精编优选练(四十八)核心词汇基础回扣12(限时：25分钟)S.写出单词的正确形式1sad sadness n.2safe safety n. safely adv. 3satisfy satisfied/satisfactory adj. satisfaction n.4science scientific adj.5secret secretary n. 6secure security n.7see saw (过去式) seen (过去分词)8sell sold (过去式)sold (过去分词)9send sent_ (过去式)sent (过去分词)10separate separated adj.11serious seriously adv.12serve service n.13set set (过去式) set (过去分词)14shake shook (过去式) shaken(过去分词)15sharp sharply_adv.16shine shone (过去式)shone (过去分词)17short shortage n.18shut shut_ (过去式) shut (过去分词)19similar similarity n. similarly adv.20simple simply adv.21sink sank (过去式) sunk (过去分词)22smell smelled/smelt(过去式)smelled/smelt(过去分词)23smooth smoothly adv.24speak spoke_(过去式)spoken (过去分词)25speed sped/speeded (过去式) sped/speeded (过去分词)26spend spent (过去式)spent (过去分词)27spread spread (过去式)spread (过去分词)28stand stood (过去式)stood (过去分词)29strange stranger n.30strong strength_ n. strengthen vstrongly adv.31success successful adj. successfully adv. succeed v.32sudden suddenly adv.33suggest suggestion n.34surprise surprised/surprising adj. surprisingly adv.单词拼写1Do you spend much time searching(寻找)through dictionaries for words to use?2The policeman seized (抓住)him by the collar.3He sensed (感知)his suggestion was unwelcome.4As we joined the crowd，I got separated (分开)from my friends.5He hated sharing (分享)a bedroom with a stranger.6While driving cars, the drivers must pay attention to the road signs (标记)7Tom remained silent (沉默)when spoken to.8We cant stress (强调) the importance of protecting the environment too much.单句语法填空1We will change our investment direction next year. I sincerely (sincere) believe that this is a right decision.2You can enjoy all the water sports, or simply (simple) lie on the beach.3Dr Wang, an AIDS specialist (special), often says that little knowledge is a dangerous thing and that AIDS education should be imparted to everyone.4Millions of people will face starvation (starve) next year as a result of the drought.5They believe that competitions strengthen (strong) the national character rather than weaken it.6. The surroundings (surround) here are very quiet, and it is a nice place to take a holiday.7Id like to hear suggestions (suggest) for ways of raising money.8We want to extend our congratulations on your successful (succeed) completion of the project.单句改错(请按照高考要求在原句上修改)1The blue dress suits for you well, and you look extremely beautiful in it.答案：The blue dress suits you well, and you look extremely beautiful in it.2What I said is very important. You should take it serious.答案：What I said is very important. You should take it .3It was sunny and then all of sudden, it clouded over and began to rain.答案：It was sunny and then all of sudden, it clouded over and began to rain.4The company is eager to serve its customers heart and soul.答案：The company is eager to servefor its customers heart and soul.5The astronauts photographed the rise of the sun in the space.答案：The astronauts photographed the rise of sun in the space.补全句子1Alice was_supposed_to_study (应该学习) at home, but her mother found her surfing the Internet.2Luckily there was a doctor on_the_spot (在现场) when the accident happened.3To_my_surprise (令我感到惊奇的是), every student looked at me in_surprise (惊奇地) when I came into the classroom.4Look! The front part of the car is now totally out_of_shape (变形) due to the crash.5I found an old man fell into a pool, but quickly he _struggled_to_his_feet_(挣扎着站起来) . .短文改错As is often the case, when people are attending meetings, having meals or waiting for buses, you can always find it addicted to their phones, completely ignore others. This is really a common phenomenon in our life. The reason is because smartphones nowadays can be used for people to play mobile games but keep in touch with friends through QQ and WeChat. However, too many exposure to phones is bad for people in term of health. Moreover, people who were engaged in phones fail to communicate well those around them. As far as Im concerned, people should wise make use of their phones to help with their work and study. In addition to, they should care more about their family members and friends rather than smartphones.答案：As is often the case, when people are attending meetings, having meals or waiting for buses, you can always find addicted to their phones, completely others.This is really a common phenomenon in our life. The reason is smartphones nowadays can be used for people to play mobile games keep in touch with friends through QQ and WeChat. However, too exposure to phones is bad for people in of health. Moreover, people who engaged in phones fail to communicate well those around them. As far as Im concerned, people should make use of their phones to help with their