题目内容
Choose the best words and complete the passage
You may be surprised to learn how many animals actually have a memory. _______ your goldfish can show evidence (证据) of learning ability. If you have a pet fish, try this _______. Every day when you feed the fish, sprinkle (撒) the food only in the same location.
Keep a record of daily observations (观察)of the fish, taking down notes about the fish's swimming directions or behavior whenever you come to feed it. Before long, the fish should swim to the spot where you sprinkle the food whenever you approach (靠近) the tank. See how it reacts (反应) to your approaching the tank and take notes before, _______, and after your experiment.
In this example of animals' memory, we don't really know if your fish knows the fact that you are going to feed it. But it has showed its _______ ability to learn and to remember.
Bees _______ with each other in a way which shows an intelligent memory. When a bee finds a good location for gathering nectar (花蜜), it will remember _______ to get to this location from its hive (蜂巢). The bee then returns to the hive and passes along its memory by doing a complex dance to inform the others of where the food was found. It uses wings, legs, antennae (触角)and body to deliver the message. When the dance is over, other bees fly to this location to bring back food for the hive.
1.A. Ever B. Never C. Even D. Eve
2.A. experience B. experiment C. exercise D. excitement
3.A. during B. with C. to D. about
4.A. weak B. strong C. bad D. terrible
5.A. compare B. complete C. communicate D. complain
6.A. what B. where C. why D. how
维生素对人体很重要,大家了解他们吗?请仔细阅读题中的五种维生素的介绍和A至F材料说明,找出需要补充的维生素的每个人,其中有一项是多余的。
| 1.Vitamin A What can high-vitamin A foods do for you? be great for night vision help you see in color help your grow properly and aids in healthy skin ﹡ Vitamin A in carrots helps you see at night |
2.The B vitamins What can the B vitamin do for you? help make energy and set it free help make red blood cells which carry oxygen(氧气) throughout your body ﹡ The B vitamins in leafy green vegetables help your body make protein(蛋白质)and energy. | |
| 3.Vitamin C What can vitamin C do for you? keep body tissues(组织) in good shape help you heal when you get hurt help your body resist infection ﹡ Vitamin C in oranges helps your body heal if you get a cut |
4.Vitamin D What can vitamin D do for you? help keep your bones strong and healthy help keep your teeth strong and healthy help your body absorb the amount of calcium(钙) ﹡ Vitamin D in milk helps your bones and teeth. | |
| 5.Vitamin E What can vitamin E do for you? protect your skin from ultraviolet(紫外线) light protect your lungs from becoming damaged by polluted air help make red blood cells ﹡ Sunflowers seeds are the richest in Vitamin E |
A. Emily often feels tired and seems to be lack of energy.
B. Jeff spent his summer vacation on the beach and got serious sun-burnt.
C. Linda feel nervous before the new people.
D. Tony sometimes feels pains in his bones and he has loose teeth.
E. Kate has poor eyesight and she can’t see clearly at night.
F. Luke is so careless that he often gets hurt. And it takes a long time for his wound(伤口) to heal.