问题 选择题

哺乳动物运动系统的组成中不包括(  )

A.骨

B.关节

C.骨骼肌

D.神经纤维

答案

哺乳动物的运动系统由骨骼和肌肉组成.骨骼是由多块骨连接而成.

骨和骨之间的连接叫骨连接.有的骨连接是不能活动的,如脑颅骨各骨之间的连接;有的稍微能活动,如椎骨前方椎体间的连接;还有一种是能活动的,即一般所说的关节,如上肢的肩关节、肘关节,下肢的髋关节、膝关节等.关节是骨连接的主要形式.

骨骼肌两端较细呈乳白色的部分是肌腱(属?于结缔组织),分别附着在相邻的两块骨上,中间较粗的部分是肌腹,主要由肌肉组织构成,外面包有结缔组织膜,里面有许多血管和神经.能够收缩和舒张.

故选:D

阅读理解

Reading comprehension.

     My father was chief engineer of a merchant ship, which was sunk in world war. The book night of the

U-boats told the story.

     Memories

     In September, 1940, my mother, sister and I went to Swansea, where my father 's ship was getting ready

to sail,we brought him a family photography to be kept with him at all times and keep him safe.

     Then I remember my mother lying face down, sobbing. She had heard from a friend that the ship had

been sunk by a torpedo (鱼雷).

     I can remember the arrived of the telegram (电板), which in those days always brought bad news. My

grandmother opened it, it read, safe. love dad."

     My most vivid memory is being woken and brought down to sit on my father's knee, his arm in a bandage.

     He was judged unfit to return to sea and took a shore job in Glasgow for the rest of the war, for as long

as I can remember, he had a weak heart,mother said it was caused by the torpedoes. He said it was because

of the cigarette, whichever, he died suddenly in his early 50s.

     Ten years later I read night of the U-boat and able to complete the story.

     A toast 

     In my room there is the book and the photograph. Often, glass in hand, I have wondered how I would have

dealt with an explosion, a sinking ship, a jump into a vast ocean and a wait for rescue lest (以免) we forget  

I have some more whisky and toast the heroes of the war.

1. We can infer that the mother and children went to Swansea _____.

A. to meet a friend

B. to see the father

C. to take a family

D. to enjoy the sailing of the ship

2. What did the author learn about the father from the telegram?

A. he was still alive

B. his knee was broken

C. his ship had been sunk

D. he had arrived in Glasgow

3. The underlined word "it" in paragraph 6 refers to the father 's _____.

A. weak heart

B. taking a shore job

C. failure to return

D. injury caused by a torpedo

4. What can we know about the author 's father after his ship was attacked?

A. He lost his arm.

B. He repaired the engines.

C. He managed to take a lifeboat.

D. He was the last to leave the ship.

5 What is the passage mainly about?

A. A group of forgotten heroes.

B. A book describing a terrifying battle.

C. A ship engineer's wartime experience.

D. A merchant's memories of a sea rescue.

单项选择题