四级英语模拟试题及答案
姓名：____________________
一、选择题（每题2分，共20分）
1.Theteacheraskedthestudentsto________theirhomeworkbeforetheclassbegan.
A.turnin
B.turnon
C.turnoff
D.turnout
2.Itissaidthatthenewlibrarywillbe________nextyear.
A.opened
B.closed
C.built
D.finished
3.Thegovernmenthasdecidedto________theminimumwageto$10perhour.
A.raise
B.lower
C.increase
D.decrease
4.Thedoctoradvisedthepatientto________smokingandeatingmorevegetables.
A.giveup
B.givein
C.giveoff
D.giveout
5.Thecompanyhas________anewpolicytoreduceemployeeturnover.
A.established
B.developed
C.introduced
D.created
二、阅读理解（每题2分，共20分）
Readthefollowingpassageandanswerthequestionsbelow.
TheInternethasbecomeanintegralpartofourdailylives.Ithasrevolutionizedthewaywecommunicate,accessinformation,andconductbusiness.However,withtheconvenienceandbenefitsthatcomewiththeInternet,therearealsorisksandchallengesthatweneedtobeawareof.
Oneofthemajorconcernsisprivacy.Withthevastamountofpersonalinformationavailableonline,thereisariskofidentitytheftandunauthorizedaccesstosensitivedata.Itisimportanttobecautiousaboutsharingpersonalinformationandtousestrongpasswordstoprotectouraccounts.
Anotherchallengeisinformationoverload.Withsomuchinformationavailable,itcanbedifficulttodiscernwhatisaccurateandreliable.Itisimportanttocriticallyevaluatethesourcesofinformationandtobewaryoffakenewsandmisinformation.
Inaddition,theInternethasalsoraisedethicalconcerns.Theeaseofaccessingandsharingcontenthasledtoissuessuchascopyrightinfringementandplagiarism.Itisimportanttorespectintellectualpropertyrightsandtousecontentresponsibly.
6.WhatisoneofthemajorconcernsrelatedtotheInternet?
A.Privacy
B.Communication
C.Informationaccess
D.Businessopportunities
7.Whatisthemainchallengeofin