Read the text and fill in the blanks:
1, whales are actually not fish, but mammals.
There are many kinds of whales, which can be generally divided into two categories: one is baleen whales, which have no teeth. ; One is the toothed whale, which has sharp teeth.
Basic standard
First, read pinyin and write Chinese characters.
Than k ǒ n ɡ u ò l ǜ q and n ɡ west f ē n ɡ Li.
(Nose) (Filter) (Inclined) (Sharp)
I'm Sh ē n ɡ pan du b ǔ r ǔ shà n ɡ
(viviparous) (judging) (breastfeeding) (maxilla)
Second, the word group of similar words.
Paving (paving) column (copper column) filtration (filtration) smooth (smooth)
Grasp (grasp) a stick (stick) and consider (consider) the necessity (necessity)
Fetal (viviparous) belly (belly) Hunter (hunter) is short (height)
Cure (cure) the short (long) of pigs (pig heads)
Circle the wrong words in the sentence and correct them.
1, the life span of whales is very common, and one kind can live for decades to a hundred years. (It's like changing a class)
In fact, there are animals much bigger than elephants, that is whales. (Where to change)
3. The largest known whale weighs about160,000 kg. (change yourself)
4. Select one of the following categories and put the serial number in brackets.
1, a shark; B flounder; C fishing; D sturgeon. (3)
2. A composition; B prose; C. explanatory text; D poetry. (1)
3. The Great Wall of Wan Li; B thousands of choices; Zhang Wan Cliff; Dear daughter. (2)
Write the antonym of the added word.
1. The water column of baleen whales is vertical, thin and high. (vertical-parallel)
They usually find a safer place to sleep. (Safety-Danger)
3. The forelimbs and tails of whales gradually become fins, and the hind limbs completely degenerate. (Degeneration-Evolution)
When they meet big fish and marine animals, they will pounce on them fiercely, bite them with sharp teeth and eat them quickly. (sharp-dull)
6. Read the following three groups of sentences, marked "√" with the same meaning and marked "×" with different meanings.
1. Whales suck seawater into their mouths together with many small fish and shrimps. ( √ )
Whales and small fish and shrimps suck a lot of seawater into their mouths.
It is easy to finish it. ( ×)
It's easy to finish.
Xia Guang made the child's face red. ( √ )
The child's face was flushed with the sun.
Read the passage and answer the questions.
Many people have seen elephants and said they are very big animals. In fact, there are animals much bigger than elephants, and that is whales. At present, the largest known whale weighs about160,000 kg, and the smallest whale weighs 2000 kg. China found a whale weighing nearly 40,000 kilograms, about 17 meters long, with a tongue as heavy as a dozen big fat pigs. If it opens its mouth, people will stand in its mouth. If it raises its hand, it will not touch its upper jaw. Four people will sit around the table and read in its mouth, which is still very spacious.
1. Write the explanation methods used in the following sentences.
(1) The largest whale weighs about160,000 kg, and the smallest whale weighs 2000 kg. (Column data)
(2) A whale weighing nearly 40,000 kilograms was found in China, about 17 meter long, and a tongue was as heavy as a dozen big fat pigs. (List data for comparison)
(3) People standing in its mouth can't touch its upper jaw with their hands raised. (symbolically)
2. Judge whether the following statement is correct, and tick "√" for the correct statement and "×" for the wrong statement.
(1) Whales are like fish, so they belong to fish. (× )
The biggest animal is not an elephant, but a whale. ( √ )
(3) There are two kinds of whales: toothed whales and killer whales. ( ×)
(4) Baleen whales mainly eat big fish and marine animals. ( × )
Extended application
Whales I know now are: fin whales, blue whales, humpback whales, gray whales, sperm whales, narwhals and killer whales.