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MOCK TEST 1 Which of the following can be inferred about microplastics and human health?

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The Impact of Microplastics
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Microplastics, small plastic particles less than 5 millimeters in diameter, are increasingly found in our environment. These particles originate from larger plastic debris that breaks down over time and from products like cosmetics and clothing. Microplastics have been detected in marine and freshwater systems, soil, and even the air we breathe.

The presence of microplastics in water bodies poses a serious threat to aquatic life. Fish and other marine organisms ingest these particles, leading to physical harm and toxic effects. Studies show that microplastics can accumulate in the tissues of these organisms, potentially affecting their growth and reproduction. The impact on food chains and ecosystems is profound, as smaller organisms are consumed by larger ones, leading to a buildup of microplastics through the food chain.

Humans are also affected by microplastics. Research indicates that microplastics can enter the human body through ingestion and inhalation. The long-term health effects are still being studied, but there are concerns about their potential to cause inflammation and disrupt hormonal functions. Efforts to mitigate the impact of microplastics include improving waste management practices and developing biodegradable alternatives. Raising awareness about the sources and dangers of microplastics is crucial for reducing their presence in the environment.

4.Which of the following can be inferred about microplastics and human health?

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正确答案:A
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1. 题干:Which of the following can be inferred about microplastics and human health? 关于微塑料和人类健康,可以推断出以下哪一项? 2. 分析:题目类型:推断题。解题策略:基于文章关于人类健康部分的明确陈述,进行一步合理的逻辑延伸或总结。 3. 定位信息理解:原文定位:第三段第二、三句:“The long-term health effects are still being studied, but there are concerns about their potential to cause inflammation and disrupt hormonal functions.” 信息理解:该句明确指出,微塑料的长期健康影响“仍在研究中”(are still being studied),同时表达了对其潜在危害的担忧(concerns)。 4. 分析选项:(A) The long-term effects of microplastics are not well understood. (微塑料的长期影响尚未被充分了解。) - 分析:这与定位句“仍在研究中”的意思相符。如果正在研究中,就意味着尚未有明确结论,即“尚未被充分了解”。此为正确答案。 (B) Microplastics are more harmful when eaten than when breathed in. (微塑料被吃进去时比被吸进去时更有害。) - 分析:文章提到可通过摄入和吸入两种途径进入人体,但完全没有对两者的危害程度进行比较。 (C) Increased awareness has helped make microplastics less dangerous. (提高意识有助于降低微塑料的危害性。) - 分析:文章最后提到提高意识对减少环境中微塑料存在很重要,但并未说这已经“降低了其危险性”。这是对未然(目标)和已然(结果)的混淆。 (D) Only the short-term effects of microplastics are currently being studied. (目前只有微塑料的短期影响正在被研究。) - 分析:与原文意思相反。原文明确说“长期健康影响仍在研究中”。

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