social studies 造句、by oneself造句、make a different造

experiment [iks'perimənt]
n. 实验,试验,尝试
v. 实验,尝试
例句与用法:
The teacher gave each of us a piece of filter paper before doing the experiment.
做试验前,老师给我们每个人发了一张滤纸.
We are doing a chemical experiment.
我们正在做化学实验.
According to expert opinions, they gave up the experiment immediately.
根据专家们的意见,他们马上放弃了这项试验.
The students will have an experiment in the laboratory tomorrow.
学生们明天要在实验室里做实验.
We will do a Chemistry experiment this Friday.
这个周五我们要做化学试验.
Small businesses are anxious to experiment with computers.
小型企业都急于试用计算机.
Some scientists experiment on animals.
有些科学家用动物做试验.
词形变化:
名词:experimenter 动词过去式:experimented
动词过去式:experimented 过去分词:experimented
过去分词:experimented 现在分词:experimenting

Last Friday,we ORGANIZED / HAD social studies.