2.(南陽(yáng)期中)A.B.C.D是四種短周期元素,已知A.C同主族, A的氣態(tài)氫化物比C的氣態(tài)氫化物穩(wěn)定; B的陽(yáng)離子比D的陽(yáng)離子氧化性強(qiáng),若B的陽(yáng)離子比C的陰離子少一個(gè)電子層,下列比較不正確的是( C )
A.原子序數(shù):C>B>D>A
B.原子半徑:D>B>C>A
C.單質(zhì)熔點(diǎn):D>B,C>A
D.簡(jiǎn)單離子半徑:C>A>D>B
13.(南陽(yáng)期中)2004年,美國(guó)科學(xué)家通過(guò)“勇氣”號(hào)太空車探測(cè)出水星大氣中含有一種稱為硫化羰(化學(xué)式為COS)的物質(zhì),已知硫化羰與二氧化碳的結(jié)構(gòu)相似,卻能在氧氣中燃燒,下列關(guān)于硫化羰的說(shuō)法正確的是( D )
A.COS可用作滅火劑
B.CO2和COS都是非極性分子
C.COS的熔點(diǎn)可能比CO2的熔點(diǎn)低
D.1molCOS在O2中充分燃燒時(shí)轉(zhuǎn)移6mol電子
14.(南陽(yáng)期中)幾種短周期元素的原子半徑及主要化合價(jià)如下表:
元素代號(hào)
L
M
Q
R
T
原子半徑/nm
0.160
0.143
0.102
0.089
0.074
主要化合價(jià)
+2
+3
+6.-2
+2
-2
下列敘述正確的是( A )
A.R的氧化物對(duì)應(yīng)的水化物可能具有兩性
B.L.M的單質(zhì)與稀硫酸反應(yīng)的速率:M > L
C.T.Q的氫化物常態(tài)下均為無(wú)色氣體
D.L.Q形成的簡(jiǎn)單離子核外電子數(shù)相等
15.(南陽(yáng)期中)下列敘述正確的是( B )
A.分子晶體中一定存在共價(jià)鍵
B.F2.Cl2.Br2.I2的熔沸點(diǎn)逐漸升高與分子間作用力有關(guān)
C.含有極性鍵的化合物分子一定不含非極性鍵
D.只要是離子化合物,其熔點(diǎn)一定比共價(jià)化合物的熔點(diǎn)高
9.(豫南七校期末) F2和Xe在一定條件下可生成XeF2、 XeF4和 XeF6三種氟化氙,它們都是極強(qiáng)的氧化劑(其氧化性依次遞增),都極易水解。其中6XeF4
+12H2O==2XeO3+4Xe↑+24HF+3O2↑,下列推測(cè)正確的是( C )
In
a national spelling contest in America,
an 11 ? year ? old girl was asked to spell a certain word. But with her 36 voice the judges were not sure if she
spelled the word with the letter A or E. They talked it over and 37 decided to simply ask her what she had
said. By now, the girl knew she had 38 the word. But instead of lying, she told
the truth that she had said the 39 letter ? so she lost the contest.
As
the girl walked off the 40 ,the entire audience stood to their
feet clapping to applaud her 41 . Later, dozens of newspaper
reporters wrote about this 11 ? year ? old girl’s honesty, even when it 42 her the contest. But the fact is that she
43 the biggest contest that day: the contest
of her 44 .
20090309
It’s
so true that the choices you make today 52 what you are tomorrow. Our children will 53 our behavior much more than our advice.
So if we want them to 54 to be honest, we must show them the way
by being honest ourselves. Remember, out kids are 55 what we do and how we live even when we
don’t think they see or know.
Many
Chinese use instant messenger tools such as MSN or QQ, listen to music on MP3
players and log on the Internet using ADSL ? without knowing the literal
Chinese translation of the abbreviations (縮寫).
But
they don’t have to, as many English letters have become part of the local
lexicon(詞典).
A
dozen abbreviations including GDP, NBA, IT, MP3, QQ, DVD and CEO are among the
5,000 most-frequently used words in the Chinese-language media last year,
according to a report on the 2006 Language Situation in China, which was released yesterday in Beijing.
The
report said some parents are so keen on English letters that recently a couple
tried to name their baby “@”,claiming the character used in e-mail addresses
reflects their love for the child.
While
the “@”is obviously familiar to Chinese e-mail users, they often use the
English word “at” to pronounce it, which sounds something like “ai ta”, or
“l(fā)ove him”, to Putonghua speakers.
The
study collected more than 1 billion language samples from newspapers,
magazines, TV, radio and websites. The annual report is compiled(編輯) by the Ministry of Education and
the State Language Commission.
“Nowadays,
more and more English abbreviations are being used in Chinese, making them an
important part of the contemporary language,” said Hou Min, a professor at
Communication University of China.
“The
abbreviations have gained popularity because of the convenience of usage,” Hou
said.
For
example, DNA is much simpler to use than its Chinese version tuoyang hetang
hesuan.
“As
more Chinese people learn foreign languages, especially English, in recent
years, using abbreviations has become a trend among educated people,” she said.
Some
language scholars fear such usage will contaminate the purity of Chinese
and cause confusion in communication.
56.Why do so
many Chinese like to use English abbreviations?
A.Because they don’t have to know the literal Chinese translation.
B.Because that’s a better way to
learn English.
C.Because these abbreviations are
part of their local lexicon.
D.Because it’s convenient for them to
use the abbreviations.
57.A couple want
to name their child “@” because of its .
A.popularity B.pronunciation C.meaning D.usage
58.The
underlined word “contaminate” in the last paragraph probably means .
A.make impure B.smooth away C.make clear D.make up
59.The usage of
English abbreviations will be in
China.
A.limited by the Ministry of Education
B.encouraged by most language
scholars
C.more popular among educated people
D.officially forbidden by the
government
60.The passage
aims to tell us .
A.English abbreviations become
popular in China
B.English abbreviations will take the
place of Putonghua
C.The arguments about English
abbreviations
D.How we can use abbreviations
properly
A
couple of years ago, before a trip to China, Nicole Davis and her US women’s
volleyball teammates were warned about the prominence (顯著、突出) of coach “Jenny” Lang Ping in
her native country.
“I was pushed over by Chinese journalists
while I was just trying to put my luggage on the bus, ” said Davis.
Known
as the “Iron Hammer” for her punishing spikes (扣球), Lang made it possible for China to dominate in the sport in the
early 1980s. She was a key player on China’s 1984 Olympic gold medal
winning team.
When
the US team arrived for the
Olympics, Lang, 48, who is from Beijing,
had to take a different route to avoid crowd of reporters and fans.
Then
came the greatest moment to Lang: While the US team was playing in a packed
gym, at least 8,000 Chinese fans unfurled an American flag.
“That
really says it all,” Davis
said. “They look at her as an icon (偶像). I’m sure it’s hard for them to see her coaching another country,
but they love her so dearly that her success is their success.”
The
loyalty of the Chinese fans was tested on Friday, when China lost a match to the US.
“It’s
a pity that China lost the match, but I’m still glad that Lang Ping’s team won,
since she is the pride of China’s volleyball,” said Liu Chengli, a spectator.
“We also cheered for Lang’s victory.”
Lang
says she just tries to stay professional when the two teams meet. “It doesn’t matter
if we play China
or any other team. It’s the same.” Lang said.
Davis said she and her teammates could not have imagined
the passion for volleyball among Chinese because the sport was lack of
popularity in the US.
The reception from Chinese fans has touched the US
players, said US
volleyball player Lindsey Berg.
“It’s
such an honor to be here and play for our coach here in China,” she said. “The amount of
support that the Chinese give to her and us has been tremendous. The whole
event has been unbelievable.”
61.What’s the
passage mainly about?
A.Staying professional B.Cheering for the Iron Hammer.
C.A match between China and the US. D.Lang Ping’s career as a coach.
62.Lang Ping
avoided meeting the reporters and fans probably because she .
A.was afraid to be questioned about
her strategy
B.didn’t want to be paid much
attention to
C.disliked to be with her fans
D.didn’t want to disturb public order
63.What does the
underlined word “unfurled” exactly mean?
A.destroyed completely B.tore into pieces
C.spread out to the wind D.rolled up
64.What does
Lang Ping mean by saying “it doesn’t matter if we play China or any
other team.”?
A.American Volleyball Team will beat
any team.
B.Chinese Volleyball Team is the same
as other teams.
C.She just tries to stay
professional.
D.The results of each match will be
same.
65.What
impressed the US
team players most?
A.The tolerance of Chinese people.
B.The popularity of volleyball in China.
C.Lang Ping’s coaching skills.
D.The loyalty for volleyball of the
Chinese.
Do
you play a musical instrument? Would you like to share a stage with world ?
class famous composers (作曲家)? Do you dream of becoming the next Lang Lang? Now is your chance to
make it big in the classical music world, thanks to a video ? sharing website.
In
collaboration with(與合作) orchestras such as the London Symphony Orchestra, New York
Philharmonic and several others, the video-sharing site has launched the
“YouTube Symphony Orchestra Project.”
Billed
as the world’s first collaborative online orchestra, the site wants users to
submit videos showing their musical talent.
Beijing
Olympics theme music composer Tang Dun has written the audition(試聽(tīng)) piece. He told the BBC his
latest composition was inspired by walking around the streets of New York and hearing the
sounds of mechanics.
The
internet is an invisible Silk Road, joining
people across the world. Anyone can download a score of my Internet Symphony
No. 1 ‘Eroica’, pick any part of it and play it with any instrument or object,
in any style, he said.
In
addition to Tan Dun’s piece, users will also have to perform a famous classical
piece of their choice showing their musical and technical abilities. A team of
experts will then whittle(減少) the field down to a shortlist of semi-finalists who will then be
voted on by YouTube viewers.
The
competition hopes to inspire musicians from all over the world. Music means so
much to different people, in different countries. It's not just about the note
of music, it’s about discovery, said the music director of the San Francisco
Symphony, Michael Tilson Thomas.
With
just three months till the competition deadline in February next year, anyone
hoping to perform on the world stage and be part of musical history must act
quickly.
As
New York Carnegie Hall’s director Clive Gilinson puts it, “This will be a
one-of-a-kind moment in classical music, bringing musicians together in a
totally new, modern and unique way.”
66.What is the
best title for this passage?
A.Online Orchestra.
B.Collaboration with orchestras.
C.Video ? sharing.
D.Talent show.
67.What does the
underlined phrase “to make it big” in paragraph 1 mean?
A.To become successful. B.To talk big.
C.To be positive. D.To show off.
68.We can know
from the passage that the video ? sharing site .
A.owns many famous orchestras working
together
B.is said to be the first
collaborative online orchestra
C.has sponsored many performances
around the world
D.has discovered many talented
persons in music
69.How did Tang
Dun compose his latest music according to his own words?
A.The invisible Silk
Road affected him greatly.
B.The Internet joins people across
the world, which helped him a lot.
C.The sounds of mechanics around New York streets gave
him an inspiration.
D.The video ? sharing website
encouraged him.
70.What is true
about the competition?
A.The online competition deadline is
in January 2009.
B.The final winners will be chosen by
some experts.
C.The competition hopes to pick out
the top composers from the whole world.
D.Users are encouraged to submit
videos of themselves playing music instruments.
A tropical
fish that lives in mangrove swamps (濕地) across the Americas can survive out of water for months at a time,
similar to how animals adapted to land millions of years ago, a new study
shows.
The
Mangrove Rivulus, a type of small tropical killifish, seeks refuge in
shallow pools of water in crab caves, nut shells or even old beer cans in the
tropical mangrove swamps of Belize,
the United States and Brazil.
When
their living place dries up, they group together on the land in hollowed logs (圓木) and breathe air through their
skin instead of their gills (腮) until they can find water again. The fish, whose scientific name
is Rivulus Marmoratus, can grow as large as three inches.
The
scientific breakthrough came after a trip to Belize.
“We
kicked over a log and the fish just came dropping out,” Taylor
told Reuters in neighboring Guatemala
by telephone. He said he will publish his study on the fish in The American
Naturalist journal early next year.
In
lab tests, Taylor said he found the fish can survive for up to 66 days out of
water without eating, and their metabolism(新陳代謝) keeps functioning.
Some
other fish can survive briefly out of water. The walking catfish found in
Southeast Asia can move about over land for hours at a time, while lungfish
found in Australia, Africa
and South America can survive out of water,
but only in a sleeping state.
No
other known fish can be out of water as long as the Mangrove Rivulus and remain
active, according to Patricia Wright, a biologist at Canada's University of
Guelph.
“These
animals live in an environment that is similar to conditions that existed
millions of years ago, when animals began making the evolution(進(jìn)化) from water onto land,” she said.
71.The
underlined word “refuge” in paragraph 2 probably refers to “”.
A.shelter B.food C.water D.companion
72.The writer
mentions the catfish and lungfish in the passage with the aim to .
A.tell us that the Mangrove Rivulus
is much larger
B.show that there are many other fish
that can live out of water
C.make a comparison with the Mangrove
Rivulus
D.tell us that there is a long way
ahead in the study about fish
73.How does the
scientific breakthrough about Rivulus come out?
A.Scientists found it accidentally
and made some experiments.
B.Local people in mangrove swamps
across the Americas
discovered it.
C.Reuters reporter offered the news
to a scientist by telephone.
D.Lab study shows scientists its
living place.
74.The Mangrove
Rivulus is quite different from other fish because it can .
A.live for a period of time out of
water without eating
B.breathe with their lung in a
sleeping state
C.grow as large as three inches
D.survive out of water much longer
and remain active
75.What does the
last sentence of the passage imply?
A.The fish can live a life as long as
millions of years.
B.The fish will be helpful in
studying the evolution of animals.
C.The environment on earth is still
the same as it was millions of years ago.
D.Animals begin making evolution from
water onto land nowadays.
Most
people agree that the direct American personality is a virtue, but it sometimes
surprises foreigners. In many cultures, respect for older people or those in
positions of authority keeps others from expressing their true feelings.
But in the US, children often argue with their parents, students may disagree
with their teachers, and citizens may express opposition to the actions of the
government. If the soup has a fly in it or the meat is too tough to chew, the diner can
complain to the waiter, if the boss makes a mistake, an employee will politely
point it out.
Some
straight talk about the American character must include the admission that
Americans have their faults. The extremely competitive nature of Americans is
probably their worst fault. Although sometimes it may promote excellence by
encouraging individuals and businesses to try to do their best, the desire to
get ahead of others sometimes causes people to do things that are unkind and
even dishonest. Also, Americans admire what is practical, fast, efficient, and
fresh. Sometimes they fail to understand and appreciate practices that have
greater respect for more traditional, leisurely ways of doing things. On the
other hand, people from other cultures may dislike the practical, challenging
American lifestyle.
Despite
culture differences, most foreigners give Americans credit for their virtues.
Americans are generally viewed as friendly and energetic. Most newcomers to the
U.S. like Americans, and the feeling is usually mutual(相互的). Perhaps the greatest American
virtue is a deep interest in new ideas and new people. In a nation of
immigrants, the foreigner does not remain an outsider for long.
76.What American
virtues can we learn from the passage? (List three within 10 words)
(1)(2)(3)
77.For what
purpose does the writer give us some examples in the first Paragaph ?(Please
answer
within
10 words)
78.What does the
writer mainly talk about in Paragraph 2? (Please answer within 10 words)
79.Which
sentence in the passage is the closest in meaning to the following one?
Most
immigrants think highly of the American virtues although they are different in
culture.
80.Translate the
underlined sentence in the first Paragraph into Chinese.
Research
shows that middle school students’ health condition is declining obviously in
recent years. Most students are near ? sighted, some are weak or over ? weight
and many can’t reach the physical standard. It is absolutely true.
What
causes such problems? First, many students spend too much time before computers
or TV sets. Second, students have to prepare themselves for examinations in the
severe competing society. As a consequence, they spend most of their time on
their subjects. Third, many of them don’t form the habit of taking physical
exercise regularly.
It’s
necessary and crucial to find ways to improve students’ health condition. One
available way is to do physical exercises at least an hour every day. In
addition, a healthy diet is also contributive to it. At last, the schools
should take measures to reduce the heavy school ? work burdens of the students.
附:聽(tīng)力錄音材料
1.M:Oh, dear, I feel hungry now. How
about you?
W:So do I. Let’s call room service.
Hello, room service? Please send a menu to 320 right now.
2.M:Do you think we can get there by night?
W:If the traffic lights are with us,
there should be no problem.
1.(洛陽(yáng)一模)2008年9月27日,宇航員翟志剛成功完成中國(guó)歷史上首次太空行走,使中國(guó)成為第三個(gè)獨(dú)立掌握出艙活動(dòng)技術(shù)的國(guó)家。宇航員出艙時(shí),呼吸所需的氧氣主要來(lái)自太空服中的呼吸面具。下列物質(zhì)在一定條件下均能產(chǎn)生氧氣,其中最適宜用于呼吸面具中供氧的是 D
A.HNO3 B.H2O2 C.KClO3 D.Na2O2
1.(信陽(yáng)一模)澳大利亞研究人員最近開(kāi)發(fā)出被稱為第五形態(tài)的固體碳,這種新的碳結(jié)構(gòu)稱作“納米泡沫”,它外形類似海綿,比重極小,并具有磁性。納米泡沫碳與金剛石的關(guān)系是( A )
A.同素異形體 B.同分異構(gòu)體 C.同位素 D.同系物
2.(信陽(yáng)一模)“E85”是含乙醇85%的乙醇汽油。美國(guó)科學(xué)家最近的一項(xiàng)研究表明,大量使用“E85”可能導(dǎo)致大氣中O3含量上升,將會(huì)對(duì)人體造成更直接的傷害。下列各項(xiàng)中正確的是( D
)
A.“E85”是由兩種物質(zhì)組成一種燃料,屬新能源
B.推廣使用乙醇汽油是為了減少溫室氣體排放
C.等質(zhì)量的“E85”和汽油充分燃燒后放出的能量相等
D.乙醇屬可再生性能源
5.(信陽(yáng)一模)一種“即食即熱型快餐”適合外出旅行時(shí)食用,其內(nèi)層是用鋁箔包裹的并已加工好的真空包裝食品,外層則是分別包裝的兩包化學(xué)試劑,使用時(shí)拉動(dòng)預(yù)留在外的拉線,使這兩種試劑混合,便可對(duì)食物進(jìn)行加熱,這兩包化學(xué)試最適宜的組合是( B )