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A Lesson in a Lab教案

发布时间:2019-08-13

A Lesson in a Lab教案

a lesson in a lab教案
典句精讲
1.the science facilities ar e very good with laboratories that have all the latest equipment.
这些科研设备非常好,实验室配有最新的设备。
【巧解句构】 with在此句中意思为“带有……”,其引导的短语对句子作附加说明,that have all the latest equipment为定语从句,修饰laboratories。
2....and these are always very interesting,as the lectures are people who have made real discoveries in their areas of science.
这些讲座总是很有趣的,因为作讲座的人是在各自的科研领域里真正有所发现的人。
【巧解句构】 as conj.“因为,由于”,在本句中引导原因状语从句。as作连词可以引导多种状语从句,主要有时间、原因、方式、比较、让步等从句。
3.the nobel prize is the highest scient ific prize there is,so we should be very proud of that.
诺贝尔奖是目前科学方面的最高奖,因此我们为此感到骄傲。
【巧解句构】 there is为定语从句,修饰prize。
4.it is important to know how they r eact with different substances,for example,water and oxygen.
了解它们如何同像水、氧气这样的物质发生反应的是非常重要的。
【巧解句构】 1)it是形式主语,真正的主语是动词不定式to后面的部分。
2)how引导的句子作know的宾语。 
【要点剖析】react with同……发生反应。
for example是不完全列举,“例如”。完全列举时用that is。
拓展延伸 注意此处空半格以it作形式主语或形式宾语的动 词有feel,consider,find, believe,make,take,imagine,think,suppose,count,regard等。在这种结构中,被替代的成分要置于句尾。
5.leave the tube for one week. 把试管放置一个星期。
【要点剖析】1)leave意为“维持,使保持一定 状态”,允许在某一种状态。 
2)leave作“离开”讲时是及物动词;作“去,出发”讲时,是不及物动词;
还可作“遗忘,忘掉”讲,与forget近义,但 搭配不一样,leave sth.+地点状语,而forget只加sth.,不加地点。如:
i left my dictionary in my dormitory.
i forgot my dictionary.
拓展延伸 注意此处空半格leave作“维持,是保持某一状态”讲时,其结构经常是:后跟副词、分词、介词、形容词等作宾语补足语的复合结构。如:
i am sorry i h ave left you  waiting for me for so long time.
his answer lef t me unhappy.
6.our chemistry teacher,mr longford,takes us to public science lectures about four times a term,and these are always very interesting,as the lecturers are people who have made real discoveries in the area of science.
我们的化学老师朗福德先生,大约每学期带我们去听四次大众科学讲座,这些讲座是非常有趣的,因为作讲座的人在他们所从事的科学领域都有实际的发明。
【巧解句构】 1)这句话是由and连接的两个并列句子,连个句子的主语分别是:our chemistry teacher和 these。后 面的句子又是一个由as连接的原因状语从句,表示明显的原因,意为“由于、鉴于”。轻轻告诉你 
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