阅读理解。 Dear Maria, So far it's been a gr

题型:阅读理解

问题:

阅读理解。

Dear Maria,

     So far it's been a great trip. We've had one flat, groups of mosquitoes (蚊子) , and not hot showers

for days! Three nights ago a rainstorm hit while we were sleeping in the tent. I woke up floating (漂浮)

on my air mattress (床垫) in four inches of water! We stayed in a motel (汽车旅馆) the next night so

our clothes could dry out, but I think my sleeping bag will stay wet for a long time. The strange thing is that I'm serious when I say it's a great trip. I miss the city, but I love waking up to the sound of whippoorwills

(夜鹰). Am I crazy?

     Mom, Dad, and I reached Kentucky a week ago and headed straight for the land between the

lakes. We found a campsite there and spent two lazy days swimming in Kentucky Lake. Then the

rainstorm hit, and we drove towards Mammoth Cave National Park. We've been staying here since

Friday. Yesterday we toured Mammoth Cave, which reminded me of the subway because it had miles

and miles of tunnels(隧道). The cave was uncomfortable, too, but in a different way from the subway.

It was cold and lonely instead of hot and crowded. Some parts were wonderful, though I especially liked

the Star Chamber, where white crystals(水晶) shine brightly on the cave ceiling like stars. I wish you

could have seen it.

     See you in two weeks. Maybe by then, my sleeping bag will be dry!

                                                                                                                                     Your friend,

                                                                                                                                         Alicia

1. Which of the following events happened first?

A. Alicia stayed in a motel.

B. Alicia toured Mammoth Cave.

C. Alicia reached Kentucky.

D. A rainstorm hit.

2. What did Alicia's family do as soon as they arrived at the land between the lakes?

A. They toured a cave.

B. They took the subway.

C. They swam in a lake.

D. They found a campsite.

3. Why did Alicia's family stay in a motel?

A. Because their camping equipment needed to dry out.

B. Because the motel cost less than a campsite.

C. Because their car had broken down.

D. Because they wanted hot showers.

4. How is Mammoth Cave different from the subway?

A. It has miles of tunnels.

B. It is cold and lonely.

C. It is uncomfortable.

D. It is crowded.

5. Which of the following is NOT true?

A. Although Alicia met much trouble, she still considered the trip a good one.

B. Alicia' family reached Kentucky before the rainstorm hit.

C. Maria had seen the white crystals in the Star Chamber before.

D. Both Mammoth Cave and the subway were uncomfortable according to Alicia.

考点:日常生活类阅读
题型:阅读理解

句型转换。

1. A. Because I was exhausted,I slid into bed and fell fast asleep.

    B.____I said into bed and fell fast asleep.

2.  A.  We didn't leave the station until we couldn't see the train.

     B.  We didn't leave the station until we_____ _____ ______the train.

3. A. The leaves provided the house with oxygen that was needed badly.

    B. The leaves provided the house with ______oxygen.

4.  A.  When it is seen from the top of the hill,our school looks more beautiful.

     B.  ______  _____the top of the hill,our school looks more beautiful.

5.  A. Though they had been wamed of the storm,the farmers were still working in the fields.

     B. ____ ____ ____ ____,the farmers were still working in the fields.

题型:阅读理解

有涡轮减速器的电梯用于梯速为( )以下的电梯。

A.3.0m/s

B.5.0m/s

C.6.0m/s

D.2.5m/s

题型:阅读理解

核酸探针指由人工标有特定标志物的单链核酸(DNA或RNA)片段,它能以碱基配对互补的方式与具有对应碱基序列的单链核酸结合,用来检测样品中的核酸与探针是否具有同源性,以及同源片段的大小。

关于寡核苷酸探针,叙述正确的是()

A.序列短,对碱基组成和探针结构要求不高

B.杂交时间长,杂交信号强

C.灵敏性和特异性都很高

D.可以用于点突变的检测

E.制备方法复杂,价格较高

题型:阅读理解

关于葡萄球菌肺炎下列哪项是错误的()

A.病原菌经呼吸道或由皮肤感染灶经血行到达肺脏

B.是急性肺部化脓性感染

C.可引起全身多发性化脓性病变

D.不易出现周围循环衰竭

E.确诊有赖于痰培养

题型:阅读理解

证券公司委托其他证券公司代为买卖证券的,属于操纵市场行为。( )

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