(C)11.A.invent B.inventing C.invented D.to invent

(D)12.A.before B.when C.since D.until

(C)13.A.much B.quite a lot of

C.very little D.many

(B)14.A.world B.countries C.land D.earth

(D)15.A.lucky B.glad C.sorry D.tired

(A)16.A.the number of B.a number of

C.this kind of D.all kinds of

(B)17.A.safer B.more dangerous

C.much dangerous D.safe

(B)18.A.by B.in C.use D.drive

(C)19.A.Hardly B.May be C.Perhaps D.Nearly

(A)20.A.it B.them C.use D.that

Ⅲ.补全对话。

根据对话内容，从方格的选项中选出能填入空白处的最佳选项。

A：Today we are going to talk about a great invention.It looks like a human being.21.__F__

B：It's a robot.22.__D__

A：Of course not.The first robot was invented in 1921.

B：23.__G__

A：Sure.They can take the place of humans to do some boring work.They can also do a lot of dangerous work instead of humans.

B：24.__E__

A：No.Robots can do a lot of work instead of people in many ways，but people wouldn't be replaced by robots.25.__A__

B：We get it.

A.Is that clear?

B.Can it do some washing?

C.Why do you think it is useful?

D.It appeared several centuries ago，didn't it?

E.Will robots be the same as people?

F.What is it?

G.Could you please tell me more about robots?

Ⅳ.阅读理解。

Come and meet the coolest inventions.It really sounds like life in the future.And it makes our lives easier，greener and a whole lot more fun.

Robot English Teachers

Place：In South Korea

Usage：Help students practice speaking English

Reason：The shortage of English teachers in South Korea Underwater Kite

It's a deep green kite in the ocean.

Function：To collect energy

Usage：Just one hour of the kite's work could supply about two weeks of power for the average home

Inventor：Glen Martin

Price：$100，000

Green Machine

Name：Air Pod car

Character：Runs on air power，three wheels

Advantages：No pollution，say goodbye to gas eLEGS

Function：Help people with paralyzed (瘫痪的) legs stand and walk on their own

Consists：Robotic legs，crutches (拐杖)

Appear：Be used at home by 2013

Robo-Guard

Function：Can swim through water at up to 24 miles each hour

Inventor：Tony Mulligan

Usage：A four-foot-long buoy (救生圈) Hard-working Robot

Function：A perfect office helper which can send out documents

Usage：Can be worked as a security guard

Character：Can identify different human voices and follow instructions