二、Word spelling(单词拼写)10分 1.It's _________(不必要)to spend so much money on clothes. 2.Everything has its own advantages and d_________. 3.Setting up a car factory here can help develop the e_________in this area. 4.In the 18th and 19th centuries scientists made many important _________(发现). 5.A condenser is used to collect and store e_________. 6.It usually takes four hours to get my cell phone fully c_________. 7.Do you know what material _________(传导)electricity and heat best? 8.Don't pull the cloth so hard.It _________(撕)easily. 9.How do you feel animal experiments? Do you think it c_________. 10.There is no d_________ about his honesty.