2019届高考英语Units 19～20　Modern agriculture　Humour知识点复习

units 19～20　modern agriculture　humour
 
ⅰ.单项填空
1．radioactive matter is dangerous to work with because it has a bad effect________ the blood.
a．to         b．fo         c．in         d．on
解析：have effect on是习语，意为“对……有影响”。
答案：d
2．you are not in good health, i think.you could improve your ________ by running every day.
a．position     b．situation     c．condition     d．energy
解析：condition可指“身体健康状况”。
答案：c
3．the company managed to keep up their sales of clothes this summer by ________ a new fashion.
a．bringing on  b．bringing about  c．bringing in  d．bringing out
解析：bring on“造成”；bring about“引起”；bring in“引进，引入”；bring 阅读全文