Describe a poisonous plant you know about.
You should say:
- when you had to take it
- why it took you so long
- what it is
and explain how you know about it.
雅思口语提示卡参考范文：
The range of plants in the plant kingdom is astounding and would surprise anyone with little interest in this subject. Some plants are carnivorous, some cure diseases while others can actually be deadly if consumed. From their ability to grow in water or on other plants to their ability to adapt to the new environment often baffle the botanists. Thank you for the topic that asks me to talk about a poisonous plant.
I have actually seen or heard about many plants that can cause allergy and itching if someone touches them and some cause diarrhoea and vomiting if consumed by any means. To me, all of these plants are poisonous if not handled with care. However, I was quite dumbfounded when I learned that tomato plant which is found in many regions of Asia and the world could be poisonous.
I learned about the poisonous tomato plant accidentally when I was reading a journal called "Journal of Plant Physiology". Biologically tomato is a fruit but for culinary purposes, it is a vegetable. We also eat the tomato as a salad and it is almost an indispensable ingredient to prepare a salad. We use tomato in different dishes and almost every household around the globe knows this fruit.
However, tomato leaves and stems contain solanine that is toxic if ingested, causing digestive upset and nervous excitement. If someone rubs the tomato leaf in his/her fingers, it gives a bitter odour which is because of the poisonous substance in it. Even the raw or green tomato has a small bit of toxicity, which is not deadly at all. Ripe tomatoes do not contain any detectable tomatine. Tomato plants can be toxic to dogs if they eat large amounts of the fruit, or chew plant material.
The ripe tomato, which is usually red, has a lot of advantages, it contains lycopene which is an antioxidant, which helps prevent cancer. Tomato is also a rich source of Potassium and Vitamins. It should be eaten but we should avoid consuming leaves and stems. So tomato is a plant which has poisonous foliage but a very beneficial fruit.
