问题 选择题

“庄稼一枝花,离不开肥当家”.化学肥料与传统农家肥配合使用,对促进农作物增产、解决粮食短缺问题起了重要作用.下列化肥属于复合肥料的是(  )

A.硝酸铵NH4NO3

B.硫酸钾K2SO4

C.尿素CO(NH22

D.磷酸二氢铵NH4H2PO4

答案

A、NH4NO3含有氮元素,属于氮肥;

B、硫酸钾K2SO4中含有钾元素,属于钾肥;

C、尿素CO(NH22中含有氮元素,属于氮肥;

D、磷酸二氢铵NH4H2PO4中含有氮元素和磷元素,属于复合肥.

故选D.

阅读理解

People in the United States honour their parents with two special days: Mother’s Day, on the second Sunday in May, and Father’s Day, on the third Sunday in June.These days are set aside to show love and respect for parents. They raise their children and educate them to be responsible citizens. They give love and care.

These two days make us think about the changing roles of mothers and fathers. More mothers are now working outside home. More fathers must help with the children care.

These two special days are celebrated in many different ways. On Mother’s Day, people wear carnations. A red one symbolizes a living mother, while a black one shows the mother is dead. Many people attend religious services to honour parents. It is also a day when people whose parents are dead visit cemetery ( 墓地). On these days, families get together at home, as well as in restaurants. They often have outdoor barbecues for Father’s Day. These are days of fun and good feelings and memories.

Another tradition is to give cards and gifts. Children make them in school. Many people make their own presents. These are valued more than the ones bought in stores. It is not the value of the gift that is important, but it is the thought that counts. Greeting card stores, florists, candy makers, bakeries, telephone companies and other stores do a lot of business during these holidays.

小题1:Which of the following is NOT a reason for parents show love and respect for parents?

A.Parents bring up children

B.Parents give love and care to children

C.Parents educate children to be good persons

D.Parents pass away before children grow up小题2:Which do you think is true about “carnation” mentioned in paragraph 3?

A.It has only two kinds of colours

B.It refers to the special clothes people wear on Mother’s Day or Father’Day

C.It’s a kind of flower showing love and best wishes.

D.People can wear carnations only on the second Sunday in May小题3: What can we learn from the passage?

A.Mother’s Day and Father’s Day are both in May

B.Fewer women worked outside the home in the past

C.Not all the children respect their parents

D.Fathers are not as important as mothers小题4: On Mother’s Day and Father’s Day, ____________.

A.people usually have family parties

B.everyone goes to visit the cemetery

C.children always go to parents’ home

D.hand-made cards are not valuable

问答题 简答题