When it comes to your skin, there is an important fact that you must keep in mind: Your skin is the largest organ of your body.As an obvious result, skin health and maintenance(保养) is vital.Your skin does everything from protecting you from the elements to assisting you with breathing.Your skin keeps your body hydrated (含水的) and regulates your body's temperature.In the end, this really is only the beginning of all of the various vital functions that your skin provides to you.

Despite the extreme importance of a person's skin, the reality is that many people simply do not pay much attention to issues relating to the health of their skin.With that in mind, there are some prime tips and pointers that you must always keep in mind when it comes to the health and protection of your skin.

Protection against harmful rays from the sun is one of the most important steps that you need to take.With this in mind it is vitally important that you make certain you use solid protection when you go out into the sun.

Your diet also has a direct effect on the health of your skin.The most important aspect of your diet in relation to the health of your skin is to make certain that you eat a proper amount of food items that contain the proteins and nutrients necessary for your skin’s health.

Water is also important to the health of your skin.While you certainly have heard it before, it actually is true that you should drink at least eight 8-ounce glasses of fresh and pure water every day to keep healthy skin.

Finally, when it comes to the health of your skin today and into the future you should avoid smoking all together.In addition, you should drink alcohol only in moderation.Both smoking and too much alcohol consumption can negatively affect the health of your skin in significant ways.

1.The underlined word “elements” in the first paragraph probably refers to ______.

      A.bad weather                                        B.a favorable environment

      C.all the chemicals                                  D.the cells making up the skin

2.The writer lists some of the functions of skin in the beginning part to ______.

      A.make an analysis of the main topic of the passage

      B.draw readers’ attention to the main topic of the passage

      C.give a brief introduction to the main topic of the passage

      D.give the readers a summary of the main topic of the passage

3.Which of the following does not help maintain the health of skin?

       A.Drinking heavy alcohol.

      B.Taking proper diet in one’s life.

      C.Using solid protection when exposed to the sun.

      D.Drinking enough fresh and pure water every day.

4.Which of the following might be the most proper title of the above passage?

      A.An essential organ of our body.          B.Tips for soft and smooth skin.

       C.Habits and skin health.                       D.How to keep our skin healthy.

Japanese doctors have used thin sheets of tissue from people’s cheeks to repair damaged corneas (角膜).A team from Osaka University transplanted thin layers of cheek cells onto the eyes of four patients with a rare and painful eye condition, reports BBC online.Patients whose vision had been cloudy could see well afterwards, and the “new corneas” remained clear more than a year after the operation.

Doctors can also take cells from a healthy eye and grow them in a dish to produce a new cornea, or they can transplant corneas from donors.But these techniques may not work when both eyes are too badly damaged by accident or disease.

The team hopes their work may help solve the problem and lead to other types of grow-your-own tissue transplants.The cornea is the clear layer of cells on the surface of the eye.It can be damaged by trauma (外伤) or by a range of diseases.

The team worked with four patients who had a painful condition that caused cloudy corneas and dry eyes.Often the eye can regenerate cornea cells but none of the four patients had this ability.The researchers took a 3 mm-wide square of tissue from inside the mouth (cheeks) and grew it into a thin layer in the lab.They used a special low-temperature technique to separate a very thin sheet off each batch (组).They then laid that onto the patient’s eye.The cell layers stuck onto the eye and developed into tissue that looked and acted like a healthy cornea.

However, long-term follow-up and experience with a large series of patients are needed to assess the benefits and risks of this method.“Yet, it does offer the potential of treating severe eye diseases that are resistant to standard approaches,” said the head of the research, Kohji Nishida.

1.Now doctors can repair the damaged corneas with the following methods EXCEPT ______.

       A.using mouth tissue

       B.taking cells from a healthy eye and growing them in a dish

       C.transplanting corneas from another person

       D.using finger tissue

2.If both eyes are too badly damaged, we can treat them ______.

       A.only by using mouth tissue

       B.by taking cells from a healthy eye and growing them in a dish

       C.by transplanting healthy corneas from donors

       D.by none of the mentioned methods

3.We can infer from the passage that ______.

       A.the new technique can be widely used in the operations

       B.the new technique needs to be further tested

       C.the new technique has more benefits than risks

       D.any new technique has risks

4.Which of the following is the best title?

       A.A New Invention on Eye Protection.

       B.A New Technique about Eyes.

       C.Mouth Tissue Can Restore Your Vision.

       D.Transplanting Can Restore Your Vision.

A study of art history might be a good way to learn more about a culture than is possible to learn in general classes.Most typical history courses concentrate on politics, economics, and wars.But art history focuses on much more than this because art reflects not only the political values of a people, but also activities of our ancestors–or of people very different from our own–can be provided by art.In short, art expresses the essential qualities of a time and a place.And study of it clearly offers us a deeper understanding than what can be found in most history books.

In history books, objective information about the political life of a country is presented: that is, facts about politics are given, but opinions are not expressed.Art, on the other hand, is subjective: it reflects emotions and opinions.The great Spanish painter Francisco Goya was perhaps the first truly political artist.In his well-known painting The Truth of May, 1808, he criticized the Spanish government for its misuse of power over people.Over a hundred years later, symbolic images were used in Pablo Picasso’s Guernica to express the horror of war.Meanwhile, on another continent, the powerful paintings of Diego Rivera, Jose Clements Orozco, and David Alfaro Siqueiros–as well as the works of Alfredo Ramos Martinez–depicted these Mexican artists’ deep anger and sadness about social problems.

In the same way, art can reflect a culture’s religious beliefs.For hundreds of years in Europe, religious art was almost the only types of art that existed.Churches and other religious buildings were filled with paintings that depicted people and stories from the Bible.Although most people could not read, they could still understand biblical stories in the pictures on the church walls.By contrast, one of the main characteristics of art in the Middle East was (and still is) its absence of human and animal images.This reflects the Islamic belief that statues are unholy.

1.Which of the following statements is NOT true according to the passage?

       A.The way art expresses is the same all over the world.

       B.Art history supplies us with knowledge about everyday activities of people in the past.

       C.Most typical history courses don’t cover people’s spirits.

       D.Art is subjective in that it will find a ready echo in our hearts.

2.Which of the following statements is true according to the passage?

       A.Unlike Francisco Goya, Pablo Picasso and several Mexican artists expressed their political opinions in their paintings.

       B.History books often show the editors’ political view.

       C.Religious art remained in Europe for centuries the only type of art because most people regarded the Bible as the Holy Book.

       D.Picasso was something of a political artist.

3.The passage is mainly discussing ______.

       A.the difference between general history and art history

       B.the making of art history

       C.what we can learn from art history

       D.the influence of artists on art history

4.It may be concluded from this passage that ______.

       A.Islamic artists have had to create architectural decoration with pictures of flowers or geometric (几何的) forms

       B.history teachers are more objective than artists

       C.it is more difficult to study art history than general history

       D.people and stories from the Bible were painted on churches and other buildings in order to popularize the Bible.

 0  32881  32889  32895  32899  32905  32907  32911  32917  32919  32925  32931  32935  32937  32941  32947  32949  32955  32959  32961  32965  32967  32971  32973  32975  32976  32977  32979  32980  32981  32983  32985  32989  32991  32995  32997  33001  33007  33009  33015  33019  33021  33025  33031  33037  33039  33045  33049  33051  33057  33061  33067  33075  151629 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网