18.More and more teenagers are using the Internet nowadays,but some of them aren't using it in a proper way.If you follow these suggestions,it'll be much (46)safer (安全的)than you might think.
Do not give your password to others and never give out your home (47)address(地址),real name,age,school or phone number to those (48)strangers(陌生人).
Do not share your (49)private (私密的)information in Moments (朋友圈)
Never answer unwanted (50)e-mails (電子郵件).
Be (51)careful(小心的) when you are using public Wi-Fi or scanning QR code (掃二維碼).
Never go and meet anyone you met online (52)without (沒有)your parents'permission and never go (53)alone(單獨(dú)地).
Keep a separate credit (信用)card just for (54)shopping (購(gòu)物)online.This will make it easier to (55)cancel (取消)if something bad happens and your other credit cards can still be used uninfluenced.

分析 這是一篇議論文.文章大意是:如今越來越多的人在使用電腦,但是一些人不能正確使用.如果你按照這個(gè)建議,就會(huì)比你認(rèn)為的要安全的多.
不要把你的密碼給他人,不要泄露你的家庭地址,真實(shí)姓名,年齡,學(xué)校和電話號(hào)碼給那些陌生人.
不要在朋友圈分享你的私人秘密.
不要回復(fù)不需要的郵件.
當(dāng)你用公共網(wǎng)絡(luò)或者掃二維碼的時(shí)候要小心.
不要沒經(jīng)過父母的允許或者單獨(dú)的去見網(wǎng)友.
只用一張信用卡在網(wǎng)上購(gòu)物.如果有不好的事情發(fā)生很容易去注銷,其他的信用卡可以不受影響.

解答 46.答案:safer.根據(jù)后面的than與比較級(jí)連用,表示安全的用safe形容詞,比較級(jí)是加上r,much修飾比較級(jí)safer,故答案是safer.
47.答案:address.這里是放在your形容詞性物主代詞后面,用名詞address地址,前面的home是名詞家庭作為定語,故答案是address.
48.答案:strangers.前面those表示那些,后加名詞復(fù)數(shù),陌生人stranger,復(fù)數(shù)是strangers,故答案是strangers.
49.答案:private.空格處是用來修飾名詞information信息,用形容詞private私密的,故答案是private.
50.答案:e-mails.空格處是作為answer動(dòng)詞回復(fù)的賓語,用名詞e-mail電子郵件,這里是泛指,故用復(fù)數(shù)e-mails,故答案是e-mails.
51.答案:careful.這里是一個(gè)以動(dòng)詞原形開頭的祈使句,be在這里作為系動(dòng)詞,后加形容詞careful小心的,構(gòu)成系表結(jié)構(gòu),故答案是careful.
52.答案:without.結(jié)合后面的your parents'permission是名詞短語,用介詞without表示沒有,后可加名詞,故答案是without.
53.答案:alone.空格處是用來修飾動(dòng)詞go,用副詞alone單獨(dú)地,故答案是alone.
54.答案:shopping.for是介詞,后加名詞代詞或動(dòng)名詞,shop是動(dòng)詞購(gòu)物,動(dòng)名詞是shopping,故答案是shopping.
55.答案:cancel.it在這是形式賓語,后面的動(dòng)詞不定式是真正賓語,構(gòu)成make it+adj+to do sth讓做某事是怎樣的,取消cancel動(dòng)詞,故答案是cancel.

點(diǎn)評(píng) 完形填空題必須進(jìn)行通篇考慮,掌握大意,綜合所學(xué)詞法、句法和常識(shí)進(jìn)行分析判斷,最后再檢查.

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