【连句成篇】
Whether we can land on Mars or not depends on
the
development
of
science
and technology.There is almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100 degrees below zero at night,which prevents us from living there.Now that Mars is quite different from our earth,if we are to go to Mars one day,we should have to take along our own oxygen,food,clothing and shelter.
主语从句
1.The limits of a person’s intelligence,generally speaking,are fixed at birth,but________he reaches these limits will depend on his environment.
A.where B.whether
C.that D.why
解析: 考查主语从句的引导词。句意为:一个人的智力极限,通常来说,出生时就已经定型了,但他是否能够达到这些极限则取决于他的生活环境。根据“depend on”可知,主语从句“________he reaches these limits”中含有不确定因素,故用whether,选B。
答案: B
2.(2017·吉林一模)_ _______the flight to New York will be delayed is________I’m especially worried about.
A.When;what B.Whether;that
C.When;that D.Whether;what
解析: 考查名词性从句。句意为:去纽约的航班是否会被推迟是我尤为担心的事情。第一空引导的是主语从句,句子不缺成分且意思完整,结合句意可知应用whether;第二空引导的是表语从句,从句中about缺少宾语,而that引导名词性从句时不作成分,应用what。
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