请输入或粘贴题目内容
搜题
拍照、语音搜题，请扫码下载APP
题目内容
（请给出正确答案）
Not until the early years of the 19th century ______ what heat is．
A．man did know B．man know
C．didn't man know D．did man know
答案
更多“Not until the early years of the 19th century ______ what heat is． A．man did know B．man know C．di”相关的问题
第1题
Although ______ named until 1812, the metal was used as early as 5100 B.C..
A．it was
B．was not
C．was
D．it was not
第2题
B.needn't have got up
C.need not get up
D.must not get up
第3题
In America, you can achieve if you are prepared. You can soar(高飞)as far as your knowledge, drive and social skills will take you. The hitch is that although most of our children are born with incredible potential, far too many of them never see their promises fulfilled because their brains dont get enough stimulation(刺激)early in life. Jon Fine, CEO and president of United Way of King County, showed slides(幻灯片)of two brains during a speech Friday. One showed the brain of a child who received lots of stimulation, and the other the brain of a neglected child. There was a marked difference in the development of the temporal lobe(颞叶), which meant the child who hadnt had rich experiences in his or her early childhood would have trouble processing information. High-quality early education is the surest way to reduce the high school dropout rate because children start learning the moment they enter the world. It could keep more people out of prison and help grow the talent well need to rebuild our economy, mend our environment and write brilliant music. Think about something as simple as vocabulary. How do children acquire the kind of deep and broad repository(储存)of words and language skills that are the foundation of success in school and in life？ Obviously, since you need it to succeed in school, waiting until you are in school to learn isnt the best option. Kids learn at home from their parents, and parents arent equally prepared to teach. Kids who arrive at school behind rarely catch up.
Which is the best title of this passage？
A．The Importance of Early Education.
B．The Equal Chance in America.
C．Family Education in America.
D．The Cause of the High-school Dropout Rate.
第4题
根据下面内容，回答题：
The crowd stirred and whispered in awe as， on the stage， the horse slowly tapped out the beat．Everyone became tense and quiet as the number of taps neared the correct answer to the horse trainer"s question．After the final tap， the horse paused， seemed to look around and stopped．The crowd went wild !
The horse"s name was Clever Hans， the Educated Horse， and was featured in a vaudeville（杂耍）act in the early 1900s， in Europe．When asked a complicated mathematical question by his owner，Clever Hans would tap out the correct answer with his hooves．For example， if the answer was sixty-eight， Hans would tap out six with his left hoof and eight with his right hoof．Even more remarkable，the owner would leave the room after asking the question， so there could be no secret signal between owner and horse．A mere animal seemed to be accomplishing a highly technical skill of man"s!
It wasn"t until years later that the secret of the trick was revealed．The owner had trained Clever Hans to respond to slight signals．The horse became so sensitive that he learned when to stop from the crowd"s reaction．Members of the audience would start involuntarily， or give some unconscious signal，when Hans reached the right answer．Modern scientists now warn against the Clever Hans syndrome（综合征 ）， whereby researchers unconsciously give clues to their animal subjects about the actions they like to see performed!
This passage is mainly about________． 查看材料
A.animal intelligence
B.mathematical skills
C.Clever Hans
D.unconscious behavior
第7题
Did you()early this morning？
A.get up
B.got up
C.getting up
第8题
A. on early forties
B.of his early forties
C. in his early forties
D. in early forties
第10题
