2019年職稱英語考試《理工類》考試共65題，分為單選題和多選題和判斷題和計算題和簡答題和不定項。小編每天為您準備了5道每日一練題目（附答案解析），一步一步陪你備考，每一次練習的成功，都會淋漓盡致的反映在分數上。一起加油前行。

1、So far no one has been able to account for the cause of the accident. 【單選題】

A.assess

B.explain

C.describe

D.investigate

正確答案:B

答案解析:account for和explain同義，解釋、說明；assess:評估；describe:描述；investigate:調查。

2、The Guitar
The Museum of Fine Arts in the eastern city of Boston recently began showing a collection of guitars. The exhibit is called Dangerous Curves: The Art of the Guitar. It shows how the instrument developed during the past four centuries.
Probably no other musical instrument is as popular around the world as the guitar. Musicians use the guitar for almost every kind of music. Country and western music would not be the same without a guitar. The traditional Spanish folk music called Flamenco could not exist without a guitar. The sound of American blues music would not be the same without the sad cry of the guitar. And rock and roll music would almost be impossible without this instrument.
Music experts do not agree about where the guitar first was played. Most agree it is ancient. Some experts say an instrument very much like a guitar was played in Egypt more than a thousand years ago.
Some other experts say that the ancestor of the modern guitar was brought to Spain from Persia sometime in the twelfth century. The guitar continued to develop in Spain. In the seventeen-hundred it became similar to the instrument we know today.
Many famous musicians played the instrument. The famous Italian violinist Niccolo Paganinni played and wrote music for the guitar in the early eighteen hundred. Franz Schubert used the guitar to write some ofhis famous works.
One guitar in the Boston Fine Arts display was played by Les Paul. It is a very old electric guitar. Mister Parl began experimenting with ways to make an electric guitar in the nineteen-thirties. The Gibson Guitar Company began producing its famous Les Parl Guitar in 1952.
The instrument has the same shape and the same six strings as the traditional guitar, but it sounds very different. The guitar has always been important to blues music. The electric guitar Mister Paul helped develop made modern blues music possible. There have been many great blues guitarists. Yet, music experts say all blues guitar players are measured against one man and his famous guitar.
That man is B-B King. Every blues fan knows that years ago B-B King named his guitar Lucille. Lucille is so important to American music that the Smithsonian Institution in Washington D-C has asked for it. They want to display the large, beautiful black guitar in one of the museums because it is a part ofAmerican culture.
Guitar is more popular than any other musical instrument in the world.
【單選題】

A.Right

B.Wrong

C.Notmentioned

正確答案:A

答案解析:本題說的是吉他比世上任何樂器都更加受歡迎。第2段第1句和第2句說的正是這個意思。

3、What Is the Coolest Gas in the Universe?
What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was - 91℃, which occurred in Antarctica (南極洲) in 1983.
We encounter an interesting situation when we discuss temperatures in space.
Temperatures in Earth orbit actually range from about +120℃ to - 120℃. The temperature depends upon whether you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well, de signed space suits that protect astronauts from these temperature extremes.
The space temperatures just discussed affect only our areal of the solar system. Obviously, it is hotter closer to the Sun and colder as we travel _____ from the Sun. Astronomers estimate temperatures at Pluto are about - 210℃. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your location. We are taught it is supposedly impossible to have a temperature below absolute zero, which is - 273℃, at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully cooled down a gas to a temperature barely above absolute zero. They won a Nobel Prize in Physics in 2001 for their work, not a discovery, in this case.
Why is the two scientists＇ work so important to science?
In the 1920s, Satyendra Nath Bose was studying an interesting theory about special light particles we now call photons (光子). Bose had trouble convincing other scientists to believe his theory, so he contacted Albert Einstein. Einstein＇s calculations helped him theorize that atoms would behave as Bose thought—but only at very cold temperatures.
Scientists have also discovered that ultra - cold(超冷) atoms can help them make the world＇s atomic clocks even more accurate. These clocks are so accurate today they would only lose one second every six million years! Such accuracy will help us travel in space because distance is velocity times time 4 ( d = v×t). With the long distances involved in space travel, we need to know time as accurately as possible to get accurate distance.
【單選題】

A.by

B.away

C.along

D.with

正確答案:B

答案解析:本題難度較大，考查詞義辨析，干擾項干擾較大。根據上下文邏輯，文章此處是說“當我們飛離太陽時溫度會變得更低”，答案是B。

4、Sharing Silence
Deaf teenagers Orlando Chavez and German Resendiz have been friends since kindergarten (幼兒園). Together the two boys, who go to Escondido High School in California, have had the difficult job of learning in schools where the majority of the students can speak and hear.
Orlando lost his hearing at the age of one. German was born deaf, and his parents moved from Mexico to find a school where he could learn sign language. He met Orlando on their first day of kinder garten.
"We were in a special class with about 25 other deaf kids," German remembered. "Before then, I didn＇t know I was deaf and I was different."
"Being young and deaf in regular classes was very hard," signs Orlando. "The other kids didn＇t understand us and we didn＇t understand them. But we＇ve all grown up together, and today, I＇m popular because I＇m deaf. Kids try to communicate with me."
Some things are very difficult for the two boys. "We can＇t talk on the phone, so if we need help, we can＇t call an emergency service," German signs. "And we can＇t order food in a drive - thru."
Despite of their difficulties, the two boys have found work putting food in bags at a local supermarket.
They got their jobs through a "workability" program, designed for teenagers from local schools with different types of learning disabilities.
German has worked in the supermarket since August, and Orlando started in November.
"The other people who work here nave been very nice to us," Orlando signs. "They even sign sometimes. At first, we were nervous, but we＇ve learned a lot and we＇re getting better."
The opportunity to earn money has been exciting, both boys said. After high school, they hope to attend the National Technical Institute for the Deaf in New York.
Orlando and German have been ______.【單選題】

A.to Mexico together

B.deaf since they were born

C.to different high schools

D.friends since they were very young

正確答案:D

答案解析:本題難度不大，本題針對文章開頭第一句出題，找到答案依據很容易。根據題干提示詞匯迅速到文章定位。找到文章開頭第一句，這一句談到，Orlando和German從上幼兒園時就是好朋友，回來看選項，很明顯，D項是近義解釋，是答案。

5、There is always excitement at the Olympic Games when an athlete breaks a record.【單選題】

A.beats

B.maintains

C.matches

D.tries

正確答案:A

答案解析:運動員在奧運會上打破記錄時總讓人興奮。本題有一定難度，考查的是引申意義，beat的基本意義是“擊打”，引申意義有“打破記錄”的意思，和break是近義詞，其他選項都是常用詞匯，和答案意義差異大，最佳答案是A。