问题 单项选择题

患者,男性,50岁。突发胸痛2h急诊。初步诊断为主动脉夹层。平时血压正常,而此时血压高达29.3/14.7kPa(220/110mmHg),降压药物的治疗效果不佳,其原因可能为:()

A.疼痛引起的应激

B.主动脉夹层本身引起

C.急性肾梗

D.动脉外膜破裂

E.休克

答案

参考答案:C

阅读理解

阅读理解。

     Teaching children to read well from the start is the most important task of elementary schools. But relying

on educators to approach this task correctly can be a great mistake. Many schools continue to employ

instructional methods that have been proven ineffective. The staying power of the "look-say" or "whole-word"

method of teaching beginning reading is perhaps the most flagrant example of this failure to instruct effectively.

     The whole-word approach to reading stresses the meaning of words over the meaning of letters, thinking

over decoding, developing a sight vocabulary of familiar words over developing the ability to unlock the

recommended by advocates of"open" classrooms and with the concept that children have to be developmentally

ready to begin reading. Before 1963, no major publisher put out anything but these"Run-Spot-Run" readers.

     However, in 1955, Rudolf Flesch touched off what has been called "the great debate" in beginning reading.

In his best-seller Why Johnny Can't Read, Flesch indicted(控诉)the nation's public schools for miseducating

students by using the look-say method. He said - and more scholarly studies by Jeane Chall and Rovert Dykstra

later confirmed - that another approach to beginning reading, founded on phonics, is far superior.

     Systematic phonics first teaches children to associate letters and letter combinations with sounds; it then

teaches them how to blend these sounds together to make words. Rather than building up a relatively limited

vocabulary of memorized words, it imparts a code by which the pronunciations of the vast majority of the

most common words in the English language can be learned. Phonics does not devalue the importance of

thinking about the meaning of words and sentences; it simply recognizes that decoding is the logical and

necessary first step.

1. The author indicts the look-say reading approach because ______.

A. it overlooks decoding

B. Rudolf Flesch agrees with him

C. he says it is boring

D. many schools continue to use this method

2. One major difference between the look-say method of learning reading and the phonics method is ______.

A. look-say is simpler

B. Phonics takes longer to learn

C. look-say is easier to teach

D. phonics gives readers access to far more words

3. The phrase "touch-off" (Para 3, Line 1) most probably means ______.

A. talk about shortly

B. start or cause

C. compare with

D. oppose

问答题 简答题