need.

Experts say teens are biologically programmed to go to sleep later and wake up later than other age groups. Yet many schools start classes as early as seven in the morning.

As a result，many students go to class feeling like Danny，16 years old. He plays two sports，lacrosse and football. He is an active teen—except in the morning. DANNY：“Getting up in the morning is pretty terrible. I’m just very out of it and tired. And through first and second period I can hardly stay awake.”

Michael Breus，a clinical psychologist with a specialty in sleep disorders says：“These aren’t a bunch of lazy kids—although，you know，teenagers can of course be lazy. These are children whose biological rhythms，more times than not，are off.”Teens，he says，need to sleep eight to nine hours or even nine to ten hours a night. He says sleepy teens can experience a form of depression that could have big effects on their general well-being. It can affect not just their ability in the classroom but also on the sports field and on the road because any tired driver is dangerous，especially a teenager with a lack of experience.

So what can schools do about sleepy students？The psychologist says one thing they can do is start classes later in the morning.

Eric Peterson，head of St.George’s School in the northeastern state of Rhode Island，says，“In the end，schools ought to do what’s the right thing for their students，first and foremost.”And he wanted to see if a 30-minute delay would make a difference. It did.

According to the passage，which of the following is the chief cause of sleepy teenagers？

A. Persona haibits.                    B. Early school hours.

C. Sports activities.                    D. Too much home work.

According to Michael Breus，          .

A. Teenagers are too lazy to get up early for school.

B. Teenagers should change their biological rhythms.

C. Lacking sleep can cause serious problems.

D. Sleepy teenagers shouldn’t drive to school.

What is Eric Peterson’s opinion on the issue？

A. Schools should try their best to help students.

B. Students should adjust to their school’s schedule.

C. Changing school schedule is their last choice.

D. Something has to change at the end of a school day.

What does the underlined word“It”in the last sentence might refer to？

A. St.George School.                 B. Rhode Island State.

C. Students in St.George School.        D. 30-minute delay of school day.

What can you infer might follow the passage immediately？

A. Some positive changes in St.George’s school.

B. Some complaints from teachers and parents.

C. Some tips on how to help students foremost.

D. Some unexpected outcome of the delay.

Today is National Bike-to-Work Day. And on New York City’s jammed streets, people are cycling on hundreds of miles of new bike lanes. But New York’s widespread efforts to make streets safer for bikes have also left some locals complaining about the loss of parking spots and lanes for cars.

When the weather is good, Aaron Naparstek likes to pedal（用踏板踩）his two young kids to school on a special Dutch-made bicycle. Naparstek supports the new lane.

Aaron: The bike lane on Prospect Park West is really introducing a lot of new people to the idea that it’s possible to use a bike in New York City for transportation or to travel around. This is what 21^st century New York City looks like.

Prospect Park West is still a one-way road, but where it used to have three lanes of car traffic, now it has two, plus a protected bike lane. Supporters say that makes the road safer for everyone, including pedestrians, by slowing down cars and taking bikes off the sidewalk. But some longtime residents disagree. Lois Carswell is president of a group called Seniors for Safety. She says the two-way bike lane is dangerous to older residents who are used to one-way traffic.

Lois: We wanted a lane — the right kind of lane that would keep everybody safe, that would keep the bikers safe. But we want it to be done the right way. And it has not been done the right way.

Craig Palmer builds bars and restaurants in Manhattan. I was interviewing him for a different story when he brought up the bike lanes all on his own.

Craig: I think the biggest problem is that Bloomberg put all these bike lanes in. You took what used to be a full street and you’re shrinking it.

Then there are the Hasidic Jews in Williamsburg, Brooklyn, who forced the city to remove a bike lane through their neighborhood. But polls show that the majority of New Yorkers support bike lanes by a margin of 56% to 39%. Bicycle advocate Caroline Samponaro of Transportation Alternatives calls that a mandate.

Caroline: If this was an election, we would have already had our victory. The public has spoken and they keep speaking. And I think, more importantly, the public is starting to vote with their pedals.

1.What does Aaron mean by saying “This is what 21^st century New York City looks like.”? 

A．There are hundreds of miles of new bike lanes in 21 ^st century New York City.

B．Drivers slow down their cars and bikes are taken off the sidewalk in New York.

C．Bikes are used as a means of transport in 21 ^st century New York City.

D．It’s possible to make the streets safe for pedestrians in New York.

2.According to the passage, which of the following CANNOT support the opponents of these new bike lanes?   

A．Drivers lose parking spots and lanes for cars.

B．The two-way bike lane is dangerous to older residents.

C．We took what used to be a full street so the road is broader than before.

D．The removal of one bike lane through a neighbourhood in Brooklyn was not supported by the majority of New Yorkers.

3.“A mandate” in Paragraph 8 was referred to a demand or command from ______.

A．the authority       B．the public         C．the supporters      D．the government

4.What of the following might be the best title of the passage?

A．Ride on National Bike-to-Work Day          B．A New Bike Lane Appears in New York

C．A Bike Lane Divides New Yorkers            D．Who Wins an Election