People           about what our future will look like for thousands of years.

have been wondering

wonder

wondered

will wonder

考查動(dòng)詞時(shí)態(tài)。句意：數(shù)千年以來人們一直想知道我們未來是什么樣子。根據(jù)時(shí)間狀語 for thousands of years可知，描述從過去開始一直持續(xù)到現(xiàn)在的動(dòng)作，用現(xiàn)在完成進(jìn)行時(shí)。故選A項(xiàng)。

         Jixi today is more beautiful now. Mr.Jakson said he would visit it         third time.

The; /

The; the

/; a

The; a

考查冠詞。句意：今天的雞西市更漂亮了。Jakson先生說他將又一次來到這里。第一空“雞西市”應(yīng)用定冠詞；第二空“不定冠詞a/an+序數(shù)詞+名詞” 強(qiáng)調(diào)在已知數(shù)量上在累加一個(gè)，且 third為輔音音素開頭的單詞，應(yīng)用a。故選D項(xiàng)。

You don't have to know the name of the author to find a book. You           find the book by the title.

must

need

can

would

考查情態(tài)動(dòng)詞辨析。句意：你不需要知道作者的名字就能找到一本書。你可以按書名找到這本書。A.must必須，一定；B.need 需要；C. can可能；可能；D.would愿意。根據(jù)句意可知，此處表示一種客觀的可能性，應(yīng)使用情態(tài)動(dòng)詞can。故選C項(xiàng)。

It was not until 1920 ___ regular radio broadcasts began.

when

which

that

since

此題考查強(qiáng)調(diào)句。句意為：直到1920年，常規(guī)的電臺(tái)才開始。這句話把it is/was和that去掉后，仍是完整的一句話，因此我們可以知道這是一個(gè)強(qiáng)調(diào)句，而且是對(duì)not...until“直到...才”的強(qiáng)調(diào)。結(jié)構(gòu)是：it is/was+not until+其他成分。故選:C.

Lucy tried to help, but she was          as if she was  interfering, not helping.

dynamic

compulsory

scared

clumsy

考察形容詞。句意：露西想要幫忙，但她笨手笨腳，好像在干涉別人，而不是在幫忙。A.dynamic動(dòng)態(tài)的；B. compulsory 義務(wù)的；C.scared 害怕的；D.clumsy笨拙的。結(jié)合后文好像是在干涉別人，而不是在幫忙。可知露西笨手笨腳的。故選D項(xiàng)。