2、Millions of people die of hunger in Southern Africa every year, but when Zambia was offered thousands of tons of free maize by the US, the government politely said no.

“We don’t know whether the food is safe,” said Zambia’s Commerce, Trade and Industry Minister Dipak Patel.

His worries are shared by countries around the world that are in two minds about America’s genetically modified (GM) crops. Just last week, EU member nations were discussing whether or not to import GM sweet corn from the US.

Ever since people started farming, they have tried to crossbreed (杂交) plants to make them stronger or better tasting. At one time, only related plants could be crossed with each other.

But when GM techniques were developed in the 1970s, scientists were able to put a single gene from a living creature into an unrelated creature.

This means they can make crops more productive and resistant to disease by adding genes from other species. They can also create food with special characteristics, such as “golden rice”, which is enriched with vitamin A. But many people believe GM foods are a health risk.

“If left to me, I would certainly not eat GM foods,” said Scottish scientist Arpad Pusztai. “We are putting new things into food which haven’t been eaten before. The effects on the immune system are not easy to predict.”

At the moment, the official argument is that GM foods “are not likely to present risks for human health”. But there are still many questions to be answered as the foods are produced in different ways.

Some experts believe the genetic material added to plants can transfer to humans and give damage to our bodies. Further harm could be caused by the genes from GM plants crossbreeding with naturally produced crops.

67. We learn from the passage __________.

       A. people have discovered that GM foods will do harm to human health

       B. millions of Zambia people die of eating too much GM foods

       C. people are still not sure if GM foods will do harm to human health

       D. genetic material added to plants will damage our bodies sooner or later

68. What does “in two minds” in the third paragraph mean?

       A. Unsure.                B. Worried.               C. Likely.                  D. Careless.

69. Which of the following statements is NOT true about GM foods?

       A. It is produced from plants added genes from other species.

       B. GM foods can have special characteristics.

       C. GM foods will affect people’s immune system.

       D. GM foods have been produced since 1970s.

70. What’s the author’s attitude?

       A. Supportive.           B. Neutral.                C. Doubtful.              D. Critical.

1、After 21 years of marriage, my wife wanted me to take another woman out to dinner.   36   woman was my mother, who has been a widow for 19 years, but my work had made   37   impossible to visit her very often. That night I called to   38  her to go out for dinner.“What’s wrong? Are you   39  ?”she asked. “I thought that it would be   40   to spend some time with you. Just the two of us,”I answered. She thought about it   41   moment, and agreed.

That Friday after work,   42   I drove to pick her up, I was a bit nervous. When I arrived at her house, I   43   that, she, too, seemed to be   44   about our date. She had curled her hair and was wearing the dress that she had worn to   45   her last wedding anniversary.

We went to a restaurant that,   46   not elegant, was very nice and cozy. When I read the menu, Mom sat there   47   at me. A nostalgic(怀旧的)smile was   48   her lips. During the dinner, we had a(an)   49   conversation―nothing special but catching up on(了解)recent events of each other’s life.

A few days   50  , my mother died of a heart attack. It happened so suddenly that I didn’t have a chance to do   51   for her. Some time later, I received an envelope with a note   52  “You will never know what that night meant to me. I’m looking forward to the   53   dinner. I love you, Son.”

At that moment, I understood the importance of saying in time“I LOVE YOU”. Nothing in life is more important than your   54  . Give them the time they deserve, because these things cannot be   55   till“some other time”.

36、An average of 130,000 Chinese ____ abroad for studies every year over the past few years, improving exchanges in the educational fields.

     A. was going                                       B. have been going  

     C. has been going                                 D. are going

35、Students in this school don’t have classes on Wednesday afternoon, which is ____ , for teachers have a meeting.

     A. practice         B. action            C. experience      D. sense

34、Were all the passengers on the bus injured in the accident?

--No, ____ only the four who got hurt.

     A. there was       B. there were       C. that was                 D. it was

33、How long do you suppose it will be ____ he arrives at the small village?

--Five hours or so.

     A. when                   B. before            C. since              D. after

32、 Having been praised by the teacher, the little girl ran back home,____.

    A. happily and satisfied                  B. eager and excitedly                     

    C. happy and satisfied                   D. anxiously and excitedly

31、Mount Wuyi is such an attractive place of interest ____ everyone likes to visit.

     A. that          B. as                    C. which           D. what

30、―____ he come to see you as he promised?

―Of course. And I’d rather he ____ me the truth.

   A. Can; cover       B. Will; inform     C. Shall; told        D. Should; will tell