连词&amp介词专项练习

连词 单项填空 请从每题所给的选项中选出可以填入空白处的最佳答案。 ()1.[2019·黑龙江绥化]I think you ll miss the train ______you hurry up. A．ifB．andC．unless ()2.[2019·贵州毕节]Bill，stop smoking，______ you ll get better soon. A．but C．or B．after D．and ()3.[2019·甘肃武威]______it rained a lot，we enjoyed our holiday. A．Although C．Unless B．Because D．However ()4.[2019·山东菏泽]______my grandpa is over 80 years old ， he still looks strong and healthy. A．Although C．Unless ()5.[2019·内蒙古包头]Give me your email address，______I ll send you the . A．orB．andC．butD．nor B．Because ()6.[2019·辽宁铁岭]Mr Smith knows a lot about China ______he has never been to our country. A．although C．if B．until D．since ()7.[2019·辽宁葫芦岛]As students， we must study hard.______ ， we should care for our health. A．At the same time B．On the one hand C．All in all D．In the end ()8.[2019·辽宁葫芦岛]The football fans cheered ______they heard the exciting news. A．even though C．as soon as B．in order that D．as long as ()9.[2019·广西河池]I know her face______I can t remember her name. A．and C．so B．but D．or ()10.[2019·河南]Before you ask someone for help ，find out ______ he is the right person for your problem. A．since C．whether B．that D．unless ()11.[2019· 山西]You can t decide whether or not you like something until you try it，______ it s important to try something new. A．butB．orC．so ()12.[2019·云南昆明]______we continue to kill elephants for their ivory ， we humans will lose them in the end. A．If C．Until B．Before D．Although ()13.[2019·四川凉山]In summer，food will go bad quickly ______ we put it into a fridge. A．if C．as soon as B．unless D．when ()14.[2019·山东临沂]A break between classes is a good time for students to play sports and talk with their classmates.So it ______helps with students health， ______improves their social skills. A．either；or B．neither；nor C．not only；but also ()15.[2019·山东临沂]A recent survey shows that 44 percent of Americans want to use selfdriving cars，______34 percent believe that they will make the roads more dangerous. A．although C．if ()16.[2019·江苏扬州 ]Facial recognition(人脸识别 )technology is widely used for payment.______ ，we needn t enter the passwords any more. A．For example C．What s worse B．As a result D．What s more B．because ()17.[2019·福建]______ it s a public holiday today，some firefighters in our city are still on duty. A．Although C．If ()18.[2019·江苏宿迁]Santaishan Forest Park is ______beautiful that it has become a hot tourist attraction. A．so C．such B．very D．quite B．Once ()19.[2019·黑龙江哈尔滨]—Which sport do you prefer，volleyball ______ basketball? —I prefer volleyball. A．orB．andC．but ()20.[2016·上海]The flight was delayed by the storm，______the passengers had to wait at the airport. A．but C．so B．or D．for ()21.[2016·陕西]The dress is really beautiful ，______it is too small for me. A．orB．butC．soD．and ()22.[2016·河北]Victoria，hurry up！______we can t arrive there on time. A．Or C．But B．So D．And ()23.[2016·江西]Last night， the shop was closed ______ she didn t buy any chocolate. A．so C．or B．if D．when ()24.[2016·黑龙江哈尔滨]—I want to travel to the Black Bear Island ne