两个英语习题求解!3.The space age__in October 1957 when the first art

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/21 17:12:35

两个英语习题求解!
3.The space age__in October 1957 when the first artificial satellite was launched by the Soviet Union.
A.initiated B.originated C.embarked D.commenced
这个题选什么?这四个选项有什么区别,如何区分?
4.Tom might have come to school in time for the lecture__/
A.if he got up earlier B.unless he had got up earlier
C.but he got up very late D.but he had got up very late
这个题应该选什么?为什么不选D?D错在哪里了?

D.commenced
.initiate是及物动词,用法是：…….initiates sth
originate是起源于的意思,不合适
embark和on或upon搭配才有开始的意思,而且embark on/upon后面需要有宾语.
commence有begin/start的意思,可以做及物动词,也可不及物动词
第二题是虚拟
条件句（既包含条件的句子）中如果见到might/would/could 等一般都是虚拟语气.既然主句是虚拟,条件状语从句中也要虚拟.但这里but引导的不是条件,而是事实,所以就不能虚拟了.所以选C.
汤姆本来可以及时赶上讲座的,但他起床晚了.
这句话等于；.Tom might have come to school in time for the lecture if he hadn't got up late.
（如果他没起晚,汤姆本可以赶上讲座）
意思一样,但后者就需要虚拟,因为后者的用了条件从句,而其这个条件是和事实相反的.

两个英语习题求解!3.The space age__in October 1957 when the first art The Space Age _____in October 1957 when the first artificial The Space Age ____in October 1957 when the first artificial 英语翻译The space age officially began on October 4,1957,when th the first of October是什么意思英语年月日的读法问题一：比如说10月一号是读作october the first 还是october first我上学学求解一道语法题She became the first woman astronaut to fly to space. 句法结构the first thing I saw when i entered the art gallery was Who is the first man in space? which country lauchde the first space satellite? Which country built the first space station? It is first October.读时first前面加the吗?