With his attention________on the shops along the roadside，he knocked an old man down while riding to school.

A  concentrating     B．concentrated     C．to concentrate      D．concentrates

答案　B

解析　考查词组，故选B项。

 

（2011·安徽卷）B

Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources（来源）, as well as one of the oldest. Evidence shows that windmills（风车）began to be used in ancient Iran back in the seventh century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power.

For many centuries, people used windmills to grind（磨碎）wheat into flour or pump water from deep underground. When electricity was discovered in the late 1800s, people living in remote areas began to use them to produce electricity. This allowed them to have electric lights and radio. However, by the 1940s, when electricity was available to people in almost all areas of the United States, windmills were rarely used.

During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher costs. Today, there is a global movement to supply more and more of our electricity through the use of wind.

60. From the text we know that windmills              .

A. were invented by European armies

B. have a history of more than 2800 years

C. used to supply power to radio in remote areas

D. have rarely been used since electricity was discovered

61. What was a new use for wind power in the late l9th century?

A. Sailing a boat. 

B. Producing electricity.

C. Grinding wheat into flour.

D. Pumping water from underground.

62. One of the reasons wind was rediscovered in the 1970s is that             .

A. wind power is cleaner

B. it is one of the oldest power sources

C. it was cheaper to create energy from wind

D. the supply of coal and gas failed to meet needs

63. What would the author probably discuss in the paragraph that follows?

A. The advantage of wind power.

B. The design of wind power plants.

C. The worldwide movement to save energy.

D. The global trend towards producing power from wind.

【解析】选D。推理判断题。根据末段句子Today, there is a global movement to supply more and more of our electricity through the use of wind可知，接下来作者应该谈论利用风能发电的情况，因此选择D项。

In 1977, a dead author of detective stories saved the life of a 19-month-old baby in a most unusual way. The author was Agatha Christie, one of the most successful writers of detective stories in the world.

In June 1977, a baby girl became seriously ill in Qatar, near Saudi Arabia. Doctors were unable to _31_the cause of her illness, so she _32_ to London and admitted to Hammersmith Hospital, where specialist help was _33 _. She was then only half-conscious（半昏迷） and on the “Dangerously Ill” list. A team of doctors hurried to _34_the baby only to discover that they,  35_, were puzzled by the very unusual symptoms. While they were discussing the baby’s case, a nurse asked to __36 to them.

   “Excuse me,” said nurse Marsha Maitland, “_37_ I think the baby is __38_ from thallium poisoning.”

   “_39 _ makes you think that?” Dr. Brown asked. “Thallium poisoning is extremely _40_.”

   “A few days ago, I was reading a novel called A Pale Horse __41__ Agatha Christie,” Nurse Maitland explained. “In the book, somebody uses thallium poison, and _42_ the symptoms are _43_. They are exactly the same as the baby’s.”

   “You’re very observant and you may be right,” another doctor said. “We’ll _44_some tests and find out _45_ it’s thallium or not.”

The _46_ showed that the baby had  47_ been poisoned by thallium, a rare metal used in making optical（光学的） glass. _48_ they knew the cause of illness, the doctors were able to give the correct treatment. The baby soon _49_ and was sent back to Qatar. Inquiries（调查）showed that the poison __50_ from an insecticide（杀虫剂）used in Qatar.

A. describe         B. diagnose                C. discover            D. discuss

A. flew                   B. sent                      C. went                 D. was flown

A. inexpensive         B. important              C. available           D. impossible

A. examine             B. see                           C. look after          D. cure

A. too                     B. either                    C. often             D. never

A. refer                      B. turn                      C. speak                D. belong

A. and                    B. so                            C. as                     D. but

A. coming               B. suffering               C. tired                 D. dying

A. Who                         B. How                        C. What                D. Which

A. rare                     B. serious                     C. clear                 D. dangerous

A. in                     B. on                           C. by                    D. about

A. all                    B. some of                    C. one of               D. both

A. drawn                  B. broadcast               C. announced         D. described

A. make up                  B. carry out               C. get through     D. deal with

A. that                         B. how                         C. what                 D. whether

A. words                  B. tests                      C. examination       D. book

A. indeed              B. actually                 C. probably           D. never

A. As long as         B. As for as               C. Once                 D. If

A. died                    B. got injured         C. recovered          D. got ill

A. must come       B.should come     C.might have come D.can’t have come

How did the movie finally ______? I couldn’t wait to see the ending.

A．come across       B．come out          C．come upon        D．come up with

 

This is the first time I __________ to the capital to attend the celebration ceremony.

A．came             B．come             C．have come        D．had come