There are several reasons why school uniforms(校服)are a good idea.First of all,uniforms help the school look smart.The students feel that they belong to a particular group.When every pupil in the school wears the uniform, nobody     1     (have)to worry about fashion(时尚).Everybody wears     2     same style of clothes.Uniforms can be useful in unexpected ways.A school in Ireland has introduced an interesting new uniform.On the edge of the jacket,there is a piece of cloth     3     gives off light in the dark.When the children are walking or     4     (cycle)to school on dark mornings,car drivers can     5     (easy)see them.

But can uniforms help improve school standards?The answer     6     this question is not clear.One study in America found that students’ grades improved a little after the school     7     (introduce)uniforms.But some students didn’t want     8     (wear)the uniform.Other American studies showed no     9     (connect)between uniforms and school performances.School uniforms are     10     (tradition)in Britain,but some schools are starting to get rid of them.Some very good schools don’t have a uniform policy.However,uniforms are still popular.Pupils at about 90 percent of British secondary schools wear uniforms.

Do you know about Dolly, a famous sheep? She was created by cloning more than fifteen years ago in Scotland. Cloning is famous throughout     1     world. It is a process     2    (use) to make an animal that is exactly like its parent. So far, scientists     3     (clone) rabbits, sheep, cows, mice, pigs and some other animals.

But what makes cloning possible? It’s DNA. There is DNA in most living things,     4     (include) human beings. Your DNA is the same in every part of your body. For example, your fingernails have the same DNA as your hair. You have your own DNA,     5     is similar to your parents’, but not the same. However, Dolly’s DNA is the same as     6     of the sheep she was cloned from.

There's no doubt that cloning can help save those animals in danger. It can also be     7     (benefit) to human beings.     8     its help, scientists are able to explore more ways to treat many serious diseases. However, cloning could be used in some ways to harm     9     (social), too. So I wish all governments     10    (can) make laws to make sure it can be used properly.

Melodious, exquisite and sentimental. With these romantic features, Kunqu Opera is regarded     1     one of the most loved art forms in China.

Born in Suzhou, East China’s Jiangsu province, Kunqu Opera distinguished itself by the great skill of its rhythmic patterns and enjoyed wide     2    (popular) during the Ming Dynasty (1368-1644). During the Mid-Autumn Festival in Ming and Qing dynasties (1644-1911), opera troupes often gathered in Suzhou,     3    (stage) theatrical shows in ancient China.

Combining songs performed in the Suzhou dialect, graceful body movements, martial arts and dance, Kunqu Opera     4    (use) an endless variety of movements to express specific     5    (emotion). Elegant movements animate the fingertips and special melodies bring     6     unique and poetic world to mind.

Kunqu Opera had a     7    (power) influence on many forms of opera in China thereafter, including Peking Opera,     8     is about 200 years old. It is hence known as the mother of all Chinese operas.

As an authentic and typical example of Chinese culture, stories     9    (perform) in Kunqu Opera have gone beyond time and space. The Peony Pavilion, written by playwright Tang Xianzu, who is often compared to Shakespeare, is still loved by fans from around the world.

A living heritage is an endless dialogue between the present and the past, and Kunqu Opera is a carrier whose goal is     10    (pass) that legacy (遗产) on.