已知点$p\left(x,3\right)$是角$\theta$终边上一点，且$\cos \theta =-\frac{4}{5}$，则x的值为（ ）

    You may be surprised to see "making sure children never suffer" as a mistake. The following 1 may help you understand how rescuing children from all suffering 2 weakness.

    A little boy felt sorry for a butterfly struggling to 3 from its chrysalis（蛹）. He decided to 4 the butterfly. So he peeled（剥开） the chrysalis open for the butterfly. The little boy was so 5 to watch the butterfly spread its wings and fly off, into the sky.

    Then he was horrified 6 he watched the butterfly fall to the ground and die because it did not have the muscle 7 to keep flying. In fact, the butterfly's struggle to 8 the chrysalis helps the butterfly become stronger.

    Like the little boy9 too often want to protect their children from struggle in the 10 of love. They don't realize that their children need to struggle, to experience 11, to deal with disappointment, and to solve their own problems. Only in this way can children 12 their emotional strength, become strong-willed and develop the skills necessary for the even bigger struggles they will meet 13 their lives. Children experiencing sufferings can 14 the ups and downs of life.

    However it isn't helpful either in this case when parents 15 lecture（训斥）, blame and shame to what the child is experiencing. Mothers 16 to say, "Stop crying and act-ing like a spoiled boy. You can't always get what you want: These 17 words should be avoided.

    Instead, parents can offer loving support. You can say, "Don't lose 18. Be brave！You will succeed if you try again."Then comes the tough part — no 19and no lectures. Simply allow him to discover that he can get over his disappointment and 20 what he can do to get what he wants in the future.

阅读下面的文字，完成1-3题。

令人警惕的网络低俗语言

①6月2日，人民网舆情监测室发布《网络低俗语言调查报告》。报告显示，按照原发微博提及量排行，有25个网络低俗词语上榜，其中，“尼玛”位居第一，“你妹”“矮矬穷”“我靠”“滚粗”等榜上有名。

②报告指出，网络低俗语言产生共有四大途径。—是生活中的脏话经由网络变形而受到广泛传播；二是词谱因输入法运用而呈现出象形创造；三是英文发音的中文化、方言发音的文字化使网络低俗语言不断翻新；四是网民自我矮化、讽刺挖苦的创造性词语。

③网络低俗语言的使用，主要有以情绪发泄为目的的网络谩骂、以恶意中伤为手段的语言暴力、以粗鄙低俗为个性的网民表达等三方面的现象。部分网民在不深入了解事实的情况下，将情绪性的谩骂宣泄向公共空间。现实社会里的粗鄙化市侩化的语言也在互联两上蔓延开来，并经由网络再创造，如野草一般疯长，论坛、微博、微信中广泛应用的污言秽语污染了语言环境的清洁。据统计，2014年全年中，12个网络低俗用词的原发微博数量达到百万次以上，4个网络低俗用词的原发微博数量达到了千万次以上。

④值得注意的是，网络语言低俗化向传统媒体转移已有显现，—些网络低俗用语竟堂而皇之地成为某些报纸的标题，某些主持人在电视节目中公然把“屌丝”等低俗用语常挂嘴边。部分文化载体无视媒体的社会责任，也加入到了语言暴力的恶俗狂欢乏中。

⑤上述情况，引起了许多有识之士的警惕。专家表示，清理网络低俗语言势在必行，只要多措并举，积极推动线上线下舆论生态的良性互动，努力净化网络语言环境，就一定能为中国改革事业提供稳定的网络民意基盘。

（《选自《人民文摘》，有删改）