问题 阅读理解

Here is an examination notice. Mrs. Dickson gave it to her students last week. Read it and answer the questions.

To the students of Class 3

◆Examinations start on June 22 and end on June 23.

◆The time for each of the subjects is:

English   June 22     9:30 A.M.- 10:30 A.M.

Math     June 22     11:00 A.M.- 12:00 A.M.

History   June 22     2:30 P.M.- 3:30 P.M.

PE       June 23     8:00 A.M. - 10:00 A.M.

Music    June 23     1:00 P.M. - 3:00 P.M.

◆For the PE test, go to the playground. For the music test, go to the Piano Room. All else are     written(书面) tests. They will be held in classroom 3.

◆No student can get into the examination room more than 15 minutes after the exam starts.

◆No food or drink during ANY test.

◆No dictionaries during the English exam.

◆Wear sports shoes and clothes for the PE exam.

If you have questions, go to the Teachers’ Office before the tests.

小题1:How many written tests will the students get ready for?

A.Two

B.Three

C.Four

D.Five小题2:Who could not take the English exam?

A.Nancy. She wore her sports shoes on June 22.

B.Richard. He did not have breakfast before the exam.

C.Wendy. She forgot to take an English dictionary with her.

D.Tony. He went to school at 9:50 on the morning of June 22.小题3:Where were the students of Class 3 at 8:30 A.M., June 23?

A. In the playground.                        B. In their classroom.

C. In the Piano Room.                      D. At the Teachers’ Office.

小题4:On the morning of June 23, What should Helen, a student of Class 3 get ready for?

A.Food and drinks. Because there is no food or drinks during any test.

B.Dictionary. Because she isn’t good at English.

C.Sports shoes and clothes. Because there will be a PE exam.

D.Nothing. Because all the exams are ended.小题5:Tom still has some questions about the exams, he can       .

A.ask his teacher at any time

B.find his teacher in the playground

C.ask his teacher on June 22 or June 23

D.go to the teachers’ office on June 21 and ask about them

答案

小题1:B

小题2:D

小题3:A

小题4:C

小题5:D

题目分析:小题1:通过通知可以看出书面考试有English、Match和History三科。所以本题选B。

小题2:英语考试的时间是June 22  9:30 A.M.- 10:30 A.M.,Tony早晨9:50到校时,已经开考了。所以本题选D。

小题3:在六月23日上午8点30分时,正是考体育的时间,所以学生在操场上,所以本题选A。

小题4:在23日早晨,学生要考体育,当然要准备运动鞋和运动服了。可以看一下考体育的时间。所以本题选C。

小题5:A选项中,不可能任何时间都可以问;B选项没有指定时间,如果在考试中就不可以去问,而且地点也不符合逻辑;C选项在考试期间问老师也妥;所以应该在考试之前问老师,比较符合逻辑,所以本题选D。

点评:应仔细阅读,分析每个科目考试的具体时间,以及考试的注意事项。

单项选择题

阅读下面一段文字,完成下列4题。

①生物体都具有感觉器官,无论是感知物理信息抑或检测化学信息的这些自然感测器,都是生物体藉以获得生存必需信息的良好帮手。然而人要获得客观世界的大量信息,光凭人类自身的感觉器官是远远满足不了的,必须借助人造的各类感测器。

②科学家们首先想到的是存在于生物体内的2000多种不同的酶。由于在人体生命活动中担任催化剂作用的酶具有严密的对象选择性,即某一种酶只促成对应的某种对象的化学反应,科学家们就巧妙地设计出各种带不同酶的生物类化学感测器。为了克服酶会溶于水而不能反复使用的技术难题,他们又将酶涂布在高分子膜上,然后将这种带酶的膜放进所测试的采样中,催化受质(待测的特定化学物质)的化学反应。在膜附近产生或消耗的其他化学物质,通过膜上带有的碳电极测定化学物质的浓度变化,就能间接地计算出原受质的浓度。这样,只要使用不同的酶,便可制成测定各种不同化学物质的生物感测器了。

③这种生物感测器是高技术的结晶。它利用了先进的印刷和半导体加工技术。先在基板上印刷碳电极,再印刷附着特定酶的膜,之后裹上多孔的高分子膜,类似集成电路的制作。一般是在同一基片上制成大量感测元件,只要将它们切开,就能同时制成多枚生物感测器。

④如今科学家已不满足于上述利用物质电特性制成的生物感测器,他们又投入以物质的光特性为基础的光纤传感类的新型生物感测器的研制,并将其广泛应用于各个领域。

第二三自然段说明的要点是()。

A.人造生物感测器研制的机理、技术难题和具体程序

B.人造生物感测器研制的技术难题和具体程序

C.人造生物感测器研制的程序

D.人造生物感测器研制的机理

多项选择题