词汇运用（计10分）

小题1:Boys and girls,can you look after____(you)well in the summer holiday?

小题2:It’s cold inside the room. Would you please stop the man from ____ (open) the windows ?

小题3:A mobile phone of that kind will cost at ______ (little) ￥2000.

小题4:She was so _____ (care) that she wore different socks on her feet .

小题5:My aunt ______ (teach) me to play the piano when I was a child .

小题6:It _______(惊讶) everyone when the lost boy stood in front of the school gate.

小题7:He believed that I could walk again in a few ____ (月) time.

小题8:The sunlight came in ______ (穿过) the windows in the roof and lit up the whole room.

小题9:I’m sure we will succeed in ________ (保护)our earth.

小题10:The baby panda _______ (重) 20 grams now .

一对夫妇因不孕症向医生求助，医生利用试管婴儿技术帮助他们拥有了自己的孩子。在培育试管婴儿的过程中，下列技术中不是必须使用的是（）

A.体外受精

B.胚胎的体外培养

C.植入前胚胎的遗传学检测

D.胚胎移植