问题 填空题

鸟的受精卵在母体内一般已经开始发育,但产出后就停止发育,原因是外界(  )

A.具有强烈阳光

B.具有太大的风

C.具有太高的温度

D.具有太低的温度

答案

鸡经过求偶成功,公鸡和母鸡交配后,精子与卵细胞在母鸡体内结合形成受精卵,鸡的受精卵在母鸡体内就已经开始发育,产出后,由于体外的温度太低,需在由母鸡的孵化才能继续发育,因此鸡的生殖和发育特点是体内受精,体内发育.

故选:D

阅读理解

He was struggling(费劲) to tie his shoes. I was struggling with whether I should help him.

I did, and he was grateful.

“Thank you,” he said.

“I’m glad I could help. I just thought it would be easier for me to reach,” I said.

He was a disabled man, and forced to look down most of the time. His arms and legs were twisted(扭曲的) terribly, and he couldn’t do what the rest of us would consider easy tasks. He always managed to look up to see how you reacted(反应) to his words, however. He had a big smile, making me feel comfortable.

I was still on my knees by his wheelchair.

“ Nice shoes,” he said.

“Thanks. No one ever complimented me on them before,” I said.

“No one has the same view of the world as I do,” he replied.

“Tell me about the world as you see it,” I said smiling.

“Most people can see if someone is comfortable with them or not in their eyes. I see it in their feet.” he said. “If people keep moving their feet, I just let them go, because I know they’re impatient with me. I don’t want to make people uncomfortable.

“What about me? I asked.

“I could see your compassion. And then you came down to my level. I was the one who was nervous.” he said. “I don’t normally have someone look me in the eye.”

“They don’t know what they’re missing,” I told him.

“My old face is nothing to brag(自夸) about.” he said.

“But that smile is so big.”

Yes, and it’s not only a big smile but an attitude.

小题1:The disabled man knew people were impatient mostly by their _________.

A.words

B.eyes

C.feet

D.smile小题2:The unlined word compassion is the closet in meaning to ___________.

A.attention

B.pity

C.trust

D.duty小题3:We learn that the disabled man _________.

A.had great difficulty looking after himself

B.always asked people for help

C.couldn’t have a big smile

D.liked to talk about people’s shoes小题4:The writer felt comfortable because _________.

A.he had a nice talk to the man

B.the man looked him in the eye

C.he didn’t move his feet before the man

D.the man had a big smile on the face小题5:We can infer from the passage that _________.

A.the disable man had something wrong with his mind

B.not many people went down to the man’s level

C.the man was good at telling people about the world

D.the writer would not give the man move help

单项选择题