The plants grown by Wageningen University researchers in Mars-like soil back in March have been analyzed and the results are excellent: at least four of the crops do not contain harmful heavy metal levels and are perfectly safe to eat, the University researchers report.

If you’ve seen The Martian, you can remember how much Matt Damon got done living off of his poo-powered crop of potatoes. It just goes to show how important it is for a long-term colony to be able to grow their own food locally. We’ve taken one step closer to that goal in March, when Netherlands’ Wageningen University reported that they’ve managed to grow ten different crops in Mars-like soil.

However, growing food doesn’t do us much good if eating it kills us, and researchers were worried that these crops contained dangerous heavy metals like lead or cadmium(鎘) from the martian soil. But future colonists are delighted, as lab analysis of the crops determined that at least four of them are safe to eat.

Led by ecologist Wieger Wamelink, the team tested radishes, tomatoes, rye, and peas. They looked at cadmium, lead, aluminium(鋁), nickel(鎳), copper, chrome(鉻), iron, arsenic(砷), manganese(錳), and zinc(鋅) contents in the plants, and didn’t find any in dangerous levels. In fact, some of these vegetables have lower levels of heavy metals than those grown in regular potting soil. The plants were also tested for vitamins, alkaloids(生物堿), and flavonoids(類黃酮), with good results. While there are six more crops to test, Wamelink himself said that the results up to now are “very promising.”

“Growing food locally is especially important to our mission of permanent settlement, as we have to ensure sustainable food production on Mars. The results of Dr. Wamelink and his team at Wageningen University & Research are significant progress towards that goal,” said Mars One co-founder and CEO Bas Lansdorp in a press release.

A crowdfunding campaign is underway (and will be until the end of August) to fund the test of the remaining crops, potatoes included. If all the crops test out safe, with concentrations of heavy metal the FDA and the Dutch Food Agency consider as safe, Wamelink’s team will host a “Martian dinner” at the Wageningen greenhouse.

But I’ve seen the movie. Stay clear of the potatoes.

1.Which of the following is true according to the passage?

A. Four crops grown in martian soil have been tested safe to eat, with no heavy metals in.

B. The ability to grow food locally can ensure the permanent stay on Mars.

C. The team temporarily lack money to test the remaining six crops.

D. A “Martian dinner” will be hosted after all the remaining crops have been tested.

2.What is Bas Lansdorp’s attitude towards the research results?

A. Neutral.B. Indifferent.C. Unfavorable.D. Praiseful.

3.The author writes the passage in order to _________.

A. prove that it is practical to grow crops on Mars in the future

B. show crops grown in martian soil are safe for people to eat

C. point out the importance of growing food locally for long-term settlement

D. report the recent research findings of the possibility of growing food on Mars

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Extended Hours: 10:00 am to 7:30pm

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Friday and Saturdays, April 24—May 16, 2015 May 17—September 7, 2015

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First Aid: The Museum has a First Aid office and a nurse on duty. Please contact the nearest security officer or the Welcome Center for assistance.

Visit the Welcome Center: At our Welcome Center in the South Lobby, staff and volunteers can answer any questions you have during your visit.

Open: 10:00 am to 5:30 Phone: 202-666-2212

E-mail: NASM-visitorservice@si.edu

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The 18-year-old girl from Linyi, Shandong province scored 568 points on her college entrance exam this year and was admitted to Nanjing University of Posts and Telecommunications.

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【寫作內(nèi)容】

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內(nèi)容完整，語言規(guī)范，語篇連貫，詞數(shù)適當(dāng)。

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閱讀下面短文，從短文后各題所給的四個(gè)選項(xiàng)（A、B、C和D）中，選出可以填入空白處的最佳選項(xiàng)。

My brother, Mark, died in a traffic accident four years ago. He was my big brother and looked after me. I am today for all of the special times we had as running partners, and times driving to different races, where we had so many about life in general. I these talks terribly at this time of the year.

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6.A. So B. However C. Then D. If

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閱讀下列短文，從每小題所給的四個(gè)選項(xiàng)（A、B、C和D）中，選出最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。

James Cleveland Owens was the son of a farmer and grandson of black slaves. His family moved to Cleveland when he was 9. There a school teacher asked his name.

“J.C.,” he replied. She thought he had said “Jesse”, so he had a new name.

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“It was all right with me,” he said years later. “I didn’t go to Berlin to shake hands with him, anyway.”

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In time, however, his gold medals changed his life. “They have kept me alive over the years,” he once said. “Time has stood still for me. That golden moment dies hard.”

1.Ovens got his other name “Jesse” when ________.

A. he went to Ohio State University

B. his teacher made fun of him

C. his teacher took “J.C.” for “Jesse”

D. he won gold medals in the Big Ten meet

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A. hurt himself in the back

B. succeeded in setting many records

C. tried every sports event but failed

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3.When Ovens said “They have kept me alive over the years” in the last paragraph, he means that the medals ________.

A. have been changed for money to help him live on

B. have made him famous in the US

C. have encouraged him to overcome difficulties in life

D. have kept him busy with all kinds of jobs

4.What would be the best title for the text?

A. Jesse Ovens ― a great American sportsman

B. Golden moment ― a lifetime memory

C. Making a living as a sportsman

D. Why was Jesse Ovens successful?

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