Plastic pollution is a serious problem，and it's getting worse. Plastic can stay for a long time. Scientists are trying to create plastic that breaks down quickly，but the best way for now is to use less plastic. 1.
Stop using plastic bags. Instead，take your own reusable shopping bag to the store. Every year，people use tons of plastic bags worldwide. Some countries try to stop using plastic bags. 2.
Say no to the straw(吸管). A study showed that around 8.3 billion plastic straws cover the world's beaches. So when you order a drink，say no to the straw，or bring your own reusable one.
3. Carry a reusable water bottle with you. Around the world，nearly a million plastic bottles are thrown away every minute. The problem is so bad that in some countries，stores aren't allowed to sell bottled water any more.
Avoid plastic packaging(包装). 4. It's almost everywhere. But there is something you can do，too：avoid fruit or vegetables packed in plastic.
Recycle what you can. You can't recycle all plastic things. 5. For example，you can recycle bottles and milk or juice bags. In some countries，machines take the bottles and give a little money back for each bottle.
A. They are fresh.
B. Don't buy bottled water.
C. Bottled water is expensive.
D. But it is possible to start small.
E. Here are five tips that can help you.
F. Other countries make customers pay for them.
G. Most things you buy come in plastic packaging.

Passage 1
1. E 2. F 3. B 4. G 5. D

【解析】
1. 第1空：前文提出减少塑料使用是目前应对塑料污染的最佳方法，下文是具体的五条建议，E选项“Here are five tips that can help you.”起到引出下文建议的过渡作用，符合语境。
2. 第2空：前文提到“Some countries try to stop using plastic bags.”，F选项“Other countries make customers pay for them.”中的“Other countries”与前文“Some countries”形成对应，逻辑连贯，衔接自然。
3. 第3空：下文核心内容是建议携带可重复使用的水瓶，减少塑料瓶的使用，B选项“Don't buy bottled water.”作为该段的主旨句，契合段落主题。
4. 第4空：前文提及要避免塑料包装，后文指出塑料包装几乎无处不在，G选项“Most things you buy come in plastic packaging.”解释了塑料包装的普遍性，有效衔接上下文。
5. 第5空：前文表明并非所有塑料都能被回收，后文举例说明可回收的塑料物品，D选项“But it is possible to start small.”通过转折引出可从回收小物件做起，符合逻辑。
【答案】
1.E 2.F 3.B 4.G 5.D
【知识点】
上下文逻辑衔接；七选五解题技巧；环保类文本阅读
【点评】
本文是一篇环保类说明文，围绕减少塑料使用给出具体可行的建议，题目考查学生对语篇逻辑的把控能力，需结合段落主旨与上下文语境作答，内容贴近生活，兼具实用性与教育意义。
【难度系数】
0.6

Five Tips to Improve Your Memory
Most of us know that our brains become smaller in size as we get older，but did you know that diet and lifestyle have an effect on how well our brains work?
Research shows that eating lots of fruit，vegetables and proteins(蛋白质)improves memory. 1. Eating oily fish or dark chocolate(with over 70% cocoa)and taking Vitamin D3 can also help make your memory stronger.
2. A 2011 study showed that regular exercise actually increases brain size. Another study found that exercise improved memory in some older people；surprisingly it found that one single training period had the same effect on memory as regular，long exercise period!
One study found that eight weeks of short，daily meditation(冥想)improved memory. Other ways to relax can also improve our short-term memory. Try taking 5—10 minutes of your day to meditate or listen to music. 3.
Experts say that age reduces our ability to learn，but sleep can help. 4. A 2019 study found that students learned things better before and after a short sleep!
5. Try to memorize information like phone numbers and addresses rather than putting the information in your phone. You could also learn a language or do brain training like crosswords(纵横字谜).
A. Or even just take a shower!

B. It's important to keep a healthy body.
C. The role of exercise is really important too.
D. Use your phone to help you memorize things.
E. To keep your brain in good condition，you need to use it.
F. Try to avoid sugary foods such as cakes and milk chocolate.
G. For your brain to work well，7—9 hours of sleep is necessary.

Passage 2
1. F 根据“Research shows that eating lots of fruit, vegetables and proteins improves memory. ... Eating oily fish or dark chocolate (with over 70% cocoa) and taking Vitamin D3 can also help make your memory stronger.”可知，空格处与饮食相关，选项 F“尽量避免含糖食物，如蛋糕和牛奶巧克力”符合语境。故选 F。
2. C 根据“A 2011 study showed that regular exercise actually increases brain size.”可知，此处与锻炼相关，选项 C“锻炼的作用也很重要”符合语境。故选 C。
3. A 根据“One study found that eight weeks of short, daily meditation improved memory. Other ways to relax can also improve our short - term memory. Try taking 5 - 10 minutes of your day to meditate or listen to music.”可知，此处介绍放松的方式，选项 A“或者只是洗个澡”符合语境。故选 A。
4. G 根据“Experts say that age reduces our ability to learn, but sleep can help.”可知，此处与睡眠相关，选项 G“为了让大脑正常工作，7 - 9 小时的睡眠是必要的”符合语境。故选 G。
5. E 根据“Try to memorize information like phone numbers and addresses rather than putting the information in your phone. You could also learn a language or do brain training like crosswords.”可知，此处建议做一些脑力训练，选项 E“为了让你的大脑处于良好状态，你需要使用它”符合语境。故选 E。

【解析】
1. 第一空所在段落围绕饮食对记忆力的影响展开，前文提到多吃蔬果、蛋白质有益记忆，后文提及吃油性鱼类、黑巧等的好处，F选项“尽量避免含糖食物，如蛋糕和牛奶巧克力”属于饮食相关的建议，符合语境。
2. 第二空后内容介绍了锻炼对大脑和记忆力的积极作用，C选项“锻炼的作用也很重要”可以引出下文关于锻炼的研究内容，契合段落主题。
3. 第三空所在段落讲放松方式对记忆力的帮助，前文提到冥想、听音乐，A选项“或者只是洗个澡”是另一种放松方式，符合语境。
4. 第四空所在段落围绕睡眠对学习和记忆力的作用展开，G选项“为了让大脑正常工作，7-9小时的睡眠是必要的”直接点明睡眠时长要求，呼应前文“sleep can help”。
5. 第五空后内容建议主动记忆信息、做脑力训练，E选项“为了让你的大脑处于良好状态，你需要使用它”可以引出下文使用大脑的具体方法，符合段落逻辑。
【答案】
1.F；2.C；3.A；4.G；5.E
【知识点】
七选五阅读、语境逻辑推理、健康生活常识
【点评】
本题以“提升记忆力的五个小贴士”为主题，考查学生对语篇语境的理解和逻辑推理能力，内容结合健康生活常识，贴近实际，既能考查阅读能力，也能传递健康知识。
【难度系数】
0.6