PTE Speaking & Writing Practice Test 7

"The university library extended its opening hours during the final examination period."

"Today let's explore why salt is used to melt ice on roads and pathways during winter. Pure water freezes at exactly zero degrees Celsius, but dissolving salt into water lowers the temperature at which the mixture freezes, a phenomenon scientists call freezing point depression. When salt is scattered on an icy surface, it dissolves into any thin film of liquid water present on the ice, forming a salty solution that requires a much lower temperature to freeze than pure water does. This means ice already present can begin melting even when the surrounding air temperature remains well below water's normal freezing point, since the resulting salty water simply cannot freeze again until the temperature drops much further. However, this effect has clear limits: at extremely low temperatures, typically well below negative ten degrees Celsius depending on the salt used, common road salt becomes far less effective, since even a saturated salt solution will eventually freeze if conditions are cold enough. This is why regions experiencing extremely severe winters often supplement or replace standard salt with alternative de-icing chemicals that remain effective at much lower temperatures, despite typically being considerably more expensive to use at scale."

"A geologist." — one word is enough; a full sentence is not required.

Speaker A: "I believe primary schools should abolish homework entirely, since young children need unstructured free time after school for play, family time and rest, which research shows are equally important for healthy development."

Speaker B: "I understand that concern, but a small, well-designed amount of homework, like brief reading practice, can help build consistent study habits early and reinforce what was taught during the school day."

Speaker A: "That's reasonable for reading specifically, though many current homework assignments go well beyond simple reading practice and can create real stress for young children and their families."

Speaker B: "Agreed, so perhaps the real issue is homework quantity and design rather than homework itself; a strict limit on total time, rather than complete abolition, might address both concerns."

Moderator: "So one position favours abolishing primary school homework entirely, while another favours keeping a small, carefully limited amount focused specifically on habit-building."

শক্তিশালী: উভয় দৃষ্টিভঙ্গি বিস্তারিত, প্রমাণভিত্তিক যুক্তি ও বাস্তবসম্মত মতামত।

মধ্যম: মূল বিষয়বস্তু ঠিক আছে কিন্তু সহজ বাক্য, সীমিত শব্দভান্ডার।

দুর্বল: ব্যাকরণ ভুল অনেক, খুব কম শব্দ, স্পষ্ট গঠন নেই।