61～65题填空.根据汉语意思完成英语句子,每空一词

下面文章中有5处(第61～65题)需要添加小标题。请从以下选项(A、B、C、D、E和F)中选出符合各段意思的小标题。选项中有一项是多余选项。
A. Control of Respiration
B. Basic tips for preserving cut flowers
C. Role of Respiration
D. Most Important Aspect of Flower Care
E. Need for Clean Water
F. Ways of Stopping Respiration
小题1: __________
While everybody enjoys fresh cut flowers around his house, few people know how to keep them for as long as possible. This may be done by keeping in mind a few simple facts. The key to keeping fresh cut flowers for a week or more without floral preservatives (which contain biocides that kill bacteria and fungus) is to keep the water fresh and the stems free of air pockets so they can continue to draw up water.
小题2:__________
An important thing to remember about cut flowers is that they are sensitive to temperature. For example, studies have shown that cut carnations(康乃馨) retain their freshness eight times longer when kept at 12℃ than when kept at 26℃. Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.
小题3:__________
Flowers are not intended by nature to live very long. Their biological purpose is simply to attract birds or insects, such as bees, for pollination (授粉). After that, they quickly dry up and die. The process by which flowers consume oxygen and produce carbon dioxide, called respiration (呼吸), generates the energy the flower needs to give the flower its shape and color. The making of seeds also depends on this energy. While all living things respire, flowers have a high level of respiration. A result of all this respiration is heat, and for flowers the level of heat relative to the mass of the flower is very high. Respiration also brings about the eventual death of the flower. Thus the greater the level of respiration, the sooner the flower dies.
小题4: __________
How, then, to control the rate at which flowers die? By controlling respiration. How is respiration controlled? By controlling temperature. We know that respiration produces heat, but the reverse is also true. Thus by maintaining low temperatures, respiration is reduced and the cut flower will age more slowly.
小题5: __________
Another vital factor in keeping cut flowers is the quality of the water in which they are placed. Flowers find it difficult to “drink” water that is dirty or otherwise polluted. Even when water looks and smells clean, it almost certainly contains harmful substances that can endanger the flowers. To rid the water of these unwanted substances, household chlorine bleach (含氯漂白剂) can be used in small quantities. It is recommended that 15 drops of chlorine bleach (at 4% solution) be added to each liter of water. The water and solution should also be replaced each day.

下面文章中有5个段落需要添加首句（第61～65题）。请从以下选项（A、B、C、D、E和F）中选出适合各段落的首句，并在答题纸上将该选项标号涂黑。选项中有一项是多余选项。
A. It’s bonding time.
B. It’s time for family updates.
C. It can keep kids out of trouble.
D. It offers all kinds of activities.
E. It’s healthy for the whole family.
F. It’s a chance to resolve problems.
The Importance of Family Dinnertime
Over the past few years, more and more families are making great efforts to have regular family meals because it is very important.
小题1:__________________ Kids who live in families that eat dinner together regularly are less likely to be involved in risky behaviors. According to statistics, children who don’t eat dinner with their families are 61% more likely to use alcohol, tobacco or illegal drugs. By contrast, children who eat dinner with their families every night of the week are 20% less likely to drink, smoke or use illegal drugs.
小题2:__________________ Families who eat dinner together regularly are more likely to have stronger, happier family relationships. As families struggle to find amounts of quality time together, family dinnertime provides the opportunity for both. When families hang out together and communicate, they grow strong and healthy.
小题3:_________________ Families who eat dinner together regularly can keep in touch with each others’ lives. Everyone — kids and parents alike — can keep up-to-date during your family dinnertime on what is going on with school, jobs, family life and friends.
小题4:__________________ A regular family dinnertime provides natural opportunities for planning and problem solving. Scheduling family meeting times to discuss planning, needs and problem solving can be difficult. A regular family mealtime can offer a natural solution to the challenge.
小题5:__________________ Kids are likely to receive better nutrition when eating dinner regularly with their families. A simple, but true rule applies — when kids eat with their families, they eat better. A family dinnertime means kids are more likely to eat a nutritionally balanced meal, lower in sugar and fat content, than if they prepare or purchase meals on their own.