Have you ever heard of e﹣waste（电子垃圾）？How do you deal with your Mp4players， mobile phones and your computers when they're broken or you want a new one？
Most people just throw them away． With the（21） of electronic industry， e﹣waste pollution has become a serious problem． According to the UN， in 2014， people around the world produced 41.8million tons of e﹣waste and only（22） less than 20% of it． The USA was（23） waster in the world， producing 7.1million tons． China came second，（24） 6million tons．
It's important to pay attention to e﹣waste． It can be（25） valuable or harmful， depending on what we do with it． E﹣waste is a valuable urban mine（城市矿藏）． The value of the metals， like gold and silver is（26） ． And the metals can be reused， but if people throw them away， the toxic（有毒的） chemicals can（27） the earth or air， they will affect the environment and people's health．
Now， Apple recycles people's used products in China when they're buying new（28） ． The company will test and repair them and then sell them at lower prices．（29） e﹣waste， we can buy longer lasting electronic products． If you don't want your electronics， find a new home for them． You can also take them to see（30） companies can offer recycling programs．
21． A． developing |
B． developed |
C． development |
22． A． recycled |
B． rebuilt |
C． researched |
23． A． big |
B． bigger |
C． the biggest |
24． A． during |
B． with |
C． between |
25． A． both |
B． either |
C． neither |
26． A． amazing |
B． disappointing |
C． boring |
27． A． get up |
B． get into |
C． get on |
28． A． them |
B． those |
C． ones |
29． A． To increase |
B． To reduce |
C． To keep |
30． A． that |
B． where |
C． whether |
It is （难以置信的）that AI has progressed in such a rapid way in the past few years．
You should get your parents' （agree）before you leave for London．
Nowadays， the education of （安全）has caught the attention of the whole society．
It is reported that h of houses fell down and many people died in the earthquake．
Xi'an celebrated the first﹣ever China Hanfu Day （1） April 18．There were catwalk shows（走秀）and traditional music concerts which （2） （hold）by people wearing traditional Chinese clothing．Hanfu fans from all over China gathered there to take （3） （photo）and put them online for a Hanfu photo competition，which lasted until May 18．
China Hanfu Day is on the third day of the third （4） of the Chinese lunar calendar（农历），which is said to be the birthday of the Yellow Emperor．In ancient China，this day was also known （5） Festival（上巳节）．Its purpose is to encourage young Chinese（6） （take）pride in traditional clothing，as well as Chinese culture．
Hanfu is the traditional clothing of the Han people who lived in China before the Qing Dynasty．It has a history of about 3，000 years and it（7） （change）greatly so far．However，some of（8） （it）main characteristics（特点）remain．For example，there are two parts that overlap（交叠）on the front，which is called "jiao ling"．Another main characteristic of Hanfu is that it usually uses ribbons（系带）instead of buttons．
China is becoming a leading country in the world，and the Chinese public feels more confident（自信的）about its traditional culture （9） ever before．Wearing traditional clothing might be an interesting way of showing （10） they feel about this．