18．Astraight（直的）line is the shortest distance between mo points．

分析 兩點(diǎn)之間直線距離最短．

解答 答案：straight直的，形容詞；句中是修飾名詞line，直接填原形即可．

點(diǎn)評 翻譯填空題考查的是詞匯的記憶和運(yùn)用能力，平時要注意積累和運(yùn)用．同時還要注意區(qū)分近義短語．

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

5．Some people are like homing pigeons：Drop them off anywhere，and they'll find their way around．Other people，though，can't tell when they're holding a map upside down．Are the directionally challenged just bad learners？
Not all of your navigational （導(dǎo)航的）skills are learned．Research shows that your sense of direction is innate．An innate ability is something you are born with．Your brain has special navigational neurons-head-direction cells，place cells，and grid cells （網(wǎng)格細(xì)胞）-and they help program your inside compass when you're just a baby．
In 2010，scientists carried out an experiment to study baby rats'neural activity in their brains．Although the rats were newborns，the researchers discovered that their head-direction cells （which help them recognize the direction they're facing） were fully grown and developed．The rats，it seemed，were born with a sense of direction．And they hadn't even opened their eyes yet!
Humans，of course，are not rats．But the hippocampus-the brain area we use for navigation-is similar in most mammals．If the rat's compass develops this way，then it's likely that a human's compass does，too．
If we're born with a sense of direction，then why are some people so good at getting lost？The scientists found that the two other cells-place and grid cells-developed within the first month．Place cells are thought to help us form a map in our mind，while grid cells help us navigate new and unfamiliar places．The two cells work together，and that's where the trouble might be．
People who took part in a 2013 study played a video game that required them to travel quickly between different places．Monitoring their brains，the scientists found that grid cells helped the gamers recognize where they were-even without landmarks．According to researcher Michael Kahana，differences in how grid cells work may help explain why some people have a better sense of direction than others．
32．What did the 2010 research find？A
A．Rats have a natural ability to recognize directions．
B．Rats'hippocampus is different from that of humans．
C．Rats usually find their way without opening their eyes．
D．Baby rats have as many head-direction cells as grown-ups．
33．What do we know about our navigational neurons？D
A．Place cells let us know how to read a map．
B．Grid cells help us reach the place we are going to．
C．They help us use a compass when we lose our way．
D．Place and grid cells grow later than head-direction cells．
34．Why are some people so good at getting lost？B
A．They can't remember landmarks．
B．Their grid cells can't work very well．
C．They are unfamiliar with new places．
D．Their ability to follow directions is poor．
35．What is the text mainly about？A
A．Human navigational skills．
B．The compass in rats'body．
C．Why grid cells are useful．
D．How homing pigeons work．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

9．At the news conference the Foreign Minister spoke slowly so as to _____ what he would say．（　�。�
A．passB．weighC．coverD．spread

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

6．treat（　　）
A．dealtB．areaC．breathD．reason

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

13．merchant（　�。�
A．machineB．achieveC．stomachD．technology

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

3．It was reported that the driver narrowlyescaped（逃脫）from the burning car．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

10．through（　�。�
A．coughB．enoughC．ploughD．rough

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

7．Want to find a job？Now read the following advertisements．
FAIRMONT HOTEL
Five waiters and Ten Waitresses
---Aged under 22
---At least high school graduate
---Good looking； men at least 1.72meters tall and women 1.65
---Those knowing foreign languages preferred
---Paid 1600-2200dollars per month
One Secretary
---Aged under 30
---Female preferred
---Good at writing and skilled at computer
If interested，call 465-4768or write to：Mr．Jack Hundris Room 0825，F(xiàn)airmont Hotel
567Wood Street，San Markers，78003
Fax：6954828
WILSON BOOKSTORE
Accountants（會計）
---Aged between 25and 40
---With an experience of at least two years
---With a degree and an accountant certificate
---Paid 3000-4000dollars monthly
---With a knowledge of computer
Salesclerks
---Basic education of 12years or more
---Good at computer
---Paid 1800-2200dollars monthly
Tel：447-4398Fax：3485269
21．If you don't know how to use a computer，you can just apply for the position asB．
A．a(chǎn) secretary
B．a(chǎn) waiter or a waitress
C．a(chǎn)n accountant
D．a(chǎn) salesclerk
22．If you want to get the position of accountant in Wilson Bookstore，you have to satisfy the following conditions EXCEPTA．
A．being a woman
B．knowing well how to use a computer
C．having been an accountant
D．having an accountant certificate
23．If you want to try for a job in Fairmont Hotel，youD．
A．have to be a woman and know foreign languages
B．should be a university graduate
C．have to be taller than 1.72meters
D．should be younger than 30years old．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

5．The earthquake striking Japan in March was extremely powerful，even _____ the shape change of the country's coastline．（　�。�
A．resulted inB．resulting inC．resulting fromD．resulted from

查看答案和解析>>

同步練習(xí)冊答案