We are expected to be responsible for our work．But there always are some people who fail toperform their duties．题目和参考答案——青夏教育精英家教网—

题目内容

14．We are expected to be responsible for our work．But there always are some people who fail toperform （履行）their duties．

分析我们应该忠于职守．但是总有一些人不履行自己的职责．

解答答案：perform．
分析句子的结构可知，这是but连接的并列句．后面的句子中包含一个who引导的定语从句，fail to do表示没能够做到某事，根据汉语提示可知答案为动词perform．

点评翻译填空题考查的是词汇的记忆和运用能力，平时要注意积累和运用．

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4．I've often wondered how exactly sleep，or lack of it，can have such an awful effect on our bodies and，guess what，how much we sleep switches good genes（基因） on and had genes off．
In the first half of 2013，the Sleep Research Centre at the University of Surrey found a direct link between hours spent sleeping and genes．Every cell in our bodies carries genetic instructions in our DNA that act as a kind of operating handbook．However，each cell only"reads"the part of this handbook it needs at any given moment．
Can sleep affect how a gene reads instructions？It's a question asked by Professor Derk-Jan Dijk at the University of Surrey．He set up an experiment and asked his volunteers to spend a week sleeping around seven and a half hours to eight hours a night and the next sleeping six and a half to seven hours．
Blood samples were taken each week to compare which genes in blood cells were being used during the long and short nights．The results were rather surprising．Several hundred genes changed in the amount they were being used，including some that are linked to heart disease，cancer，and Type 2diabetes．Genes to do with cell repair and replacement were used much less．
Sleep restriction（six and a half to seven hours a night） changed 380genes．Of these，220genes were down regulated （their power was increased）．Those affected included body-clock genes which are linked to diabetes（糖尿病）．One of the most downgraded genes is that which has a role in controlling insulin（胰岛素） and is linked to diabetes and insomnia（失眠）．The most upgraded gene is linked to heart disease．
So changing sleep by tiny amounts can upgrade or downgrade genes that can influence our health and the diseases we suffer from when we sleep too little．
The important message is that getting close to eight hours of sleep a night can make a dramatic difference to our health in just a few days through the way it looks after our genes．
28．What kind of relation is directly discussed in the passage？A
A．Sleeping hours and changes of genes．
B．Sleeping hours and diseases．
C．Changes of genes and diseases．
D．Genes and health．
29．What can we learn about Professor Derk-Jan Kijk's experiment？C
A．The experiment was carried out to find the answer to how genes affect sleep．
B．The experiment took a period of more than two weeks to reach a conclusion．
C．His volunteers were divided into two groups with two different sleeping patterns．
D．Blood samples of the volunteers were checked afterwards to decide how many genes changed in sleeping．
30．Which of the following may be concluded from the passage？C
A．The experiment was performed at the University of Surrey in early 2013．
B．Body-clock genes are associated with heart disease，cancer and Type 2diabetes．
C．Sleep restrictions may contribute to disease like diabetes，insomnia，and heart disease．
D.7.5-8hours'sleep pattern makes little difference compared with 6.5-7hours'sleep pattern．
31．Which of the following can be inferred from the findings of the sleep research？D
A．When there is a sleep restriction，genes to do with cell repair and replacement function less．
B．In a sleep，several hundred genes change in the amount．The more changes，the worse results．
C．When genes are up regulated，they do good to health； when genes are down regulated，they do harm to health．
D．Eight hours of sleep a day can be beneficial to our health in that it looks after our genes．

5．-Hello．May I speak to Bill，please？
-__________．（　　）

	A．	Bill speaking		B．	I'm Bill
	C．	You are speaking to Bill		D．	I'm speaking

2．Riding camels across the desert is very difficult for us．The sun is baking the ground，because there are no clouds to block it．Suddenly，with a strong wind （61）blowing（blow） the sand around us，we feel temporary blindness．After the sandstorm is over，we can no longer recognize （62）wherewe are going．Tired，thirsty and （63）covered（cover） with sand，we have no choice but （64）to keep（keep） pressing our camels to walk on．After the sun goes down，we set up our tents for the night．（65）Since/As/Becausethere are no clouds to keep heat from escaping into the atmosphere，the temperature（66）varies（variety）a great deal between day and night．We continue our journey the next morning，（67）hoping（hope） that we will have better luck to find an oasis（绿洲）．Then，suddenly we see in front of us （68）is
a blue lake surrounded by tall trees．We urge our camels to walk even （69）faster（fast）．Yes!This is an oasis!We （70）are saved（save）!

9．NBA basketball players devote much of their lives to preparing for games．This preparation，which includes studying game films，practicing skills and treating injuries，is essential because of the pressure-packed nature of their profession．
（36）GGenerally，on the day of a game，players get together in the morning for an hour shooting and also to review films of the opponent of that night．（37）F Players receive treatments for injuries，put on their uniforms，discuss strategies（策略） with coaches and warm up during the remaining time before the game gets underway．As thousands of people cheer them on，a team's best players will play 40 or more minutes during the game．After the game，some players stick around to lift weights before showering and heading home．
（38）A They must leave their families at home，spend hours on planes traveling around the country and try to stay rested while sleeping at a different hotel every night．
The NBA's 82-game regular season is tiring．（39）C So many players focus on recuperating（恢复） for at least part of the off-season．Other players，may work on recovering from surgery to correct injuries．
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A．Trips can be difficult for NBA basketball players．
B．The league was founded in New York City on June 6，1946．
C．It can even make the best-conditioned athletes tired．
D．It consists of 30 teams，29 in the US and 1in Canada．
E．The preparation may involve practicing basketball skills and lifting weights．
F．Following lunch，many players take a nap and eat a pre-game meal before arriving at the field．
G．An NBA basketball player's typical workday routine varies based on his team's schedule of games．

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6．-Was the proposal passed at yesterday's meeting？
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