（改编自WY版八上U5课文）Think 20 years back when chatting face to face with loved ones far away was a dream. Nowadays, the internet has made it 1. piece of cake! There are so many netizens, that is, citizens on the internet. We can get in touch with 2. with just one click, 3. the internet has also brought new risks. Here are the basic rules you need to know to stay safe online.
First, keep your personal information 4. . Avoid posting your full name, phone number or address online. Second, use a 5. and long password for your online accounts and change it often. Third, be aware of strangers—never meet them in real life, as they may 6. you. Fourth, think 7. before you make social media 8. , because your words 9. others if you are not careful. Finally, if you face cyberbullying, turn to your parents or teachers for help. You don’t have to deal with it 10. .

【语篇导读】本文主要介绍了在互联网时代,网络虽让联系变得便捷,却也带来了新的风险,并给出了五条核心网络安全规则,用以指导人们安全上网。
1. a 句意:如今,互联网让这变成了一件轻而易举的事! a piece of cake 是固定搭配,意为"小菜一碟;轻而易举的事"。
2. anyone 句意:我们只需要点击一下,就能与任何人取得联系,但互联网也带来了新的风险。上文提到网民数量众多,此处强调互联网的连接功能,即可以联系到"任何人"。anyone 为不定代词,作介词 with 的宾语,符合语境。
3. but 句意:我们只需要点击一下,就能与任何人取得联系,但互联网也带来了新的风险。前半句讲"联系方便",后半句讲"新风险",空处前后之间为转折关系,应用连词 but 连接两个分句。
4. private 句意:首先,要对个人信息保密。"keep sth+adj."意为"使某物保持……"。private 意为"隐秘的;秘密的","keep your personal information private"是网络安全的核心原则,即"对个人信息保密"。
5. strong 句意:第二,为你的网络账户设置一个高强度且长的密码,并经常更换它。and 连接前后两个并列的形容词,此处应填与 long 表示并列的形容词,共同修饰名词 password。strong"强大的"符合语境。
6. cheat 句意:第三,要注意陌生人——永远不要在现实生活中和他们见面,因为他们可能会欺骗你。情态动词 may 后接动词原形。结合语境可知,陌生人存在潜在危险,"欺骗"是陌生人可能实施的行为,cheat 符合语境。
7. carefully 句意:第四,在发布社交媒体帖子之前,你要仔细思考,因为如果你不够小心,你的话可能会伤害到别人。分析句子结构可知,此处需要用副词修饰动词 think,think carefully 意为"仔细考虑",符合语境。
8. posts 句意:第四,在发布社交媒体帖子之前,你要仔细思考,因为如果你不够小心,你的话可能会伤害到别人。social media posts 是固定搭配,意为"社交媒体帖子"。此处用复数形式 posts,表示泛指各类帖子,符合日常表达习惯。
9. will hurt 句意:第四,在发布社交媒体帖子之前,你要仔细思考,因为如果你不够小心,你的话可能会伤害到别人。本句包含条件状语从句,主句应用一般将来时。结合语境可知,hurt"(使)疼痛"符合语境,应填 will hurt。
10. alone 句意:你不必独自处理这件事。分析句子结构可知,此处需要用副词修饰动词短语 deal with。根据"turn to your parents or teachers for help"可知,此处强调不必独自面对,alone"独自"符合语境。

Ⅴ. 阅读还原
Most children love to ride bikes. 1. If you know the following rules, you'll be safe.
2. There are many different styles and sizes to choose from. When you buy a helmet, make sure it fits.
Ride along the right-handed side of the road if you aren't going to make a left turn or pass other people.
When you want to cross a busy street, you'd better get off your bike and wait for the green light, then walk across the street.
Keep your eyes and ears open. Do not wear headphones. 3. Stop at all the stop signs.
When you ride with a friend, do not ride next to each other. 4.
Keep your bike clean, well-oiled and in good repair. 5. Or it could make you have an accident.

A. Look for signs and listen for the sounds of traffic.
B. But every year many children are injured while riding bikes.
C. Don't cross the road when the traffic lights are red.
D. Make sure everything is working well.
E. Always wear a helmet(头盔).
F. Many students go to school by bike every day.
G. Ride one after the other.

【语篇导读】本文介绍了骑自行车需要注意的规则和建议。
1. B 根据上文"Most children love to ride bikes"以及下文"If you know the following rules, you'll be safe."可知,此处说的是骑自行车安全这个话题;结合选项可知,B项"但是每年有很多孩子在骑自行车时受伤"符合语境。
2. E 根据下文"There are many different styles and sizes to choose from. When you buy a helmet, make sure it fits."并结合选项可知,此处说的是头盔,E项"时刻都要戴头盔"符合语境。
3. A 根据上文"Keep your eyes and ears open. Do not wear headphones."以及下文"Stop at all the stop signs."可知,此处说的是注意听和看;结合选项可知,A项"寻找交通标志,留心听行驶车辆的声音"符合语境。
4. G 根据上文"When you ride with a friend, do not ride next to each other."可知,此处说的是骑车时不要并排骑行;结合选项可知,G项"一个接一个地骑"符合语境。
5. D 根据上文"Keep your bike, clean, well-oiled, and in good repair."可知,此处说的是要保证安全,自行车自身状况要好;结合选项可知,D项"确保一切运转正常"承上启下,符合语境。