题目内容

—Tom, your foreign teacher speaks Chinese fluently!

—Oh, she has lived in China for six years, otherwise she _______ such good Chinese.

A. didn’t speak B. would not have spoken

C. would not speakD. hadn’t spoken

 

C

【解析】

试题分析:句意:--汤姆,你的外籍老师汉语说的很流利!--她在中国生活了六年,否则她不会说这么好的汉语。这里的otherwise相当于if虚拟条件句,所以主句也是虚拟语气,因为是现在英语说的很好,所以是和现在相反的虚拟语气,所以主句是would do。所以选C。

考点:考查虚拟语气

 

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DNA left at a crime scene could be used in the future to build up a picture of an offender’s face, it was revealed tonight.

A first step towards genetic mugshots has been taken by researchers in the US who link specific DNA markers with face shape. To identify the genes, they focused on known mutations(突变) that cause changes of the face and head. Normal versions of these genes were found to influence individual features. For instance, one gene affected the lips, another the shape and configuration of bones around the eyes, and a third the appearance of the mid-face and skull. In total, 20 genes had “significant effects” on facial appearance.

Lead scientist Professor Mark Shriver, from Pennsylvania State University, said: “We use DNA to match to an individual or identify an individual, but you can get so much more from DNA. Currently we can’t go from DNA to a face, or from a face to DNA, but it should be possible.” The implications are far reaching, raising the possibility of creating a data bank of facial types based on genetic markers. DNA from a crime scene could then be used to produce a rough image of the face of an offender or victim. Such genetic mugshots may be more reliable than computer-generated “e-fits” based on witnesses’ recollections. Other uses of the technique might include proving the identity of fathers in paternity cases, or visualising our remote ancestors from fossil DNA.

The scientists wrote in the online journal Public Library of Science Genetics: “Such predictive modelling could be forensically useful; for example, DNA left at crime scenes could be tested and faces predicted in order to help to narrow the pool of potential suspects. Further, our methods could be used to predict the facial features of descendants, deceased ancestors, and even extinct human species. In addition, these methods could prove to be useful diagnostic tools.” The team developed a model which first established a range of physical face shapes from people of mixed West African and European ancestry from the US, Brazil and Cape Verde. Measurements were taken of thousands of point co-ordinates on grids placed over 3D images of the faces.

Statistical methods were then used to determine the relationship between facial differences and the effects of gender, ethnic ancestry and individual gene variants.

1.The underlined word “mugshots” in the second paragraph most probably means _________.

A. different facesB. characteristicsC. pictures of faces D. genders

2.What can be inferred from the passage?

A. DNA has been used to build up a picture of an offender’s face.

B. It may be much easier to catch criminals with the help of DNA.

C. In all, 20 genes had “significant effects” on facial appearance.

D. One gene can affect more than one part of your face.

3.According to Professor Mark Shriver, we know_________.

A. they can merely match to an individual or identify an individual

B. there is a possibility of going from DNA to a face

C. DNA could be used to produce a rough image of an offender’s face

D. this technology is more reliable than computer-generated “e-fits”

4.What is the most possible title of the passage?

A. Creating a data bank of DNA

B. Recognizing the DNA of criminals

C. Predicting the location of offence using DNA

D. Building image of offender’s face from DNA

 

On 23rd December, 2013, Michael Schumacher — the famous Formula-One race car driver — received serious brain injuries after hitting his head on a rock while downhill skiing with his son. The accident happened during a family holiday in the French Alps. Although he was wearing a helmet, which broke apart on impact, the F1 celebrity was moving at speeds of up to 62 mph and skiing outside the off-piste safety demarcations (滑雪场地外的安全区). Doctors reported that he would have died on impact if he hadn’t been wearing a helmet. He has been in a coma (昏迷) since arriving at a nearby hospital where he was airlifted to from the site of the accident.

Michael Schumacher grew up in frugal (简朴的) conditions and started what would become his remarkable professional career when his working class father — a bricklayer — built him a go-kart from where he started participating in competitions. He started his adult career racing for Formula Ford in 1988 and later raced for Formula One Ford, Ferrari, and Mercedes AMG. He holds numerous F1 world records including most race victories, fastest laps, and most races won in a single season. According to the Formula One website, he is “statistically the greatest driver the sport has ever seen”. Also notable are his contributions to charity, during the peak of his career he has given away more than 50 million Euros to a variety of charity organizations, most to help children around the world.

Millions of Europeans and other fans around the world are holding their breath and waiting for information about his hopeful recovery. We wish him and his family the best.

1.Michael Schumacher is in a coma after ________.

A. crashing in an airlift accident

B. a Formula One Ford car crash

C. a skiing accident during his holiday

D. a bump onto a rock in a skiing race

2.What is a go-kart most likely to be?

A. A medical instrument.

B. A small car-racing field.

C. A racing-car driver’s safety helmet.

D. A small motor vehicle used for racing.

3.From the passage we can learn that Michael Schumacher ________.

A. is recovering quickly at the Alpine Hospital in France

B. gave all his money to charity during the height of his career

C. raced for Ferrari and Mercedes before becoming a celebrity

D. came from humble origins to become the greatest F1 driver ever

 

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