选出划线部分读音不同的一项( )A．catchB．centuryC．country 题目和参考答案——青夏教育精英家教网—

题目内容

14．选出划线部分读音不同的一项（　　）

A．

catch

B．

century

C．

country

分析选出划线部分读音不同的一项（　　）A．catch[k?t?]赶上．B．century[?sent?uri]世纪．C．country[?k?ntri]国家．

解答答案：B．考查语音．A．catch[k?t?]赶上．B．century[?sent?uri]世纪．C．country[?k?ntri]国家．A，C选项发/k/．B选项发/s/，因此发音不同的一项是B．

点评考查语音，此题型要掌握音标知识，积累一些字母组合音．还要注意一些固定的发音规则．然后结合语境，完成试题．

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5．

Biologists in Alaska are counting walruses （海象） in the Arctic  Ocean．The aim：to decide whether the walrus is an endangered species （物种）．
In 1990，biologists counted 201，039walruses in the Arctic Ocean．Now，over 20years later，it seems there are fewer．After three years of counting，the US Fish and Wildlife Service estimates that there are only 15，164walruses in the area．But，scientists say，"They've not finished counting．"
"We're still working on the final population estimate，"said Suzann．She is a wildlife biologist with the US Fish and Wildlife Service．
Endangered Species？
What's a possible reason for the lower walrus count？Brendan Cummings，a spokesperson for
the Center for Biological Diversity （多样性），thinks many walruses are dying．He believes global warming is melting the ice in the waters between Alaska and Russia．That's the area where most walruses live．However，they can't live without ice．
  But other scientists aren't so sure that the walruses are dying out．The US Fish and Wildlife Service biologist Doug Bum said，"We realized we were missing a lot of walrus groups．"So the walrus count goes on．The counting hasn't been easy．Scientists sometimes have to guess the number of walruses that are underwater．
US law requires scientists to count the walruses every three years．Then，if the mammals （哺乳动物） turn out to be an endangered species，they will be counted every year．

66、What's the purpose of counting walruses in the Arctic Ocean？．C
A、To study the living habits of walruses．
B、To show the bad environment of the earth．
C、To see whether the walruses belong to the endangered animals．
D、To see whether the Arctic Ocean is suitable for people to live in．
67、What does the underlined word"estimate"mean in Chinese？B
A、创造
B、估算
C、分析
D、制造
68、According to the US law，scientists will count the walruses every year if they areB．
A、missing
B、endangered
C、sold out
D、under the water
69、Which of the following statements is TRUE？D
A、The counting of the walrus is easy．
B、Brendan Cummings is a biologist of the US Fish and Wildlife Service．
C、In 1990，biologists counted only 15，164walruses in the Arctic Ocean．
D、Brendan Cummings believes global Warming makes the walruses fewer．
70、What is the best title of the passage？D
A、Global Warming
B、Protect the Animals
C、Biologists'Work
D、Worry about Walruses．

2．Many heart attacks （心肌梗塞） are not as easy to discover as shown on television．In fact，there are some people who present few or no symptoms （征兆） when they are having a heart attack．However，the common symptoms are chest pain （疼痛），shortness of breath，breaking out in cold sweat （汗）．Not getting to the hospital in time may result in death．
The symptoms of a heart attack are not as clear in women as they are in men．Women may experience breathlessness，fast heart beating，light-headedness，chest pain，neck and shoulder pain and unusual tiredness．Heart attacks with few or no symptoms seem to be more common in women than men．
The early warning symptoms of a heart attack usually last for at least 20minutes，during which women may experience one or more symptoms．These include：
Pain in chest
A heart attack usually causes discomfort or pain in the center of the chest，which lasts for more than 20minutes and is usually with a lot of cold sweat．The pain may come on suddenly，start slowly，develop over minutes，or come and go．Women usually have lighter chest pains and so may not take this symptom seriously．
Pain spreading
The chest discomfort may spread to the neck and throat，shoulders，the back，arms and even to wrists and hands．
Discomfort in the upper body
Some people don't get chest pain-only discomfort in parts of the upper body，including back or neck pain．There may be a feeling of choking （阻塞） in the throat，or the arms may feel heavy．
Unusual symptoms
There may be shortness of breath or some difficulty breathing，a cold sweat，or a feeling of being light-headed．
Lots of tiredness
A study of 515women found that the most common early warning symptom of a heart attack in women is unusual tiredness．
See a doctor if you experience one or more of such symptoms．If you think that you are having a heart attack，get help immediately．

53．Women should be more careful with heart attacks becauseD．
A．they are much weaker than men
B．a heart attack is more common in them
C．they don't take care of themselves
D．the symptoms are not so clear in them
54．What a heart attack symptom happens most probably in women，according to the passage？
C
A．Pain in the chest．
B．Shortness of breath．
C．Unusual tiredness．
D．Light-headed feeling．
55．Which of the following is not mentioned when a heart attack happens？B
A．You may have chest pain and cold sweat at the same time．
B．A bad headache may come on from time to time first of all．
C．Some may have pains in the back first instead of the chest．
D．A chest pain may appear suddenly and become worse slowly．

9．He has already found something unusual about the colourful birds．（改为否定句）
Hehasn't foundanything unusual about the colourful birds yet．

19．It is a blue bag．（改为复数句子）
Theseare blue bags．

6．Charles Dickens was a great English writer．He wrote many novels．

3．How could we tell time if there were no watches or clocks anywhere in the world？
The sun was probably the world's first"clock"，except in the far north，where the Eskimos （爱斯基摩人） live．There，it's dark most of the winter，and light most of the summer．But in most of the world，people used the sun for a clock．Even today，if you don't have a clock，you still know that when the sun shines，it's day，and when it's dark，it's night．The sun can also tell you if it's morning，noon，or afternoon．
People near the sea can tell time from the tides（潮汐）．In the daytime，for about six hours，the water rises higher and higher on the beach．And then it goes down and down for about six hours．The same thing happens again at night．There are two high tides and two low tides every 24hours．
Seamen on a ship learn how to tell time by looking at the moon and the stars．The whole sky is their clock．In some places in the world the wind comes up at about the same time every day or changes direction or stops blowing．In these places the wind can be the clock．
A sand（沙） clock is an even better clock．If you had fine dry sand in a glass，you would have what is called an hourglass．The sand in the hourglass goes from the top part to the bottom（底部） part in exactly one hour．When people turn over the hourglass，the sand will take another hour to go back again．

48．How many ways does the passage show us to tell time including the watches and clocks？C
A.8
B.7
C.5
D.4
49．The Eskimos in the far north can't use the sun for a clock becauseD．
A．They know very little about the sun
B．The sun there never goes down in winter
C．It's too cold for them to go out to watch the sun
D．It has long dark winters and long light summers
50．The writer thinksB．
A．there are no more than two tides in a day
B．a sand clock is a better clock than the tide
C．only the moon is a good"clock"for seamen
D．the wind can be a clock all over the world
51．In which column（栏目） of a newspaper can you most possibly read this passage？A
A．Science．
B．News．
C．Advertisements．
D．Sports．

4．Most of his money wasstolen （偷） by a thief last night．

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