下面的短文后有2项测试任务：（1）第23~26题要求从所给的6个选项中为第2~5段每段选择1个最佳标题；（2）第27~30题要求从所给的6个选项中为每个句子确定1个最佳选项。
Unlocking the Human Genome(基因组)
1A project to unlock secrets-what scientist could resist that challenge?This is what many scientists are doing as they work on the Human Genome Project.The aim of the project is to decode(破译)all of the some 100,000 genes in the human body.Scientists are using DNA fingerprinting techniques to do the decoding.
2DNA is the substance found in the chromosomes(染色体)of a cell.A chromosome is a chain of genes.Each gene carries a piece of genetic information.At any one moment in a cell,thousands of genes are turned on and off to produce proteins(蛋白质).The challenge for scientists is to find out what role each gene plays in protein production.At some point this decoding will be complete.Then scientists will have a map of an ideal genome,or a picture of the total genetic nature of a human being.The ideal genome is called a consensus(交感)genome.Everything works well in a consensus genome.
3But no one in the world has a consensus genome.Everyone’s genome is different from the ideal.These differences are referred to as genetic mutations(突变).Genetic mutations in a person’s genome mean that the person has a greater than average chance of suffering from health problems.Some problems are not life-threatening.These would include things like colorblindness,or mild headaches.Other problems are serious,such as heart disease,or cancer.
4It will take years to identify the role of each of the 100,000 genes,The short-term goal of the project is to find the physical and mental health problems a person is likely to encounter during his or her lifetime.The long-term goal is to have each person live a longer,healthier life.
23.paragraph 1
24.paragraph 2
25.paragraph 3
26.paragraph 4
AHow does DNA work?
BWhat is the Human Genome Project about?
CHow are the DNA samples collected?
DWhat are the goals of the Human Genome Project?
EWhat is the role of each gene?
FWhat are the consequences of genetic mutations?
27.The Human Genome Project is trying to map allthat make us human.
28.Decoding the human genome is a challenge to.
29.Genetic mutations in a person’s genome may affect.
30.Scientists are trying hard to discoverof each of the genes in our body.
Athat person’s health
Ba scientific answer
Cscientfic researchers
Dthe genes
Ethe function
Fthe size
第4部分：阅读理解（第31~45题，每题3分，共45分）
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。
第一篇Motoring Technology
1.2 million road deaths worldwide occur each year,plus a further 50 million injuries.To reduce car crash rate,much research now is focused on safety and new fuels-though some electric vehicle and biofuel research aims at going faster.
Travelling at speed has always been dangerous.One advanced area of research in motoring safety is the use of digital in-car assistants.They can ensure you don’t miss important road signs or fall asleep.Most crashes result from human and not mechanical faults.
Some safety developments aim to improve your vision.Radar can spot obstacles in fog,while other technology“sees through”big vehicles blocking your view.
And improvements to seat belts,pedal(脚踏)controls and tyres are making driving smoother and safer.The colour of a car has been found to be linked with safety,as have,less surprisingly,size and shape.
But whatever is in the fuel tank,you don’t want a thief in the driving seat and there have been many innovations(创新).Satellite tracking and remote communications can also come into play if you crash,automatically calling for help.
Accidents cause many traffic jams,but there are more subtle interplays between vehicles that can cause jams even on a clear but busy road.Such jams can be analyzed using statistical tools.Robotic drivers could be programmed to make traffic flow smoothly and will perhaps one day be everyons’s personal chauffeur(司机),but their latest efforts suggest that won’t be soon.
31.To reduce car crash rate,many scientists are working hard to
A.design fully automatic cars.
B.develop faster electric vehicles.
C.analyze road deaths occurring worldwide each year.
D.improve the safety of cars and develop new fuels.
32.According to the second paragraph,most road accidents happen due to
A.heavy traffic.
B.human mistakes.
C.engine failure.
D.bad weather.
33.Which of the following safety developments is NOT mentioned in the passage?
A.Windscreens that can help drivers to improve their vision.
B.Radars that can help drivers to see obstacles in fog.
C.Devices that can help drivers to see through big vehicles.
D.Improvements in seat belts,pedal controls and tyres.
34.Satellite tracking and remote communication systems cna be used to
A.reduce oil consumption.
B.remove the obstacles on the road.
C.call for help when one’s car crashes.
D.help drivers get out of a traffic jam.
35.Which of the following statements is true of robotic drivers?
A.It will take some time before robotic drivers are available.
B.Robotic drivers are not allowed to driveon busy roads.
C.Robotic drivers can never replace human drivers.
D.Robotic drivers are too expensive to use.
第二篇Good Table Manners
Manners play an important part in making a favorable impression at the dinner table.Here are some general rules:
Napkin(餐巾)use
The meal begins when the host unfolds his or her napkin.This is your signal to do the same,so place your napkin on your lap.Unfold it completely if it is a small napkin,or in half,lengthwise(纵向地),if it is a large dinner napkin.
If you need to leave the table during the meal,place your napkin on your chair as a signal to your server that you will be returning.Once the meal is over,place your napkin neatly on the table to the right of your dinner plate.Do not refold it.
Use a napkin only for your mouth.Never use it for your nose,face or forehead.
Use of utensils(餐具)
Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensil for each course.
If soup is served,remember to spoon away from yoursefl.This helps stop the drips.Do not put the entire soup spoon in your mouth.Instead,fill a soup spoon about 75 per cent with soup,and sip(啜饮)it from the side noiselessly.
After finishing dinner,place the knife and fork parallel to one another across the plate with the knife alade facing inward toward the plate.
Using your fingers
Here’s a list of finger foods:sandwiches,cookies,small fruits or berries with stems,French fries and potato chips,and hamburgers.
Chew(咀嚼)with your mouth closed and don’t make noise;don’t talk with your mouth full.
Bread must be broken with your hands.It is never cut with a knife.
Don’t pick something out of your teeth.Instead,excuse yourself to the bathroom.
If possible,try not to cough at the table.
Do not put your elbows(肘)on the table.In France,it is essential to have both hands above the table at the same time.
Do not put bones or anything else on the table.Things that are not eaten should be put on your plate.
36.Where is the napkin normally placed during the meal?
A.On your chair.
B.On the table.
C.On your lap.
D.On your plate.
37.The napkin is used only for
A.your forehead.
B.your mouth.
C.your nose.
D.your face.
38.Which utensil is used first?
A.The knife.
B.The fork.
C.The spoon.
D.The one farthest from the plate.
39.All of the following are finger foods except
A.soup.
B.sandwiches.
C.cookies.
D.hamburgers.
40.Which of the following shows good table manners?
A.Talking with your mouth full.
B.Putting bones on your plate.
C.Putting your elbows on the table.
D.Chewing with your month open.
