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沪教版八年级上册英语Unit3语法填空专项训练100题
My brother spends two hours ______ (surf) the Internet every day.
We should learn how ______ (protect) our personal information online.
The new app ______ (download) by millions of users since last month.
If you ______ (not follow) the rules, you will be banned from the platform.
This website offers ______ (value) resources for students.
While my father ______ (watch) a video, the computer suddenly crashed.
It's important ______ (keep) your password safe.
The game ______ (design) by a group of young engineers last year.
By the end of this year, we ______ (use) this software for three years.
She asked me if I ______ (hear) of the new social media platform.
The teacher warned us against ______ (share) too much private information online.
A lot of waste paper ______ (save) since we started using digital documents.
You ______ (should) click on unknown links, it's dangerous.
He ______ (not reply) to my message yet, maybe he's busy.
The students are taught how ______ (use) the online library properly.
When I got home, my sister ______ (already finish) her online homework.
Digital technology ______ (change) our lives greatly in the past decade.
Would you mind ______ (turn) down the volume of your video
The problem ______ (solve) by the technical support team soon.
If more people ______ (realize) the importance of digital safety, there will be fewer cybercrimes.
My parents don't allow me ______ (chat) with strangers online.
The online course ______ (take) by over 500 students so far.
I ______ (study) online when the power went out yesterday.
It's necessary for us ______ (learn) about digital etiquette.
The new update of the app ______ (make) it more user-friendly next week.
She suggested ______ (set) up a family sharing account.
By the time you arrive, I ______ (complete) the online registration.
The old computer ______ (replace) with a new one last week.
If we ______ (not limit) our screen time, it will affect our health.
He is good at ______ (edit) videos using professional software.
The online meeting ______ (hold) at 3 o'clock tomorrow afternoon.
I wonder if you ______ (help) me with this digital device.
They ______ (use) this e-learning platform for two years now.
It's not easy ______ (distinguish) between real and fake news online.
The data ______ (analyze) by the experts right now.
My little brother is interested in ______ (play) online games.
The company ______ (launch) a new digital product by next month.
You ______ (must) not post inappropriate content on social media.
When ______ (introduce) to the new software, she felt a bit confused.
The number of online shoppers ______ (increase) rapidly in recent years.
We plan ______ (attend) a digital literacy workshop next weekend.
The email ______ (send) to all the members before the meeting.
I ______ (not check) my messages yet today, I've been too busy.
It's important that we ______ (respect) others' privacy online.
The digital library ______ (visit) by thousands of readers every day.
While ______ (browse) the Internet, I found some interesting articles.
She ______ (not know) how to use this function until I showed her.
The online test ______ (complete) by most students in an hour.
If you ______ (have) any problems, please contact our online support.
We ______ (teach) how to use digital tools since we entered middle school.
He denied ______ (hack) into the system, but the evidence showed otherwise.
The new digital policy ______ (implement) next semester.
By this time next year, I ______ (master) all the basic digital skills.
It's better ______ (backup) your important files regularly.
The video call ______ (interrupt) several times because of poor signal.
My parents encourage me ______ (participate) in online learning communities.
The computer virus ______ (spread) through infected email attachments.
I ______ (use) this social media app for five years, and I still like it.
They are considering ______ (upgrade) their digital infrastructure.
The online survey ______ (conduct) to collect users' opinions last month.
If you ______ (follow) these steps, you can install the software easily.
It's difficult ______ (avoid) all the advertisements online.
The digital art exhibition ______ (visit) by over 10,000 people so far.
She ______ (chat) with her friend online when her mother came in.
We ______ (advise) to use strong passwords by the IT teacher.
He is looking forward to ______ (buy) a new tablet for online studying.
The system ______ (update) automatically every night.
I ______ (not realize) how much time I spent online until my parents reminded me.
It's essential that students ______ (learn) digital skills for their future.
The online concert ______ (watch) by millions of people around the world.
My sister taught me how ______ (edit) photos using a phone app.
The digital textbook ______ (publish) by this publishing house next year.
By the time the meeting starts, I ______ (prepare) all the digital materials.
They regret ______ (share) that sensitive information online.
The Wi-Fi signal ______ (improve) since the new router was installed.
It's important for us ______ (be) responsible digital citizens.
The online course ______ (teach) by a famous professor from Harvard.
I ______ (use) this laptop for online classes since last year.
She suggested that we ______ (limit) our screen time before bed.
The new digital payment system ______ (adopt) by many stores recently.
He forgot ______ (save) his online work, so he had to do it again.
The online competition ______ (organize) by our school every year.
If I ______ (know) about this app earlier, I would have used it.
They are used to ______ (communicate) with each other through video calls.
The digital archive ______ (preserve) many important historical documents.
I ______ (wait) for the online approval for three days, but I haven't got it yet.
It's not good ______ (compare) yourself with others on social media.
The software ______ (test) thoroughly before it was released.
When ______ (ask) about his digital habits, he said he used his phone too much.
We ______ (not have) such convenient digital services ten years ago.
She hopes ______ (develop) her own app in the future.
The online game ______ (play) by people of all ages around the world.
I ______ (read) an interesting article about digital trends when you called.
It's advisable ______ (log out) of your accounts when using public computers.
The digital transformation ______ (happen) in all industries now.
They denied ______ (copy) the digital content without permission.
The new digital library ______ (open) to the public next month.
If we ______ (invest) more in digital education, our students will benefit.
I ______ (be) a member of this online community for three years.
The digital certificate ______ (issue) to successful candidates next week.
答案解析
surfing
解析：spend time (in) doing sth. 是固定搭配，意为 “花费时间做某事”，故填 surfing。
to protect
解析：how to do sth. 是 “疑问词 + 不定式” 结构，在句中作宾语，故填 to protect。
has been downloaded
解析：由 since last month 可知用现在完成时，且 app 与 download 是被动关系，故填 has been downloaded。
don't follow
解析：if 引导的条件状语从句，遵循 “主将从现” 原则，故填 don't follow。
valuable
解析：此处需用形容词修饰名词 resources，value 的形容词形式是 valuable，故填 valuable。
was watching
解析：while 引导的时间状语从句，强调主句动作发生时从句动作正在进行，由 crashed 可知用过去进行时，故填 was watching。
to keep
解析：It's important to do sth. 是固定句型，it 为形式主语，不定式是真正主语，故填 to keep。
was designed
解析：由 last year 可知用一般过去时，且 game 与 design 是被动关系，故填 was designed。
will have used
解析：by the end of this year 是将来完成时的标志，故填 will have used。
had heard
解析：宾语从句中，主句是一般过去时，从句用相应的过去时态，“听说” 发生在 “问” 之前，用过去完成时，故填 had heard。
sharing
解析：warn against doing sth. 是固定搭配，意为 “警告不要做某事”，故填 sharing。
has been saved
解析：由 since 可知用现在完成时，且 waste paper 与 save 是被动关系，故填 has been saved。
shouldn't
解析：根据句意 “点击不明链接很危险”，可知此处表示 “不应该”，故填 shouldn't。
hasn't replied
解析：由 yet 可知用现在完成时，故填 hasn't replied。
to use
解析：how to do sth. 作宾语，故填 to use。
had already finished
解析：when 引导的时间状语从句用一般过去时，主句动作发生在从句之前，用过去完成时，故填 had already finished。
has changed
解析：in the past decade 是现在完成时的标志，故填 has changed。
turning
解析：mind doing sth. 是固定搭配，意为 “介意做某事”，故填 turning。
will be solved
解析：由 soon 可知用一般将来时，且 problem 与 solve 是被动关系，故填 will be solved。
realize
解析：if 引导的条件状语从句，“主将从现”，故填 realize。
to chat
解析：allow sb. to do sth. 是固定搭配，意为 “允许某人做某事”，故填 to chat。
has been taken
解析：由 so far 可知用现在完成时，且 course 与 take 是被动关系，故填 has been taken。
was studying
解析：when 引导的时间状语从句用一般过去时，主句动作正在进行，用过去进行时，故填 was studying。
to learn
解析：It's necessary for sb. to do sth. 是固定句型，故填 to learn。
will make
解析：由 next week 可知用一般将来时，故填 will make。
setting
解析：suggest doing sth. 是固定搭配，意为 “建议做某事”，故填 setting。
will have completed
解析：by the time 引导的时间状语从句，主句用将来完成时，故填 will have completed。
was replaced
解析：由 last week 可知用一般过去时，且 computer 与 replace 是被动关系，故填 was replaced。
don't limit
解析：if 引导的条件状语从句，“主将从现”，故填 don't limit。
editing
解析：be good at doing sth. 是固定搭配，意为 “擅长做某事”，故填 editing。
will be held
解析：由 tomorrow afternoon 可知用一般将来时，且 meeting 与 hold 是被动关系，故填 will be held。
will help
解析：if 引导的宾语从句，此处表示将来的动作，故填 will help。
have been using
解析：由 for two years now 可知用现在完成进行时，强调动作持续进行，故填 have been using。
to distinguish
解析：It's + adj. + to do sth. 是固定句型，故填 to distinguish。
is being analyzed
解析：由 right now 可知用现在进行时，且 data 与 analyze 是被动关系，故填 is being analyzed。
playing
解析：be interested in doing sth. 是固定搭配，意为 “对做某事感兴趣”，故填 playing。
will have launched
解析：by next month 是将来完成时的标志，故填 will have launched。
must
解析：must not 表示 “禁止”，符合句意 “禁止在社交媒体发布不当内容”，故填 must。
introduced
解析：when 引导的时间状语从句，省略了主语和 be 动词，she 与 introduce 是被动关系，故填 introduced。
has increased
解析：由 in recent years 可知用现在完成时，the number of 作主语，谓语动词用单数，故填 has increased。
to attend
解析：plan to do sth. 是固定搭配，意为 “计划做某事”，故填 to attend。
had been sent
解析：send 发生在 before the meeting 之前，是过去的过去，用过去完成时，且 email 与 send 是被动关系，故填 had been sent。
haven't checked
解析：由 yet 可知用现在完成时，故填 haven't checked。
(should) respect
解析：It's important that 从句中，常用虚拟语气，谓语用 (should)+ 动词原形，should 可省略，故填 (should) respect。
is visited
解析：由 every day 可知用一般现在时，且 library 与 visit 是被动关系，故填 is visited。
browsing
解析：while 引导的时间状语从句，省略了主语和 be 动词，I 与 browse 是主动关系，故填 browsing。
didn't know
解析：由 until I showed her 可知用一般过去时，故填 didn't know。
will be completed
解析：此处表示将来的动作，且 test 与 complete 是被动关系，故填 will be completed。
have
解析：if 引导的条件状语从句，“主将从现”，故填 have。
have been taught
解析：由 since 可知用现在完成时，且 we 与 teach 是被动关系，故填 have been taught。
hacking
解析：deny doing sth. 是固定搭配，意为 “否认做某事”，故填 hacking。
will be implemented
解析：由 next semester 可知用一般将来时，且 policy 与 implement 是被动关系，故填 will be implemented。
will have mastered
解析：by this time next year 是将来完成时的标志，故填 will have mastered。
to backup
解析：It's better to do sth. 是固定句型，意为 “最好做某事”，故填 to backup。
was interrupted
解析：由 because of poor signal 可知用一般过去时，且 call 与 interrupt 是被动关系，故填 was interrupted。
to participate
解析：encourage sb. to do sth. 是固定搭配，意为 “鼓励某人做某事”，
is spread
解析：此处表示客观事实，用一般现在时，且 virus 与 spread 是被动关系，故填 is spread。
have been using
解析：由 for five years 及 still like it 可知用现在完成进行时，故填 have been using。
upgrading
解析：consider doing sth. 是固定搭配，意为 “考虑做某事”，故填 upgrading。
was conducted
解析：由 last month 可知用一般过去时，且 survey 与 conduct 是被动关系，故填 was conducted。
follow
解析：if 引导的条件状语从句，“主将从现”，故填 follow。
to avoid
解析：It's difficult to do sth. 是固定句型，故填 to avoid。
has been visited
解析：由 so far 可知用现在完成时，且 exhibition 与 visit 是被动关系，故填 has been visited。
was chatting
解析：when 引导的时间状语从句用一般过去时，主句动作正在进行，用过去进行时，故填 was chatting。
were advised
解析：由 by the IT teacher 可知用被动语态，结合语境用一般过去时，故填 were advised。
buying
解析：look forward to doing sth. 是固定搭配，意为 “期待做某事”，故填 buying。
is updated
解析：由 every night 可知用一般现在时，且 system 与 update 是被动关系，故填 is updated。
didn't realize
解析：由 until my parents reminded me 可知用一般过去时，故填 didn't realize。
(should) learn
解析：It's essential that 从句中，常用虚拟语气，谓语用 (should)+ 动词原形，故填 (should) learn。
was watched
解析：此处表示过去的动作，且 concert 与 watch 是被动关系，故填 was watched。
to edit
解析：how to do sth. 作宾语，故填 to edit。
will be published
解析：由 next year 可知用一般将来时，且 textbook 与 publish 是被动关系，故填 will be published。
will have prepared
解析：by the time 引导的时间状语从句，主句用将来完成时，故填 will have prepared。
sharing
解析：regret doing sth. 表示 “后悔做过某事”，符合句意，故填 sharing。
has improved
解析：由 since 可知用现在完成时，故填 has improved。
to be
解析：It's important for sb. to do sth. 是固定句型，故填 to be。
is taught
解析：此处表示客观事实，用一般现在时，且 course 与 teach 是被动关系，故填 is taught。
have been using
解析：由 since last year 可知用现在完成进行时，故填 have been using。
(should) limit
解析：suggest that 从句中，常用虚拟语气，谓语用 (should)+ 动词原形，故填 (should) limit。
has been adopted
解析：由 recently 可知用现在完成时，且 system 与 adopt 是被动关系，故填 has been adopted。
to save
解析：forget to do sth. 表示 “忘记要做某事”，符合句意 “他忘记保存在线作业”，故填 to save。
is organized
解析：由 every year 可知用一般现在时，且 competition 与 organize 是被动关系，故填 is organized。
had known
解析：此处是虚拟语气，表示与过去事实相反，if 从句用过去完成时，故填 had known。
communicating
解析：be used to doing sth. 表示 “习惯于做某事”，故填 communicating。
preserves
解析：由语境可知用一般现在时，archive 与 preserve 是主动关系，故填 preserves。
have been waiting
解析：由 for three days 及 haven't got it yet 可知用现在完成进行时，故填 have been waiting。
to compare
解析：It's not good to do sth. 是固定句型，故填 to compare。
had been tested
解析：test 发生在 was released 之前，是过去的过去，用过去完成时，且 software 与 test 是被动关系，故填 had been tested。
asked
解析：when 引导的时间状语从句，省略了主语和 be 动词，he 与 ask 是被动关系，故填 asked。
didn't have
解析：由 ten years ago 可知用一般过去时，故填 didn't have。
to develop
解析：hope to do sth. 是固定搭配，意为 “希望做某事”，故填 to develop。
is played
解析：此处表示客观事实，用一般现在时，且 game 与 play 是被动关系，故填 is played。
was reading
解析：when 引导的时间状语从句用一般过去时，主句动作正在进行，用过去进行时，故填 was reading。
to log out
解析：It's advisable to do sth. 是固定句型，故填 to log out。
is happening
解析：由 now 可知用现在进行时，故填 is happening。
copying
解析：deny doing sth. 是固定搭配，故填 copying。
will be opened
解析：由 next month 可知用一般将来时，且 library 与 open 是被动关系，故填 will be opened。
invest
解析：if 引导的条件状语从句，“主将从现”，故填 invest。
have been
解析：由 for three years 可知用现在完成时，故填 have been。
will be issued
解析：由 next week 可知用一般将来时，且 certificate 与 issue 是被动关系，故填 will be issued。
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