As Sam slowly woke, he got a funny feeli

题型:阅读理解

问题:

As Sam slowly woke, he got a funny feeling in his stomach. He knew he would have to do something that he had been afraid to do for a long time.

The school bus came on time, and he sat with his friend, Billy. They chatted about baseball. It was a great way to get his mind off what he had to do later. As they got close to the school, he could feel his heart beating. His hands were starting to sweat. He hated this!

He entered Mrs. Owen’s class. She was smiling, and saying hello to all her students as she did every morning.

“Hi, Sam!” she said as he walked in.

“Hi,” he said and quickly sat in his seat. Then the class began to take their spelling test. He looked at the clock. The time was near. He hoped he was not first! Mrs. Owens said it was time to begin their special day.

“Sam, you’ll be first.” Mrs. Owens said to the class, “Sam has worked very hard on his report on Hawaii, and I know it is very interesting.”

Sam nervously greeted his class. Then, he thought about the fun things he had read about surfing, volcanoes, and pineapples in Hawaii, and he started to talk. He talked in front of the whole class, and it was fun. The class clapped as he finished and Mrs. Owens was smiling. It wasn’t terrible at all and he knew he would do better the next time.

小题1: How did Sam feel after he woke?

A.Excited.

B.Nervous.

C.Happy.

D.Hungry.小题2:What did Sam have to do that day?

A.To have a baseball match.

B.To take a reading test.

C.To go to a new class.

D.To do something special.小题3:What does the underlined word “sweat” probably mean?

A.触摸

B.鼓掌

C.出汗

D.指点小题4: Which could be inferred (推断) from this passage?

A.Sam hated chatting about baseball.

B.Sam learned about Hawaii by travelling.

C.Mrs. Owens is unfriendly to her students.

D.The class enjoyed Sam’s talk very much.小题5: Which is the best title for this passage?

A.A special day

B.An interesting lesson

C.A nice teacher

D.A professional report

考点:日常生活类阅读
题型:阅读理解

时域掩蔽是指掩蔽效应发出的掩蔽声与被掩蔽声不同时出现,又称异时掩蔽。( )

题型:阅读理解

(8分)在2 L密闭容器内,800 ℃时反应2NO(g)+O2(g) 2NO2(g)(正反应为放热反应)体系中,n(NO)随时间的变化如下表:

时间(s)012345
n(NO)(mol)0.0200.0100.0080.0070.0070.007
 (1)如图中表示NO2变化曲线的是    .用O2表示从0 s~2 内该反应的平均速率v    . mol/(L·s)

(2)能说明该反应已达到平衡状态的是    .

a.v(NO2)=2v(O2)   b.容器内压强保持不变

c.v(NO)=2v(O2)  d.容器内密度保持不变

(3)能使该反应的反应速率增大,且平衡向正反应方向移动的是    .

a.及时分离出NO2气体   b.适当升高温度

c.增大O2的浓度           d.选择高效催化剂

题型:阅读理解

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题型:阅读理解

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A.64TB和4GB

B.64GB和64TB

C.4GB和64TB

D.64TB和64GB

题型:阅读理解

水泥强度等级是以标准水泥砂浆试块,在标准条件( )下养护,测定其3天和 28天时的抗折强度和抗压强度来确定。

A.温度20±1℃湿度90%以上

B.温度22±1℃湿度95%以上

C.温度20±1℃湿度95%以上

D.温度22±1℃湿度90%以上

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