考点1　　冠词的用法
单句填空
　　阅读下列句子,按照句子的语法结构并结合句意,在空格处填入适当的冠词(a，an,the)。
1.This excellent book will be________welcome addition to the library of any student.
2.He was driving at 50 miles________hour.
3.He has the ability to bring out________best in others.
4.Take________umbrella with you. It's a useful tool on rainy days.
5.Try to set aside a few hours________week for exercise.
6.She always takes________active part in school life.
7.We need________big win to boost our confidence.
8.The police are appealing to________public for any information about the missing girl.
9.I think English is not only________useful language but also an important language.
10.A physician and an engineer were arguing about what was________oldest profession in the world.
11.I must make________apology to him for not going to his party yesterday.
12.By the time he was a teenager, he had already enjoyed________reputation as a wonderful young musician.
13.Sports have become________important form of entertainment, appealing to all students.
14.Many passers - by dropped coins into the hat, whose owner was blind, playing________guitar by the side of the street.
15.The art festival is________annual event where students can show off their talents.
16.She was asked back for________second interview because she was considered to have a good command of the company culture.
17.Today________number of people learning Korean in China is increasing quickly.
18.________number of measures have been taken by the government in order to stop pollution.
19.China's food production has grown faster than consumption over________past few years.
20.Steve lives in________European country, and he teaches in a university there.

　　阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
　　The Palace Museum's clock collection, more than 1500 in number, is arguably one of the most breathtaking clock preservations worldwide.　　21　　(make) between the 18th century and the 20th century, some were crafted in Britain, France and Switzerland, some were from the Clock Workshop of the Qing Palace, and others were　22　mixture of both the East and the West.
　　The　23　(major) of British clocks feature bronze cases inlaid with splendidly colorful jewels. They are diverse　24　form, recreating all kinds of architecture and natural sights, and often include automatic　25　(decorate) such as fountains, moving figures, boats and birds. These clocks represent the highest level of craftsmanship in Britain.
　　Most of the French clocks here are the products of the early 20th century. Whether in terms of theme 26　decorative style, the French clocks in the collection have a style of　27　(they) own, and deserve their place in history.
　　The Swiss time pieces　28　(most) comprise small, unconventionally shaped desk clocks and delicate pocket watches. They were specially made　29　(suit) the tastes of Chinese customers.
　　
Clocks may turn back in time, but humans may never dream of doing so. Today, the Palace Museum 30　(aim) to carry on this touching tale of “time” as guardians of this traditional craftsmanship.