Chokwe Selassie is on a mission to help drivers avoid potholes( 路面坑洼). The eighth-grader was inspired to kick off his mission on a recent morning, when his mother was driving him to school. Their car was damaged as it went over a huge pothole in the middle of the street in their hometown of Jackson, Mississippi. "I decided I was going to do something about the pothole prob-lem in my city," Chokwe says. His solution: an app(手機(jī)應(yīng)用) that warns drivers when there is a pothole ahead.

　　Chokwe developed the app with his friends Rodriguez Ratliff and Emmanuel Brooks. "When the app detects a potheole, it is highlighted(突出顯示) in red," Chokwe says. "And if you get close to the pothole, your phone will warn you. " Drivers can also use the app to report any pot-holes" they encounter, and to look for other routes they can take to avoid roads that have them.

　　The app relies on Current available information about the streets of Jackson. "It works by u-sing the city' s 311 call system, so it uses information already stored in a database," Chokwe says.

　　(79) Through the call system, citizens dial 3-1-1 to report non-emergency problems--whiCh in-clude potholes. Chokwe and his friends determined that focusing on the 10 busiest streets in Jack-son would give them a large enough sample size to test the prototype(原型).

　　(80) Although the app isn' t yet available for sale, Chokwe is already looking for ways to im-prove it. The prototype remains limited'to 10 streets in Jackson, but he hopes to add more, so that it includes every street in the city. And then he wants to go even farther. "I want to keep working on the app until it' s nationwide," Chokwe says.

　　第11題 Which of the following is the best title for the passage?

　　A.A Solution to Traffic Jams

　　B.An App to Detect Potholes

　　C.Pothole Problems in Big Cities

　　D.Poor Road Conditions

　　答案：B

　　第12題 The phrase kick off in Paragraph 1 is closest in meaning to__________.

　　A.leave

　　B.invent

　　C.begin

　　D.shift

　　答案：C

　　第13題 People use the 311 call system to report__________.

　　A.emergencies

　　B.terrorist attacks

　　C.non-emergencies

　　D.child abuse

　　答案：C

　　第14題 The prototype focuses on __________ streets in Jackson.

　　A.10

　　B.15

　　C.20

　　D.25

　　答案：A

　　第15題 According to the passage, which of the following statements is TRUE?

　　A.Chokwe developed the app all by himself.

　　B.People can buy this app from the online store.

　　C.His mother' s car was once damaged over a pothole.

　　D.The app works by using the city's 911 call system.

　　答案：C

　　Vocabulary and Structure Directions: In this part there are 30 incomplete sentences. For each sentence there are fourchoices marked A, B, C and D. Choose the ONE answer that best completes the sentence. Then blacken the corresponding letter on the Answer Sheet.

　　第16題 "Can your brother and sister understand the English teacher?" "No, of them can. "

　　A.not either

　　B.not one

　　C.neither

　　D.no one

　　答案：C

　　第17題 Someday in the future they are bound to __________ for the crimes they have committed today.

　　A.pay

　　B.cost

　　C.catch

　　D.spend

　　答案：A

　　第18題 A true friend is one who offers you a helping hand when you are__________.

　　A.in order

　　B.in public

　　C.in time

　　D.in trouble

　　答案：D

　　第19題 Young boys and girls stood on __________ sides of the street to welcome the president from Africa.

　　A.every

　　B.each

　　C.both

　　D.all

　　答案：C

　　第20題 Last night a big fire __________ in the suburbs of the town, causing huge losses to the area.

　　A.broke down

　　B.came down

　　C.broke out

　　D.came out

　　答案：C

　　第21題 Customer:Waiter, a table for two, please.

　　Waiter:Yes, sir. There' s one but it' s close to the door.

　　Customer: __________ We' 11 take it.

　　A.Excuse me

　　B.Not at all

　　C.Well, it doesn't matter

　　D.Not really

　　答案：C

　　第22題 A child' s first five years is important as far as learning is__________.

　　A.touched

　　B.worried

　　C.concerned

　　D.affected

　　答案：C

　　第23題 The man fell in love with her at first__________.

　　A.scene

　　B.sight

　　C.look

　　D.sign

　　答案：B

　　第24題 The key __________ success is hard work and persistence.

　　A.on

　　B.to

　　C.for

　　D.of

　　答案：B

　　第25題 We are all very grateful __________ you for your help.

　　A.on

　　B.from

　　C.with

　　D.to

　　答案：D

　　第26題 If Jack __________ to the office tomorrow, give him the letter please.

　　A.come

　　B.comes

　　C.came

　　D.will come

　　答案：B

　　第27題 __________ Yellow River is known to be second longest fiver in China.

　　A.The; the

　　B./;/

　　C.The;/

　　D./; the

　　答案：A

　　第28題 Neither Jane nor Ted __________ going to meet Professor Jones next Friday because both of them will be busy with their classes then.

　　A.are

　　B.were

　　C.is

　　D.was

　　答案：C

　　第29題 By the year 2020, China' s population probably __________ 1.4 billion.

　　A.will be reaching

　　B.are reaching

　　C.will have reached

　　D.has reached

　　答案：C

　　第30題 Mary is the only student in my class __________ speaks Chinese.

　　A.who

　　B.which

　　C.where

　　D.what

　　答案：A

　　第31題 Anna complained the hotel was too expensive. It had __________ her 1,000 dollars for the night.

　　A.spent

　　B.charged

　　C.offered

　　D.bought

　　答案：B

　　第32題 __________ was in a completely different way that he played the game.

　　A.That

　　B.It

　　C.There

　　D.As

　　答案：B

　　第33題 __________ all his homework for today, Tom felt very much relaxed and went out for a walk a-round his neighborhood.

　　A.To finish

　　B.To have finished

　　C.Finished

　　D.Having finished

　　答案：D

　　第34題 The weather forecast says there' s going to be a heavy storm here in two or three hours, so we have to hurry back home __________ it comes.

　　A.before

　　B.unless

　　C.although

　　D.until

　　答案：A

　　第35題 He was __________ drunk that he could hardly stand.

　　A.ever

　　B.only

　　C.such

　　D.so

　　答案：D

　　第36題 All students are required to translate this poem __________ English into Chinese.

　　A.with

　　B.from

　　C.on

　　D.for

　　答案：B

　　第37題 He was buried __________ in the earthquake.

　　A.live

　　B.alive

　　C.lived

　　D.lively

　　答案：B

　　第38題 __________ wrong data, he failed to work out the problem.

　　A.To be given

　　B.Being given

　　C.Have given

　　D.Having been given

　　答案：D

　　第39題 He would be studying at the university now if he __________ the entrance examination.

　　A.passed

　　B.have passed

　　C.had passed

　　D.should have passed

　　答案：C

　　第40題 Large quantities of water__________ needed for cooling purposes.

　　A.are

　　B.is

　　C.have

　　D.has

　　答案：A

　　第41題 It is no use __________ to remember only grammar rules.

　　A.trying

　　B.try

　　C.to try

　　D.tried

　　答案：A

　　第42題 He demands that she __________ her own records.

　　A.keep

　　B.keeps

　　C.has kept

　　D.is keeping

　　答案：A

　　第43題 Walking down the street the other day,__________.

　　A.I saw unusual something happen

　　B.a terrible accident occurred

　　C.something unusual was seen by me

　　D.I saw a terrible accident

　　答案：D

　　第44題 He studied hard at school when he was young, __________ contributed a lot to his success.

　　A.which

　　B.therefore

　　C.that

　　D.what

　　答案：A

　　第45題 She is leaving her husband because she cannot __________ his bad temper any longer.

　　A.put up

　　B.put away

　　C.put off

　　D.put up with

　　答案：D