1.2021年下半年英语六级作文押题
题目：Directions: For this part, you are allowed 30minutes to write a short essay entitled The Damageof E-waste. You should write at least 150 wordsfollowing the outline given below.
1. 随着电子设备的增多，电子垃圾也越来越多
2. 电子垃圾的危害很多
3. 为此，我们应该……
范文：
The Damage of E-waste
Electronic waste, or e-waste, has become anissue of serious concern to the public as a growingnumber of electronic items are discarded in landfillsevery year. Many consumers are not aware that electronics like computers and cell phonesactually contain toxins that can leach out into the soil and damage the environment.
E-waste compounds pose hazards to the environment as well as the human beings. Tostart with, when exposed to heat, the components of e-waste release toxic fumes and gas,polluting the air and causing global environmental problems. When circuit breakersdeteriorate, they release toxins, such as mercury, that pollute groundwater. In addition toits damaging effect on the environment, researchers have now linked e-waste to adverseeffects on human health.
In my view, it’s high time that the damage of e-wasted should be realized by the public andmeasures should be taken to cope with this issue. One idea is to put greater responsibility onthe companies that produce the goods. It should be mandatory for them to taking theabandoned items back and dispose them in an environmentally-friendly manner.
2.2021年下半年英语六级作文押题
“人工智能”“AI”等词都是最近大火的词，很明显，现在人工科技的发展已经触及到我们的生活，餐厅里人工上菜，生产间人工加工，电脑人工计算，家中人工做家务。英语六级写作范文
今天，随着科技的快速发展，人工智能比人们想象中走得更远，比如机器人。现在有了第一个成为公民的机器人，这让许多人感到恐慌。许多科学家预测，总有一天机器人将取代人类，不仅在体力劳动方面，还在思想上。这是多么可怕啊。据说科学家们看到了两个机器人通过创建新的语言在讨论，然后他们决定关掉机器，让它们停止工作。他们显然知道将来可能发生的危险。大多数人认为机器人将来可能会有自我意识，但科学家们仍然富含激情去探索机器人，完善所有的事情。但是没有人能确保他们可以为人类带来什么。
Today,withthefastdevelopmentofscienceandtechnology,theartificialintelligencehasgonemuchfurtherthanpeoplecanimagine,suchastherobot.Nowthefirstrobotisadmittedtobeacitizen,whichscaressomanypeople.Manyscientistshadpredictedthatsomedayrobotswouldreplacehumanbeingnotonlyinphysicalwork,butalsoinminds.Howterribleitwouldbe.Itissaidthatscientistssawtworobotsdiscussingbycreatinganewlanguage,thentheydecidedtoturndownthemachineandmadethemstopworking.Theyknewclearlythedangermayhappeninthefuture.Mostpeoplehavethoughtaboutself-consciousnessthatrobotmayhavesomeday,butscientistsstillhavealotofpassioninsearchingtherobots.Theywanttocompleteeverything.Butnoonecanmakesurewhattheycanbringforhumanbeing.
machinelearning机器学习learningalgorithm学习算法feature特征attribute属性attributespace样本空间samplespace样板空间
dataset数据集instance示例sample样板featurevector特征向量dimensionality维度hypothesis假设ground-truth真相真实label标记
classification分类regression回归binaryclassification二分类positiveclass正分类negative负分类multi-classclassification多分类
clustering聚类cluster簇supervisedlearning监督学习unsupervisedlearning无监督学习generalization泛化能力distribution分布
Occam'srazor奥卡姆剃刀inductivebias归纳偏好
3.2021年下半年英语六级作文押题
英语六级写作范文In recent years there has been a dramatic rise in the cell phones, which are now essential to millions of people as a convenient form of communication. In 2004 the number reached315,000,000, with an average annual increase at 57,500,000.
Some people can now no longer imagine life without their cell phones. The fact that theyare so popular proves that they are useful and convenient. Cell phones enable people toeasily and quickly communicate with one another; wherever you are, you can instantly reachsomebody. Cell phones eliminate the trouble of not being able to meet someone in person,and therefore increase business's efficiency.
Mobile phones necessarily also harbor disadvantages. The radiation such phones emit ishazardous to one's health. Furthermore, if people become too reliant on the use of cell phones,our face to face skills may decline. Any new invention has its drawbacks, and such negativeaspects cannot always diminish its popularity. Despite the negative effects of television, forexample, the number of people who own televisions continues to grow at a tremendous rate.This is also the case with mobile phones. People won't stop eating just because of the riskofchoking. In addition, the swift development of science and technology will likely eliminatethe hazards cell phones may cause. One can safely predict, therefore, that with theintroduction of new techniques, mobile phones will have more applications and become evenmore appealing to customers.
