阅读下列短文，从每题所给的四个选项（A，B，C和D）中，选出最佳选项。

　　A hundred years ago, Hong Kong was just a small fishing village. There were only a few thousand people. They lived a simple life.

　　Houses were two-storeyed then at most. There were no buses or cars. While poor people traveled on foot, the rich traveled by rickshaw(人力车). The roads were covered with stones. There were no big ships or ocean liners. People sailed on small boats or sampans(舢板).

　　Within the last hundred years, there has been great important everything. People worked hard to make Hong Kong a commercial(商业的) center. Multi-storeyed buildings, wide roads and flyovers can be seen everywhere we can travel by bus, tram, taxi or underground. Planes and ocean liners come from different parts of the world every day.

　　Hong Kong is now a famous city. Many people from other countries do business or work here, the city already has over six million people and there will be more in the future. Life in Hong Kong is not simple at all nowadays. People must work harder in order to make a living.

　　It is more than five years since Hong Kong returned to China in 1997. Our PLA soldiers have stationed there. We are sure Hong Kong will have a more beautiful future.

1．One hundred years ago, Hong Kong was ________.

[　　]

A．a small city

B．a small farm village

C．a small fishing village

D．a commercial center

2．At that time people went out to sea ________.

[　　]

3．There has been great improvement in Hong Kong within the last hundred years ________.

[　　]

A．because of the hard work of the people in Hong Kong

B．because Hong Kong is very famous

C．because lots of people have worked there

D．because of its return to China

4．Name four things which show Hong Kong is a modern city.

[　　]

A．small fishing village, underground, car and shops.

B．taxi, multi-storeyed buildings, flyovers and wide roads.

C．roads covered with stones, multi-storeyed buildings, tram and bus.

D．planes, sampan, ocean liners and big shops.

5．What's the passage mainly about?

[　　]

A．Hong Konga hundred years ago.

B．Hong Kongthe past and the present.

C．Hong Konga modern city.

D．Hong Kong's return to China.

A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.

“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components(元件), ”said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.

They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.

While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.

Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day-to-day basis.”

72. The difficulty the team of engineers met with while making the robotic fly was that ________.

A. they had no model in their mind

B. they did not have sufficient time

C. they had no ready-made components

D. they could no assemble the components

73. It can be inferred from paragraphs 3 and 4 that the robotic fly_________.

A. consists of a flight device and a control system

B. can just fly in limited areas at the present time

C. can collect information from many sources

D. has been put into wide application

74. Which of the following can be learned from the passage?

A. The robotic flyer is designed to learn about insects.

B. Animals are not allowed in biological experiments.

C. There used to be few ways to study how insects fly.

D. Wood’s design can replace animals in some experiments.

75. Which of the following might be the best title of the passage?

A. Father of Robotic Fly

B. Inspiration from Engineering Science

C. Robotic Fly Imitates Real Life Insect

D. Harvard Breaks Through in Insect Study

I asked the tailor to make a small _____ to my trousers because they were too long.

　　A. change  B. variation  C. revision  D. alteration

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项.选项中有两项多余选项.

----- Can you help me?

----- Sure, what’s the problem?

----- ____81___.

----- Well, how about San Francisco? We went there last year and had a great time.

----    82  

-----Well, there is Golden Gate Bridge of course, and Golden Gate Park. It’s a really big park. You can go for long walks or take a rest in the Japanese Tea Garden. It’s beautiful there.

-----    83    

-----  There is also a place called Fisherman’s Wharf. That’s really popular with tourists. There are lots of shops, cafes and restaurants. And from there you can go on a boat trip to Alcatraz. You know, it’s a small but very beautiful island.

-----    84  

----- No, you can’t stay on the island; there aren’t any hotels. You can only go for the day. I think I’ve still got a book about San Francisco. I can lend it to you.

-----    85    

A. What can you do there?

B. Oh, great! What a great place to stay in!

C What an idea! What is the best time to go there?

D. I can’t decide where to go for the holiday-----any ideas?

E. Thanks a lot. San Francisco, here I come!

F. Hmm, that sounds good.

G. How can I go there?

—Lost and Found Office.

—________？

—I wonder if you have a small black suitcase of mine.

A．What can I do for you 

B．Who's that

C．What's that 

D．How do you do