话题 5 介绍科学实验或探讨生命科学相关知识-2025-2026学年九年级全一册英语写作好词好句（冀教版）

初三上册冀教版 【寒假专版】D版写作好词好句 寒假专版 【D版好词好句】介绍科学实验或探讨生命 科学相关知识 写作提分攻略·冀教版初三上册（暖色系版） 好词好句积累 一、好词积累 实验操作相关 动词&短语：conduct an experiment做实验：nix.with.把…和…混合：heat up加热： observe carefully仔细观察：record results记录结果：follow instructions按照说明：measure the temperature测量温度；set up the equipment安装设备 名词&短语：experimental equipment实验器材；test tube试管：beaker烧杯：Bunsen burner 本生灯；safety goggles护目镜；hypothesis假设；conclusion结论；data数据；procedure 步骤 生命科学相关 名词&短语：cell细胞；DNA脱氧核糖核酸；gene基因；photosynthesis光合作用；ecosystem 生态系统；organism生物体；reproduction繁殖；evolutio进化；nutrition营养；biology 生物学 形容词：living活的：organic有机的：biological生物的；tiny微小的：complex复杂的：ital 至关重要的 描述现象与结论 动词&短语：change color变色；produce gas产生气体；grow faster生长更快；depend on 依靠；play a role in在…中起作用；lead to导致；prove that..证明… 形容词&副词：clearly清晰地；obviously明显地；successfully成功地；stable稳定的：im portant重要的：amazing令人惊奇的 二、经典好句 1.介绍科学实验 1 初三上册冀教版 【寒假专版】D版写作好词好句 1.1 Last week,we conducted an interesting chemistry experiment in the lab.We mixed vinegar with baking soda and observed that a lot of gas was produced. 1.2 To do the photosynthesis experiment,we need to set up the equipment carefully and follow the teacher's instructions step by step. 1.3 After heating the solution for five minutes,the liquid in the test tube changed color from blue to green 2.探讨生命科学知识 2.1 Photosynthesis is a vital process for plants.They use sunlight,water and carbon dioxide to make food and oxygen. 2.2 Cells are the basic units of all living organisms.Some organisms,like bacteria,are made up of only one cell. 2.3 The ecosystem is like a big family where all living things depend on each other for survival. 3.实验与科学知识结合 3.1 In our biology class,we did an experiment to prove that plants need sunlight to grow.The result showed that the plant in the dark grew much slower than the one in the light. 3.2 By observing the tiny cells under the microscope,we learned how complex the structure of a leaf is,which helps us understand how photosynthesis works. 3.3 The experiment about DNA extraction was amazing.It made me realize that even though DNA is invisible to the naked eye,it carries all the genetic information of an organism. Exploring Photosynthesis:A Plant Growth Experiment In our biology class last month,we did an interesting experiment to study photosynthesis using mung beans.First,we prepared two groups of beans.We put them in petri dishes with the same amount of water and soil.Then we placed one group near the window where it could get sunlight,and the other group in a dark cupboard.Every morning,we measured their height with a ruler andrecorded the data in our notebooks.After two weeks,we observed that the beans in sunlight grew 15 centimeters taller, while the ones in the dark only grew 3 centimeters and had yellow leaves. Using these results,we concluded that sunlight is essential for plant growth because it powers photo synthesis-the process by which plants make food using sunlight,water,and carbon dioxide.During the experiment,we learned the importance of controlled conditions:we had to ensure both groups re- ceived the same amount of water and were kept at the same temperature.My lab partner and I took turns watering the plants and recording data,which taught us that teamwork helps make experiments more 2 初三上册冀教版 【寒假专版】 D版写作好词好句 accurate. This project helped me understand why all living things need energy to survive.Just like plants need sunlight,we humans need nutritious food and exercise to stay healthy.Now when I see trees growing tall and green,I know it's because of photosynthesis working silently every day! Exploring_(Science Topic):A_(Experiment Type)Experiment In our(Subject)class(Time,e.g.last month,last week),we did an interesting experiment to study(Science Concept)using(Experimental Material).First,we prepared(Number)groups of (Experimental Material).We put them in_(Equipment)with the same amount of(Variable 1)and _(Variable 2).Then we placed one group(Condition A),and the other group(Condition B).Every -(Frequency,e.g.morning,day),we(Action 1,e.g.measured their height with aruler,observed their color)and(Action 2,e.g.recorded the data in our notebooks,took photos).After(Time Period),we observed that(Result of Group A),while(Result of Group B). Using these results,we concluded that-(Conclusion)because-(Scientific Principle).During the ex- periment,we learned the importance of(Experimental Skill,e.g.controlled conditions,accurate mea- surement):we had to ensure both groups_(Controlled Variables).My lab partner and I_(Teamwork Action),which taught us that teamwork helps make experiments more(Adjective,e.g.accurate,effi- cient). This project helped me understand why_(Broader Scientific Significance).Just like(Example 1), _(Example 2).Now when I see(Real-Life Observation),I know it's because of(Scientific Princi- ple)working silently every day! 3