题目内容
Plants are very important living things．Life could not go on if there were no plants．This is because plants can make food from air, water and sunlight．Animals and men can’t make food from air, water and sunlight．Animals get their food by eating plants and other animals．Therefore, animals and men need plants in order to live．This is the reason why we find so many plants around us.
If you look carefully at the plants around you, you will find that there are many kinds of plants．Some plants are large while others are small．Most plants are green.
Some plants have many small leaves．Others have only a few．There are many kinds of leaves．Leaves are of different shapes and colors.
Leaves are also different in other ways．Some leaves have long thin parts at the end, we call them leaf stalks, some have short leaf stalks, others even have no leaf stalks．The leaf edges are also different．Some leaves have smooth(平滑) edges．Some have a wave-shaped edges．Others have edges like the teeth of a saw(锯子).
根据短文内容，选择最佳选项。
1.Which of the following shows the right relation(关系) according to the first paragraph?
A. air—water—sunlight plants food
B. air—water—sunlight men food
C. air—water—sunlight animals food
D. air—water—sunlight living things food
2.We know from the passage that _________.
A. all leaves have leaf stal
B. all leaves have smooth edges
C. plants are different in shapes but have the same color
D. leaves are different in shapes and colors
3.The underlined words “leaf stalks” in the last paragraph means______.
A. 叶边 B. 叶纹 C. 叶柄 D. 叶尖
4.The main idea of the passage is ________.
A. how plants help men and animals
B. plants are important and they are quite different
C. plants are more important than air, water and sunlight
D. why we find so many plants and around us
开心练习课课练与单元检测系列答案A. changeable B. disaster C. responsible D. situation E. exciting |
Nowadays more and more people prefer to go fishing or hiking in the woods. Experiencing nature is ___1.___, but when you’re doing this, always keep yourself safe. It’s important to remember several basic rules if you don’t want to turn a pleasant outing into a ___2.___.
First, be fully prepared for different weather. Before you set out, always get warm clothes and raincoats ready, just in case! This is especially true in the ___3.__ of travelling in the mountain areas. The weather is really __4.__ in high mountains. Sometimes you can experience two or three seasons in one day.
A. appear B. heavily C. nearby D. pack E. probably |
Second, ___5.___ a map, a compass, and a flashlight in your bag. Even experienced travelers get lost. Before you start your trip, study the map to get familiar with the area you are going to. The flashlight is important if you do get lost. Many trips that start out in daylight will __6.___ become nighttime adventures when people can’t find their way.
Third, bring a first-aid kit and know how to use it. Small cuts can be more serious when there is no doctor ___7.___.
Finally, tell people where you are going and when you plan to come back. That way, someone will go search for you if troubles ___8.___. This will increase your chance of being found quickly.
