问题 填空题

如图为心脏结构图,请你回答:

(1)体循环的起点是______.肺循环的终点是______.

(2)图中保证血液按一定方向流动的结构是______.

(3)小明同学不小心被狗咬了,医生通过上肢手腕静脉注射狂犬病疫苗,该药物最先到达心脏的______,穿过心脏______次.

答案

(1)如图所示:体循环的起点是左心室.肺循环的终点是9左心房.

(3)心房与心室之间、心室与动脉之间,都有能开闭的瓣膜,这些瓣膜只能向一个方向开,房室瓣只能朝向心室开,动脉瓣只能朝向动脉开.这样就保证了血液只能按一定的方向流动,而不能倒流.图示中的10是房室瓣,1是动脉瓣.

(4)在上肢手腕静脉注射狂犬病疫苗,疫苗随血液流动的途径是:上腔静脉→右心房→右心室→肺动脉→肺部毛细血管→肺静脉→左心房→左心室→主动脉→各级动脉→伤口处毛细血管,因此最先到达右心房,经过了心脏两次.

故答案为:(1)11左心室;9左心房

(2)1动脉瓣、10房室瓣

(3)3右心房;2

单项选择题
阅读理解

D

The following are the world-renewed attractions in London, so don’t miss them while touring there.

Shakespeare’s Globe

Shakespeare’s Globe, which officially opened in 1997, is a reconstruction of the Globe Theatre, built in 1599, and brings Shakespeare’s world to life. As a visitor to the exhibition you’ll discover how shows were produced in the theatres during Shakespeare’s time. The guide-storytellers take you on a fascinating half-hour tour.

Price: Adult £9.00;Child(5-15) £6.50;  Student £7.50;  Under 5 FREE.

The Tower of London

The tower, nearly 100 feet high, with walls 15 feet thick, was built in the early 1080s. King Henry Ⅲ made this tower his home. King Edward V and his younger brother were murdered inside by their uncle. Queen Elizabeth I was shut up in the tower for two months by her half sister Mary who felt that her throne(王位)was being threatened(威胁). In 1603, part of the tower became a museum.

Price: Adult £16.50; Child (5-15) £9.50; Under 5 FREE; Student £13.50; Family (two adults with three children) £46.00.

Banqueting(宴会) House

Banqueting House is the remains of Whitehall Palace which was built in 1529 and was home to the English kings. It was destroyed by fire. Famous for its architecture and painting, the building is also known for being the scene of Charles I’s execution(处决)。

Price: Adult £4.50; Child £2.25; Student (with ID) and senior citizen (60+) £3.00; Under 5 FREE.

Tower Bridge Exhibition

Tower Bridge has stood over the River Thames in London since 1894 and is one of the finest, most recognizable bridges in the world. At the Tower Bridge Exhibition you can enjoy breath-taking views from the high-level walkways and learn about the history of the bridge and how it was built. You can then visit the Victorian engine rooms, home to the original steam engines that used to power the bridge.

Price: Adult£6.00; Child (5-15) £3.00; Under 5 FREE; Senior citizen(60+) £4.50; Student£4.50.

53. Which of the following places has the longest history?

A. Whitehall Palace.                      B. The Globe Theatre.  

C. The Tower of London.                  D. Tower Bridge.

54. If two parents with their 4-year-old son visit the Tower of London, they should pay      .

A. £33           B. £43              C. £46               D. £52

55. Queen Elizabeth I was shut up in the tower for two months by Mary mainly because        .

A. Mary didn’t like her                    B. she tried to steal Mary’s treasure

C. Mary feared she would become the Queen  D. she intended to murder Mary

56. How many places used as a king’s home are mentioned in this passage?

A. One.           B. Two.               C. Three.             D. Four.