A super drug that could remove Alzheimer’s (老年痴呆症)，heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.

  Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.

  Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.

  Of the three longevity genes, two genes increase the production of so-called good cholesterol(胆固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”

  But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遗传倾向), lifestyles and life events. Many genes are probably involved.

Some people are able to live to 100 years because of ______.

   A. a magical medicine  B. three special genes    C. good living habits     D. longevity proteins

Why does the discovery of the longevity genes mean a lot?

   A. Because it can bring great benefits to scientific labs.              

B. Because it can help people change their unhealthy genes

   C. Because it helps produce a drug that can make people live longer.  

D. Because it will help scientists build up a new branch of biology.

From Paragraph 4 we can infer that ________.

   A. longevity genes can create good cholesterol.                   

B. the volunteers share some common ancestors

   C. bad habits are likely to have no effect on the volunteers           

D. longevity genes protect the volunteers against bad habits

What is Andrew Ketteringham’s attitude toward the study?

   A. Positive    B. Negative         C. Critical                 D. Cautious

A super drug that could remove Alzheimer’s (老年痴呆症)，heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.
Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.
Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.
Of the three longevity genes, two genes increase the production of so-called good cholesterol(胆固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”
But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遗传倾向), lifestyles and life events. Many genes are probably involved.
【小题1】Some people are able to live to 100 years because of ______.

A super drug that could remove Alzheimer’s (老年痴呆症)，heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.

    Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.

    Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.

    Of the three longevity genes, two genes increase the production of so-called good cholesterol(胆固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”

    But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遗传倾向), lifestyles and life events. Many genes are probably involved.

1.Some people are able to live to 100 years because of ______.

A. a magical medicine  B. three special genes   C. good living habits  D. longevity proteins

2.Why does the discovery of the longevity genes mean a lot?

A. Because it can bring great benefits to scientific labs.

B. Because it can help people change their unhealthy genes

C. Because it helps produce a drug that can make people live longer.

D. Because it will help scientists build up a new branch of biology.

3.From Paragraph 4 we can infer that ________.

A. longevity genes can create good cholesterol.

B. the volunteers share some common ancestors

C. bad habits are likely to have no effect on the volunteers

D. longevity genes protect the volunteers against bad habits

4.What is Andrew Ketteringham’s attitude toward the study?

A. Positive    B. Negative         C. Critical                 D. Cautious

A super drug that could remove Alzheimer’s (老年痴呆症)，heart disease and diabetes (糖尿病) and help people live to 100 is being developed by scientists. Their research is based on the identification of three genes that help prolong lives and prevent diseases which occur in old age. Medically controlling the proteins made by the “ longevity genes” will allow millions to live longer, predicts Dr Nir Barzilai.

  Those whose DNA strongly features the three genes are 80 percent less likely to develop Alzheimer’s. The genes also fight against the deadly impact of smoking, poor diet, obesity and lack of exercise.

  Already, several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage old age. “ The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing,” he said.

  Of the three longevity genes, two genes increase the production of so-called good cholesterol(胆固醇), which reduces the risk of heart disease. The third prevents diabetes. They were discovered by Dr Barzilai’s team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the group, which shared relatively few common ancestors, was 20 times more likely to hit the entury. Dr Barzilai said: “ 30 percent of them were obese or overweight and 30 percent smoked two acks of cigarettes a day for more than 40 years, however they can live to 100.”

  But Andrew Ketteringham of the Alzheimer’s Society said: “Alzheimer’s disease, a most common disease, is likely to be caused by a combination of genetic disosition(遗传倾向), lifestyles and life events. Many genes are probably involved.

1.Some people are able to live to 100 years because of ______.

   A. a magical medicine  B. three special genes    C. good living habits     D. longevity proteins

2.Why does the discovery of the longevity genes mean a lot?

   A. Because it can bring great benefits to scientific labs.             

B. Because it can help people change their unhealthy genes

   C. Because it helps produce a drug that can make people live longer.  

D. Because it will help scientists build up a new branch of biology.

3. From Paragraph 4 we can infer that ________.

   A. longevity genes can create good cholesterol.                   

B. the volunteers share some common ancestors

   C. bad habits are likely to have no effect on the volunteers           

D. longevity genes protect the volunteers against bad habits

4.What is Andrew Ketteringham’s attitude toward the study?

   A. Positive    B. Negative         C. Critical                 D. Cautious

A. Find out recycling programs.

B. Set up your own recycling model.

C. Help to see its benefits.

D. Know what can be recycled.

E. Spread the word.

F. Get active, not frustrated.

Recycling is one means of ensuring that the items we’ve finished using get returned to the resources pool and either get turned into something else or are cleaned and reused. Recycling helps to save on additional energy. Recycling also reduces the amount of material and lessens pollution involved in waste disposal (处理). Once you know how to recycle, you’ll realize it’s not that hard and it soon becomes second habit.

61. ______

Many items are recyclable and over time, more items are added to the list of what can be recycled. Although recycling is dependent on your local conditions, as a general rule, most of the following items are recyclable but you do need to read the policies relevant in your area. Some items can’t be recycled for reasons ranging from complexity to hazards (危险). Although technology continues to change all the time (in which case, keep an eye on what new items can be recycled), there are still some items that cannot be recycled. Don’t put these into the recycling containers because they create problems and can potentially pollute the recyclables too.

62. ______

If you have the time, become a champion for recycling by informing community groups, school children, pre-school groups and other interested groups of the values of recycling and how people can make it easier to do. For activities with children and teens, there are good books and videos that you can use and consider bringing along people from the recycling industry to talk about their role and what they do.

63. ______

Recycling takes up space in the home, so it’s important to work out how to deal with this in a way that doesn’t impact living area space or create danger in any way. There are lots of great choices that you can either buy or make to keep recycling sorted and safe within your home before putting it out for collection. Some of your choices may depend on the preferences of the collector––in some areas, mixing recyclables is just fine, while in others, they’ll only collect separated recyclables or perhaps only collect different types of recyclables on different weeks. If mixing your recycling is not an option, you’ll need some extra sorting space.

64. ______

It is always easier to find holes in commitments to change our practices; it’s a natural human reaction. In the case of recycling, there will always be those who inform you ever so seriously that recycling uses too much energy, that recycled products have to travel far distances, etc. But it is far better to be devoted to getting on with it than to be crying about the uselessness of it all! Moreover, the benefits of recycling, particularly in the areas of job creation, pollution reduction and general community safety, outweigh its negativity.

65. ______

Recycling can turn somewhat frustrating if you’re in a city with very strict boundaries on what can and cannot be recycled due to lack of local facilities. And the more dangerous the waste, the harder it can be to recycle, although many facilities are cropping up to deal with batteries, electronics, and the like. However, it is important to find ways to work around such issues, that work for both you and your community. You can ask for more and better recycling facilities positively through a demonstration of community support, and it’s more likely that your area will get them and that the recycling will become easier for your community.