题目内容
To ________ your homework is to look it over to see if it is right.
A. check B. finish C. Write
The little girl cried out when she heard the loud noise.
A. in need B. in danger C. in fear D. in trouble
根据对话意思和所给首字母,写出正确的单词.
Zhalong Nature Reserve is in Heilongjiang. S 1. , the wetlands got smaller and smaller during some years. The environment was also getting worse. To save Zhalong, 5,400 people living in the main a 2. of the wetland had to move out before 2010.
Zhalong Wetland is the l 3. of its kind in China and home to lots of endangered animals and plants. Zhalong Nature Reserve is one of the seven wetlands in China that have been put onto the list of Wetlands of International Importance. People can find about 500 kinds of p 4. and 300 species(种类) of animals in the reserve. It is f 5. for the red-crowned cranes.
—I can’t follow you. Could you speak a little ___________?
A. slow B. more slowly
C. slowlier D. most slowly
Most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it’s chance in a million.
People have made a survey to colors of more than four thousand kinds of flowers and discovered that only eight of them are black.
As we know, sunlight is formed by seven colored lights. The wavelength of each light is also different, so the quantity(量) of heat in each light is also different. Flowers, especially their petals(花瓣),are easy to be harmed by high temperature.
Black flowers can take in the light of all the wavelengths that make them dry up because of high temperature, so black flowers can hardly resist(抵抗) sunlight. But red, orange and yellow flowers can protect themselves from sunlight by reflecting(反射) the red light, orange light and yellow light, each of which has a large quantity of heat.
1.It is _______ to see a black flower.
A. impossible B. two fifths
C. Very common D. chance in a million
2.The passage tells us that__________
A.black flowers are so weak that it is difficult for them to grow up
B.There are only eight black flowers in nature
C.Sunlight is formed by seven different colored lights including black
D.Black flowers can take in the light of all the wavelengths that make them dry up because of high temperature
3.Which of the following ideas is NOT true?
A. People have found that only few kinds of flowers are black.
B. Flowers are easy to be harmed by very high temperature.
C. Red, orange and yellow flowers can also absorb(吸收) the light of all wavelengths.
D. The black flowers can’t protect themselves from sunlight.
4.From the passage we know the red, orange and yellow light have________
A. Less heat than the other lights
B. More heat than the other lights
C. Very little light
D. A large quantity of heat
— A long time ago, the Indians invented and developed numbers.
—I can’t imagine the life without numbers.
A. In the future
B. Once upon a time
C. Just now
— He is a wise man. Many villagers go to ask him for advice.
—Yes. He can give good answers to many questions.
A. friendly B. clever C. lazy
My English teacher is very ______ because he always explains problems over and over again.
A. serious B. friendly
C. hard-working D. patient
There will be ________ pollution and ________ trees in the city.
A.less; more B.fewer; much
C.less; much D.fewer; more