题目列表(包括答案和解析)
语法填空
In the sea, at the base of what scientists call the food web, 1 single-celled plants． 2 plants–algae(海藻)–provide the energy for the web that feeds higher forms of life．
3 some conditions, algae suddenly begin to spread very quickly, an event 4 (know)as a bloom．When algae bloom, they can change the color of the water as they form dense areas near the surface．You may 5 (hear)the term“red tide”．But experts say this is 6 (correct)．Blooms are not connected with tides, and 7 do not always appear red–the water can look brown 8 greenish．So, instead of“red tide”, scientists use the term“harmful algal bloom”, or HAB 9 short．Not only the fish that feed on algae are dangerous to eat, bigger fish that eat the algae-eaters may also be 10 (danger)．
With the weather getting colder, visitors from Australia spent their _____ days in
Beijing.
A. a few last B. last few C. few last D. last a few
I used to be ashamed of my grandma. I know that's a 36 thing to say, but it was true until today, so I have to 37 it.
The 38 started when my friend Katy found Grandma's false teeth floating in a glass on the bathroom sink. I was so used to seeing them that I 39 took notice of them. But Katy shouted, laughing and 40 to talk to them. I had to get down on my knees and 41 her to shut up so my grandma wouldn't 42 and get hurt.
After that happened, I 43 there were a million things about Grandma that were embarrassing（令人窘迫）.
Once she took Jill and me out to Burger King. 44 ordering our hamburgers well-done, she told the person behind the counter, "They'll have two Whoppers (巨无霸) well-to-do. " Jill burst out laughing, but I almost 45 .
After a while, I started wishing I could 46 Grandma in a closet. I even complained to my parents. Both my parents said I had to be careful not to make Grandma feel 47 in our home.
Then last Wednesday, something happened that 48 everything completely. My teacher told us to help find interesting old people and 49 them about their 50 for a big Oral History project. I was trying to think of someone when Angie pushed me gently.
"Volunteer your grandmother," she whispered. "She's 51 and rich in experience."
That was the last thing I ever thought Angie would say about my grandma.
This is how I ended up on 52 today interviewing my own grandmother before the whole school assembly (集合). All my friends and teachers were listening to her 53 she was a great heroine. I was 54 of my grandma and hoped she would 55 know that I had been ashamed of her.
36. A. funny B. common C. terrible D. clear
37. A. admit B. receive C. refuse D. show
38. A. quarrel B. accident C. trouble D. adventure
39. A. already B. always C. simply D. hardly
40. A. enjoying B. pretending C. imagining D. continuing
41. A. warn B. demand C. advise D. beg
42. A. mind B. hear C. see D. fall
43. A. expected B. declared C. realized D. doubted
44. A. Because of B. Except for C. Such as D. Instead of
45. A. died B. cheered C. disappeared D. suffered
46. A. meet B. avoid C. arrange D. hide
47. A. independent B. inconvenient C. unwelcome D. unfamiliar
48. A. changed B. finished C. stopped D. Prepared
49. A. interview B. report C. tell D. write
50. A. news B. lives C. advantages D. achievements
51. A. free B. popular C. interesting D. embarrassing
52. A. show B. stage C. duty D. time
53. A. and then B. even if C. so that D. as if
54. A. sure B. proud C. ashamed D. afraid
55. A. never B. even C. still D. once
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多途选项。
Laser(激光)is short for Light Amplification by Stimulated Emission of Radiation．Laser light is different from daylight or electric lights．Industry put lasers to work almost immediately after they were invented in nineteen sixty． 1 ．
The first medical operation using a laser took place the year following its invention．Doctors Charles Campbell and Charles Koester used a laser to remove a tumor from a patient's eye at Columbia-Presbyterian Hospital in New York City． 2 ．
Lasers have made measurement an exact science．Astronomers have used lasers to measure the moon's distance from Earth． 3 ．For example, drawing a perfectly level straight line on a construction site is easy using a laser．
4 ．And the jewelry industry uses lasers to write on the surface of the world's hardest substance, diamonds．
Lasers are found in many products used almost everywhere．Over one hundred years ago, writers imagined that beams of light could be powerful weapons．Today, lasers guide missiles and bombs．American defense companies are working on giant laser guns recognizable to science fiction fans everywhere． 5 ．
Scientific American magazine says huge lasers turn only about twenty to thirty percent of the energy they use into a laser beam．The rest is lost as heat．
That has not stopped scientists from working to perfect powerful lasers that, one day, may be able to shoot missiles out of the sky．
A．But weapons were not the first to use it on the list．
B．All lasers have several things in common．
C．Mappers and builders use laser technology every day．
D．But there are technological difficulties．
E．Lasers have also changed the way we communicate．
F．Manufacturers have used lasers for years to cut and join metal parts．
G．Since then, doctors have used lasers to cut and remove tissue safely with little risk of infections．
I was cleaning out an old box when an old card caught my eye：Queen City Casket Company．“What is it?” I wondered．I 36 it over．There，in faded ink, was a hand-scrawled(手写的) 37 . Immediately my mind traveled 38 many years．
I was nine years old, walking down the cold，wet streets of Springfield，with a bag of magazines on my shoulder．On my 39 that day．I came to that Company finally, whose owner, Mr. Rader，had always taken me there to ask his workers 40 they wanted any magazines．
Shaking off the 41 like a wet dog．I entered Mr. Rader's office．After a quick glance ,he 42 me over to the fire-place．Noticing the 43 in the top of my 44 ，he said，“Come with me!”，pulling me into his pickup 45 ．we pulled to a stop before a shoe store．Inside，a salesman 46 me with the finest pair of Oxfords I had 47 seen．I 48 about 10 feet tall when I got up 49 them．“We’d like a pair of new socks too．” Mr Rader said．
Back in his office, Mr Rader took out a 50 ，wrote something on it, and handed it to me．With 51 eyes，I read，“Do to others as you would have them do to you．” He said affectionately(深情地)，“Jimmy，I want you to 52 I love you”．
I said good-bye, and for the first time I 53 a flicker of hope that somehow things would be 54 ．With people like Mr Rader in the world，there was hope，kindness and love，and that would always make a 55 ．
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