题目内容
（请给出正确答案）
[主观题]
It is on May 15 every year______income taxes are due, which all people who receive an inco
me must pay.
A．when
B．that
C．what
D．which
查看答案
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A．when
B．that
C．what
D．which
如果结果不匹配，请 联系老师 获取答案
更多“It is on May 15 every year____…”相关的问题
According to our policy, clothes may not be _______ if they have ever been worn.
A．returned
B．retired
C．referred
D．resumed
Composers today use a wider variety of sounds than ever before, including many
that were once considered undesirable noises. Composer Edgard Varese (1883-1965)
called thus the "liberation of sound...the right to make music with any and all sounds."
Electronic music, for example―made with the aid of computers, synthesizers, and
(5) electronic instruments―may include sounds that in the past would not have been
consdered musical Environmental sounds, such as thunder, and electronically generated
hisses and blips can be recorded, manipulated, and then incorporated into a musical
composition. But composers also draw novel sounds from voices and nonelectronic
instruments. Singers may be asked to scream, laugh, groan, sneeze, or to sing phonetic
(10) sounds rather than words. Wind and string players may lap or scrape their instruments.
A brass or woodwind player may hum while playing, to produce two pitches at once; a
pianist may reach inside the piano to pluck a string and then run a metal blade along it. In
the music of the Western world, the greatest expansion and experimentation have involved
percussion instruments, which outnumber strings and winds in many recent compositions.
(15) Traditional percussion instruments are struck with new types of beaters; and instruments
that used to be couriered unconvennonal in Western music―tom-toms, bongos,
slapsticks, maracas―are widelv used.
In the search for novel sounds, increased use has been made in Western music of
Microtones. Non-Western music typically divides and interval between two pitches more
(20) finely than Western music does, thereby producing a greter number of distinct tones,
or micro tones, within the same interval. Composers such as Krzysztof Pmderecki create
sound that borders on electronic noise through tone clusters―closely spaced tones played
together and heard as a mass, block, or band of sound. The directional aspect of sound has
taken on new importance as well Loudspeakers or groups of instruments may be placed
(25) at opposite ends of the stage, in the balcony, or at the back and sides of the auditorium.
Because standard music notation makes no provision for many of these innovations,
recent music scores may contain graphlike diagrams, new note shapes and symbols, and
novel ways of arranging notation on the page.
What does the passage mainly discuss？
A．The use of nontraditional sounds in contemporary music
B．How sounds are produced electronically
C．How standard musical notation has beer, adapted for nontraditional sounds
D．Several composers who have experimented with the electronic production of sound
A．Urgent matters must be taken care of in any event.
B．Special circumstances may arise at any time.
C．No reasonable excuse will ever be accepted.
D．Assignment grades will be lowered otherwise.
查看材料
What may delay the recovering process of nuclear power in the future？
A．The French company -- Areva's monopoly status in nuclear market.
B．People's ever pessimistic view on nuclear power.
C．The high cost of nuclear plants and the indefinite cost of nuclear energy.
D．Governments' concentration on solving climate problems.
听力原文：M: Grading the papers ought to be easier than ever this year.
W: Unless the computer breaks down.
What do we learn from the conversation？
A．The computer needs to be fixed.
B．It may be difficult to grade this year's papers.
C．The computer is not put in a safe place.
D．Some teachers prefer to go over the papers by hand.
If a person dreams of going over the edge of a cliff, he may _
A.be under pressure in everyday life
B.be afraid of losing control in real life
C.feel liferior in reality
D.feel longly in everyday
E.feel tired in real life
F.be afraid of losing his job in real life
Did you know that a task thats interrupted (1)_____ 50% longer and has 50% more mistakes than an uninterrupted one？ It takes a while for our brains to get into a focused state(2)_____ were able to concentrate fully on a task without feeling (3)_____. Once were in that state, we can enjoy a very productive flow,(4)_____ we dont get interrupted. A focused mind is still(5)_____ to disruption from external input. Interruptions—i.e. switching to a different, largely(6)_____ set of thought patterns—(7)_____ and scramble much of your (8)_____ loaded and nicely optimized brain state. (9)_____ frequent interruptions can prevent you from ever fully entering that state of flow. When you interrupt someone,(10)_____ it takes them 23 minutes to(11)_____ to the original task, plus(12)_____ to 30 minutes to return to the flow state(13)_____ they can be fully productive again. Almost half of the time you interrupt someone, youll actually knock them(14)_____ task completely,(15)_____ they wont return to the original task right away when the interruption(16)______. You may think youre only putting them on pause for a minute or two, but the actual break from the task that(17)_____ your interruption may be significantly(18)______. Frequent task switching has also been measured to significantly increase stress levels. So interrupting others not only hurts their(19)_____, but it may also damage their health. Interruptions are expensive too. One estimate puts the (20)_____ of workplace interruptions at $588 billion per year in lost productivity for the U.S. economy.
(1)
A．adapts
B．takes
C．wastes
D．spends
第二篇
The idea of test-tube babies may make you starry-eyed with delight at the wonders of modern medicine or bleary-eyed with considering the moral/legal implications of starting life in a laboratory. But if you've ever been pregnant(怀孕)yourself, one thing is certain: You wonder what it's like to carry a test-tube baby. Are these pregnancies normal？ Are the babies normal？
The earliest answers come from Australia, where a group of medical experts at the Queen Victoria Medical Center in Melbourne have taken a look at the continent's first nine seemed to proceed according to plan, but at birth some unusual trends did show up. Seven of the nine babies turned out to be girls. Six of the nine were delivered by Caesarean section(剖腹产术). And one baby, a twin, was born with a serious heart defect and a few days later developed life-threatening abdominal problems.
What does it all mean？ Even the doctors don't know for sure, because the numbers are so small. The proportion of girls to boys is high, but until there are many more test-tube babies no one will know whether that's pure coincidence(巧合)or something special. The same thing is true of the single heart defect; it usually shows up in only 15 out of 60,000 births in that part of Australia, but the fact that it occurred in one out of nine test-tube babies does not necessarily mean that they are at special risk. One thing the doctors can explain is the high number of Caesareans.
The Australian researchers report that they are quite encouraged. All the babies are now making nomal progress--even the twin with the birth defects.
The passage imples that the first test-tube babies were born in______.
A. Canada
B. Britain
C. America
D. Australia
听第9段材料，回答第15～17题。
Text 9
M: Are you looking forward to your trip to Canada, Susan？
W: I can't wait to see Canada, Jason, but I'm scared stiff of the journey. My husband insists on flying, but I want to sail. Planes make me nervous.
M: There's nothing to be frightened of. How many planes fly across the Atlantic every day？
W: I've no idea. Hundreds, I suppose.
M: And how often do you hear of a crash？ Once or twice a year？
W: Yes, but aero-planes fly so high and fast that once is enough.
M: There are more road accidents per day than air deaths per year. Air transport is really safe compared with road transport.
W: I still prefer to go by sea. Ships may not travel fast but as least you can relax. I'd love a trip on a luxury liner like the Queen Elizabeth II.
M: It's fine if you're a good sailor, but have you ever traveled far in a rough sea？
W: No. I've only been in a boat once. I sailed down the River Thames on a sightseeing tour, but in any case I'd rather be sea-sick than dead.
What is the woman afraid of when she takes her trips？
A. Taking a voyage.
B. Taking a train.
C. Taking a flight.
A．Some eggs have double yolks, so you can't really count eggs and chickens.
B．You can't walk around the henhouse to count the eggs because it will disturb the hens and they won't lay eggs.
C．It is not really sensible to rely on something that has not yet happened and may not ever happen.
D．Since eggs break so easily, you may not be accurate in your count of future chickens.
