钢的主要组成元素是碳和（）。

市场中设计呈现出哪些状态？

该图表示某地区的能源消费结构，这种能源消费结构易引发的环境问题是

①大气污染　 　②土壤污染严重    ③土壤肥力下降 　 ④水体污染严重

A．①②

B．①③

C．②③

D．②④

按要求回答问题。

　　“生物入侵者”在给人类造成难以估量的经济损失的同时，也对被入侵地的其他物种以及物种的多样性构成极大威胁。二战期间，棕树蛇随一艘军用货船落户关岛，这种栖息在树上的爬行动物专门捕食鸟类，偷袭鸟巢，吞食鸟蛋。从二战至今，关岛本地的11种鸟类中已有9种被棕树蛇赶尽杀绝，仅存的两种鸟类的数量也在与日俱减，随时有绝种的危险。

（1）文段说明的主要内容是：__________________________________________

（2）文段主要运用的两种说明方法是：__________________________________

My son. The phrase felt difficult and strange the first time I said it, and I had to practice it a thousand times． I started saying the words to myself the day when the ultrasound told me we were having a baby．

Finally, my son was born.

The nurse came out of the delivery room, holding a tiny, howling human being wrapped in a white sheet, his small hands and delicate fingers shaking nervously. “Baby Sanchez?” she asked, looking at the room full of expectant fathers.

I stood up, holding my breath． She showed me my baby． “My son,” I whispered. The little guy screamed, “waaaaaaaaaah.”

But in my heart I heard him cry out, “Daaaaaaad!” I don’t care if everyone in the room will swear they didn’t hear my baby say that. I called him, “My son,” and he called me “Dad,” and that’s that.

People ask me, “What did you feel at that moment?” I can’t even begin to answer. I’m a writer yet I try hard to find the right words. Joyful isn’t powerful enough. Bliss(狂喜) is not sweet enough. Peaceful isn’t calm enough. Happy isn’t tense enough.

After my son was taken away to the nursery, I sat down and shut my eyes. But tears escaped them away. Then out of the blue, my 80-year-old father entered, and we embraced.

“Dad,” I whispered.

“My son,” my heart heard him saying.

Suddenly the past 33 years folded into the present and I was now the baby bundled in white, with my father standing over me.

“My son,” I imagined him saying.

“Daaaaaaaaaad!” I cried my little lungs out.

At that point, I knew I was going to be a great father. The old man in front of me seemed to agree. He smiled and we walked out of the room in search of the tiny human being that would change our lives for ever.

小题1:Which of the following statement is TRUE according to the passage?

A．His son called him “Dad” when the writer called him “My son”．

B．All the people didn’t hear the baby say except the writer．

C．Sanchez is the writer’s family name．

D．The baby was taken away because the nurse found there was a mistake．小题2:The author couldn’t tell how he felt at the moment because ________．

A．he was a writer

B．he was too excited

C．he was too nervous

D．it’s a feeling too complex to express小题3:We can learn the following from the passage EXCEPT that ________．

A．the author got his first baby

B．he probably had a lung disease

C．the author didn’t really hear “Daaaaad” from his baby

D．the baby would change the author’s life小题4:Why was the writer sure he was going to be a great father?

A．Because his son is so gifted．

B．Because he had much experience in bringing up children．

C．Because his father promised to help him．

D．Because his father had already set him a good example．

中等学校教师一般性职业能力包括哪些能力？