摘要:Some crops grow very large in Alaska. T F

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Farmers may not be able to prevent natural disasters, but they can at least try their best to reduce losses.
For example, they can plant crops that are more likely to survive extreme weather. In north-central Vietnam, people with small farms do not plant rice between September and December. Seasonal rains might destroy the rice. So instead, they plant lotus seeds on raised beds. The United Nations Food and Agriculture Organization says the lotus seeds bring a good price in local markets.  
Farmers in the Philippines are showing new interest in crops like winged beans, string beans, arrowroot and cassava. The Asian Disaster Preparedness Center says traditional crops like these can survive the fierce storms that often strike the islands.
The United Nations says some African farmers grow bambara groundnuts during long dry periods. The seeds of this drought-resistant plant can be boiled for eating or for making flour.
In some parts of the world, farmers grow vetiver grass. Researchers in Thailand wrote about vetiver in 2007 in the journal Science Asia. They noted that the grass can absorb and control the spread of harmful waste waters, like those from pig farms.
Agricultural expert and author William Rivera says vetiver resists difficult conditions. It reduces damage from heavy rains. And vetiver planted on earthen dams may strengthen them against breaks and flooding.
William Rivera also speaks approvingly of alfalfa. Its deep roots can find and take up groundwater. Those roots also help hold the soil against winds. And alfalfa can be a valuable food source for animals.
The deep and extensive roots of sunflowers make them another good candidate for resisting extreme conditions. The tall plants have brightly colored heads that provide seeds and oil.
North Dakota grows more hectares of sunflowers than any other American state. But North Dakota is better known as a top wheat producing state.
Hans Kandel works at the North Dakota State University Extension Service in Fargo. He says farmers in some parts of North Dakota plant wheat that is ready to harvest in only about one hundred days. That way it can grow before the hot, dry months of July through September.
67.The underlined part “bring a good price in local markets” in the 2nd paragraph implies that lotus seeds _______.
A. can bring the local farmers more profit
B. will satisfy the needs of the local people
C. are what the local farmers eat every day
D. don’t sell very well because of their high prices
68.Vetiver grass is planted because it can _______.
A. be a valuable food source for animals             B. survive the fierce storms in summer
C. provide seeds and oil                                    D. be useful in many aspects
69.From the last paragraph we can see that the farmers in North Dakota _______.
A. are not hardworking so they are suffering from poverty                            
B. are good at taking advantage of the weather conditions
C. don’t have enough knowledge of weather and farming
D. plant more sunflowers than wheat
70.From this passage we may safely conclude that _______.
A. weather conditions are always decisive factors in agriculture
B. some crops can help farmers to fight against extreme weather
C. the species of the world are changing quickly
D. agriculture is developing fast in the world

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In the 60s, people asked about your astrological (about star) sign. In the 90s, they want to know your website.   51   Your website is an electronic meeting place for your family, friends and potentially, millions of people around the world. Best of all, you may not have to spend a cent. The web is filled with all kinds of free services and all it takes is some time and creativity.

      52   Like the table of contents of a book or magazine, the home page is the front door. Your site can have one or more pages, depending on how you design it.

    While web pages vary greatly in their design and content, most use a traditional magazine layout (版面设计). At the top of the page is a banner (横幅). Next comes a greeting and a short description of the site. Pictures, text, and links to other websites follow.

      53   Think about whom the site is for and what you want to say. Next, gather up the material that you want to put on the site.

While there are no rules you have to follow, there are a few things to keep in mind:   54  If you are too much at the beginning, you may never get the site off the ground. You can always add to your site.

    Less is better. Most people don’t like to read a lot of long text online.   55  . Smaller is better. Since it can take a long time to download large image files, keep the file sizes small.

    Have the rights. Don’t put any material on your site unless you are sure you can do it legally. Always remember to get the permission from the writer first.

Now it’s time to roll up your sleeves and start building

A. Start simply.

B. Break it into small pieces.

C. Draw a rough layout on a sheet of paper.

D. Many websites are considered very interesting.

E. These days, having a web address is almost as important as a street address.

F. Before you start building your site, do some planning.

G. Think of your home page as the starting point of your website.

 

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