问题 选择题

含有多种消化酶的消化液是(  )

A.胃液、肠液

B.胰液、肠液

C.唾液、肠液

D.唾液、胃液

答案

唾液腺分泌的唾液中含有唾液淀粉酶;肠腺可以分泌肠液,肠液中含有消化蛋白质、糖类、脂肪的消化酶;肝脏分泌的胆汁中不含消化酶,但胆汁对脂肪有乳化作用,能把脂肪变成微小颗粒,增加了脂肪与消化酶的接触面积,从而有利于脂肪的消化;胰腺分泌的胰液中含有消化糖类、脂肪和蛋白质的酶.因此含有多种消化酶的消化液是胰液、肠液. 

故选B.

完形填空

It’s November 6th today. Ben and Lisa want to buy a birthday   46 . It’s their   47 birthday.

“What does she   48 ?” Ben asks Lisa. “I don’t know.” Lisa says, “We bought(买)her some hamburgers last time.”

“Yes,” Ben says, “and we ate (吃) some of them! We can’t do that   49 .”

“Let’s buy her a book. She likes   50 .” Lisa says.

“What kind of book would she like?” Ben asks.

“I don’t know.” Lisa says, “Let’s go   51  ask her.”

The children go to the living room. Mrs. Wilson is watching TV.

“We want to buy a book   52  you, Mom.” Lisa says.“What book do you want?”

  53  money do you have?” Their mother asks them.

“We have twenty-five yuan.” Ben says.

“Good. That’s enough(足够) for the book I want. It is Quick and Easy Cooking.

The children buy their mother the book for her birthday. They   54  her present this time, but they often eat the nice food because their mother learns a lot   55  the book and cooks for them. They are very happy.

小题1:A.flower      B. present          C.cards

小题2:A. mother’s   B. Lisa’s          C.brother

小题3:A.need         B.can               C.must

小题4:A.before      B.ago               C.again

小题5:A.running      B.shopping          C. reading

小题6:A. but         B.and               C.so

小题7:A. for         B.on                C.about

小题8:A.How much     B.How often         C.How many

小题9:A.not eat     B.eat               C.don’t eat  

小题10:A.from       B.about              C.with

问答题