________regular exercise is very important, it's never a good idea to exercise too close to bedtime.

A．If               

B．As  

C．Although        

D．Unless

C解析：第一個句子在說經(jīng)常鍛煉的好處，第二句子則說快要睡覺時鍛煉是不好的，由此可知二者之間存在轉折或讓步關系。if“如果”，引導條件狀語從句；as“當……的時候”，引導時間狀語從句，雖然as還有“雖然，盡管”的含義，可用來引導讓步狀語從句，但此時從句必須用倒裝，即把名詞、形容詞等提到as的前面；although“雖然，盡管”，引導讓步狀語從句；unless“如果不，除非”，引導條件狀語從句。句意：雖然經(jīng)常鍛煉是很重要的，但是快到睡覺的時間鍛煉絕不是一個好主意。故選C項。

練習冊系列答案
相關習題

科目：高中英語 來源： 題型：閱讀理解

Professor Martin's report says that children who attend a number of different schools, because their parents have to move around the country, probably make slow progress in their studies. There are also signs, says Professor Martin, that an unusually large number of such children are mentally affected.

　　The professor says, "It's true, my personal feeling is that children should stay in one school. However, our findings are based on research and not on any personal feelings that I or my assistants may have on the subject."

　　Captain Thomas James, an Army lecturer for the past 20 years and him self a father of two, said," I've never heard such rubbish. Taking me for ex ample, no harm is done to the education of my children who change schools regularly－if they keep to the same system, as in our army schools. In my experience, I've known quite a few of them－Army children are as well－adjusted（調(diào)整）as any others, if not more so. What the professor doesn't appear to appreciate is the fact that in such situations children will adapt（適應）much better than grown-ups."

　　When this was put to Professor Martin, he said that at no time had his team suggested that all such children were backward or mentally affected in some way, but simply that in their experience there was a clear tendency（傾向）.

　　"Our findings show that while the very bright child can deal with regular changes without harming his or her general progress in studies, the majority of children suffer from constantly having to enter a new learning situation."

　　1．According to this passage, Professor Martin's personal feeling_______.

　　　　A. is the opposite of what his report has shown

　　　　B. is in a way supported by his research

　　　　C. has played a big part in his research

　　　　D. is based on his own experience as a child

　

　　2．From the passage, we can conclude that Captain James's children_________.

　　　　A. have been affected by changing schools

　　　　B. go to ordinary State schools

　　　　C. can get used to the Army school education

　　　　D. discuss their education regularly with their father

　　

　　3.About children and grown-ups, Captain James says that children______.

　　　　A. are generally well-adjusted

　　　　B. are usually less experienced

　　　　C. can adapt much more easily

　　　　D. can deal with changes quickly

　　

　　4．According to Professor Martin, _________ suffer from changing schools regularly.

　　　　A. Army children

　　　　B. quite a few children

　　　　C. bright children

　　　　D. few children

 

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

Text-messaging, the shorthand language favored by teenagers has started to push aside

traditional grammar among high school English learners.

   Today's teenagers are 10 times more likely to use non-standard English in written exams than before. They use informal words, phrases and text messages such as "m8" for "mate", "2"instead of "too" and "u" for "you".

   This language has made it into classrooms. School children are now handing in essays（短文） written in text messages.

   Educators say abbreviated words are fine for text messages on the mobile phone, but in school essays, it only shows the laziness of today's youth. They argue that the use of these shortened forms allows the users to avoid having to spell and use the language correctly.

   Despite this, a two-year study by Cambridge University has found that today's teenagers are using far more complex（復雜的） sentence structures, a wider vocabulary and a more ex-act use of capital letters, punctuation and spelling. The quality of writing has also improved, said Alf Massey, head of the department of Cambridge University that carried out the study. But phrases that may not have been acceptable to examiners have come into regular use gradually.

   Barry Spur, a senior lecturer in English at the University of Sydney, said it was no surprise to learn that students were using the shorthand language in their studies as a move away from the formal use of English.

    Spur said the real test was whether teenagers stuck to using informal words and phrases and text messages when they were writing something they knew required a more formal use of English.

    He also questioned whether the shorthand really did lead to greater cleanness of language or whether it was simply faster.

1．What do many teenagers prefer to use in written exams?

A． Formal words.                         B． Non-standard English.

C． Traditional grammar rules.              D． Numbers and letters.

2．Which of the following is tree according to the passage?

    A． Alf Massey was the head of Cambridge University.

B． The teenagers have improved the quality of writing.

C． Barry Spur was a senior lecturer in English in Cambridge University.

D． The study was carried out for three years.

3．The exact meaning of the underlined word．" abbreviated" in Paragraph 4 is     .

A． written        B． enlarged        C． shortened        D． spoken

4．The main idea of the passage is __

A． teenagers like to use text messages

B． text-messaging enters classrooms

C． mobile phone shorthand also belongs to formal essays

D． the usage of text messages shows the laziness of today's youth

查看答案和解析>>

同步練習冊答案