精英家教网 > 高中英语 > 题目详情
1.The tiger population in this forest is three times larger than that of ten years ago.
The tiger population in this forest has grown to three timeswhat it was ten years ago.

分析 这个森林里老虎的数量是十年前的三倍.

解答 答案:what it was.
分析句子的结构可知,本题是考查倍数的表达方式,根据第二句的句式特点可知答案为what it was.

点评 本句重点在于倍数的表达:
1."…times+形容词/副词的比较级+than …"
例如:Line AB is three times longer than line CD.线段 AB 是(线段) CD 的三倍长.
2."…times+as+形容词/副词的原级+as …"
例如:This table is three times as long as that one.这张桌子是那张桌子的三倍长.
3."…times+the+名词(如:size,height,weight,length,width 等)+of …"
例如:The earth is 49 times the size of the moon.地球的体积是月球的 49 倍.
4.倍数+what从句.如:
The production is now three times what it was ten years ago.现在的产量是十年前的三倍.

练习册系列答案
相关习题

科目:高中英语 来源: 题型:填空题

11.The company will send somerepresentatives(代表) to London.

查看答案和解析>>

科目:高中英语 来源: 题型:选择题

12.He made a number of rude __________ about the food made in the restaurant where he worked.(  )
A.argumentsB.quarrelsC.remarksD.debates

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

9.In society,some greedy businessmen hide from their responsibilities and only worry about money.

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

16.Sarah regrettedchatting (chat) online after her online friend turned out to be a boy from her class playing a joke on her.

查看答案和解析>>

科目:高中英语 来源: 题型:选择题

6.-It's useless crying over spoiled milk,________?
-It's better late than never.Actually,no one has expected it,________?(  )
A.is it; have theyB.isn't it; have they
C.isn't it; hasn't heD.is it; hasn't he

查看答案和解析>>

科目:高中英语 来源: 题型:填空题

13.Our modern life is changing our eating habits.We (61)are spending  (spend) too much time in front of TV or computers and becoming"couch potatoes"or"mouse potatoes."We also eat too much junk food and we don't get enough exercise.The foods we find in the supermarket are sometimes not(62)beneficial      (benefit) to us,and it is difficult to know exactly (63)what we are eating when we buy ready-made or pre-prepared dishes.(64)Considering (consider) this situation,it is becoming  (65)more  (much) important than ever to make sure that we keep a healthy diet.
A healthy diet gives us the calories we need and don't contain too much fat.The number of calories we need (66)varies (vary) depending on what kind of body we have (are we short,tall,heavy etc.) and(67)how      active we are.Quality food,or healthy food,gives us calories in the best way.Junk food,(68)on   the other hand,gives us few calories and lots of fat and sugar.If we eat too much fat and sugar,we will put on (69)weight   (weigh) easily.In order to live a happy and long life,we should keep a (70)balanced      (balance) diet.

查看答案和解析>>

科目:高中英语 来源: 题型:短文改错

10.X-Men:Apocalypse is a 2016American superhero film starring in many popular actors including James McAvoy,and Jennifer Lawrence.in 删掉.

查看答案和解析>>

科目:高中英语 来源: 题型:阅读理解

14.LOS ANGELES (Reuters)---Onions make you cry,add flavor to food and are talked about a lot for their medicinal benefits.Now the vegetable has another use---powering up green energy.
A new system debuts on Friday that changes onion juice into electricity at Gills Onions,the largest fresh onion processor (加工机) in the United States.
The Oxnard,California-based company expects its new onion-fueled power to reduce its electric bill by﹩700,000 a year and cut its annual greenhouse gas releasing by up to 30,000 tons.The happy ending to this green energy tale,however,generated another question:how to get rid of onion waste."When we peel an onion,35 to 40 percent of the onion comes off before we have a usable onion.That's the top,tail and skins around the onion before you get to the meat,"said Steven Gill,co-owner of the 25-year-old company.
They used to take the waste to the fields for composting (堆肥) but that became a problem as it cost too much.Ten years ago,Gill started looking at technology for a solution."We ended up destroying the skins as they c ome out of the plant and extracting all the juice,which is very high in sugars,and bacteria love it,"Gill said.
In the new system,bacteria produce methane gas(沼气) from the juice.The gas then goes to two 300 kilowatt fuel cells,creating enough power for 460 homes.The company expects to get 35 to 40 percent of its electricity from this new system.
The company invested﹩9.5 million in the project and will receive﹩2.7 million from Southern California Gas Co.,a regulated subsidiary of Sempra Energy,as part of a state program to encourage self-contained generation by businesses.In addition to cutting its electric bill,the company will save﹩400,000 in costs of taking the waste to the fields and expects pay-back in six years.
The onion grower now has a new goal:to be a zero-waste facility by 2013.
"We wanted to follow it all the way through and make the full circle,"Gill said.

41.What would be the best title for this passage?D
A.Onions are made use of in America now
B.US company finds a new way to reduce costs
C.Onions are widely used to produce electricity now
D.US company turns onion juice into electricity
42.According to the passage,we can learn that in the pastB.
A.onion waste was a problem for most people
B.a big part of an onion was wasted
C.onions were mainly used as medicine
D.onions were not liked by most people
43.In the new system,onions can be used to produce electricity mainly becauseD.
A.the skins of onions can be destroyed easily
B.the onion waste is taken to the fields
C.a lot of bacteria are put into onions
D.bacteria can produce methane gas from onion juice
44.It is implied in the passage thatD.
A.every family can use onions to produce electricity
B.this new technology is not well received by some people
C.onions have played the most important role in producing power
D.using onions to produce electricity will help reduce pollution
45.In which part of a newspaper would you most probably read this passage?A
A.Science    B.Education   C.Health   D.Agriculture.

查看答案和解析>>

同步练习册答案