What will the future world be like？ Many people are glad to give their （1） ．Here are two imaginations about the world of （2） ． When people talk about the future， we like to think that we'll have our own personal flying car． We would fly at 480kilometres per hour， avoiding traffic lights，（3） roads and speeding tickets．（4） ，some people point to the disadvantages of flying cars． One big problem is： what will happen if the flying cars （5） ？ Then there will be problems with traffic control． Also， if（6） become popular， there will surely be too much air traffic．（7） it seems that flying cars will face more than a few problems if they are to get off the ground!．Imagine you have your own Ironman （8） ． Several companies are trying to build a practical robot "exoskeleton"． This is a suit of robot arms and legs which follows your movement． It will（9） the wearer to lift heavy objects， walk a long way and even punch through walls! It is（10） in many ways， especially for people with disabilities． This suit might help people to walk again after（11） or injury（受伤）．But the disadvantage at the moment is the（12） ． Even a simple suit can cost hundreds of thousands of pounds． Another problem is battery life． A suit like this needs a lot of（13） and batteries only last about 15minutes at the moment． One other problem is that a badly programmed robot wearer． You wouldn't want your robot leg or arm bending（弯曲） suit could（14） the wrong way． car above our heads，
So in the future，（15） we might be able to fly to work and lift a there are plenty of problems to solve before this will be possible．
（1）A． suggestions |
B． instructions |
C． opinions |
D． reasons |
（2）A． past |
B． yesterday |
C． present |
D． tomorrow |
（3）A． empty |
B． wide |
C． busy |
D． dirty |
（4）A． Moreover |
B． Instead |
C． In fact |
D． However |
（5）A． put down |
B． break down |
C． write down |
D． calm down |
（6）A． they |
B． you |
C． we |
D．I |
（7）A． And |
B． But |
C． So |
D． or |
（8）A． gloves |
B． suit |
C． helmet |
D． shoes |
（9）A． ask |
B． wish |
C． invite |
D． allow |
（10）A． beautiful |
B． peaceful |
C． colorful |
D． useful |
（11）A． disease |
B． holiday |
C． work |
D．party |
（12）A． quality |
B． price |
C． need |
D． number |
（13）A． chances |
B． power |
C． rest |
D． experience |
（14）A． hurt |
B． attract |
C． protect |
D． attack |
（15）A． whether |
B． unless |
C． although |
D． until |
Before paper was invented，people wrote or drew on materials such as bamboo，
（1） /sɪlk/，animal hide，and wooden blocks．Writing materials were （2） （real）expensive and few people learned to read．Therefore，few people wrote．This all changed，thanks （3） a man named Cai Lun．
Paper had already existed（存在）in China，but the process for （4） （produce）it was difficult and the paper was of low quality．Cai Lun began experimenting（试验）with many different materials and different （5） （method）to turn those materials into paper．In the year 105，he made it from tree bark，bamboo，cloth rags，and fishing nets．His paper was （6） （strong）and cheaper than any paper that had been made before．
With Cai Lun's papermaking method，Chinese culture （7） /gru：/ more rapidly over the next several centuries．That's because ideas were much easier to share （8） more people learned to read．The use of paper spread abroad，helping （9） /'ʌðə/ cultures record and spread their ideas．Today，Cai Lun is considered a national hero in China．But
（10） whole world should remember the clever Chinese papermaker forever．
so…that
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wonderful，travel
．
like，new
．
used to
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