Question

The Mississippi River and its tributaries form the world's fourth-longest river system. Two Canadianprovinces and all or parts of thirty-one states in the United States have rivers that drain into theMississippi. As the Mississippi River flows down to join the sea, it deposits sand, silt, and clay, buildingthe delta seaward across Louisiana's shallow continental shelf. The delta marsh and its bays, lakes, andsounds provide shelter and nutrients for North America's most fertile marine nursery.1. It can be inferred from the passage that(A) Canada has only two drainage areas in its provinces(B) there are thirty-one states in the United States(C) the thirty-one states mentioned have no other river systems to carry silt, sand, and clay (D) some of the silt deposited in the Louisiana delta is from Canada2. It is probably true that(A) the delta system formed by the Mississippi River is very important for marine life .(B) nurseries have been set up in the delta so that children can take part in aquatic sports in the bays,lakes, and sounds(C) the delta marshlands is an excellent area for medical people to study diseases caused by mosquitoesand other insects (D) the United States has established nurseries to provide shelter and food for migrating birds3. It can be inferred from the passage that(A) the delta is being destroyed by the Mississippi River's depositing sand, silt, and clay(B) the geographic features of the delta are always changing , (C) the sea movement is building a delta on the continental shelf at the mouth of the Mississippi (D) the river, delta, and sea all play an important role in building Louisiana's continental shelf

#Exani II

Answer 1

Respuesta a las preguntas del The Mississippi River.

1. The passage can be inferred that: (Opción C) The thirty-one states mentioned have no other river systems to carry silt, sand, and clay.
2. It is probably true that: (Opción A) The delta system formed by the Mississippi River is very important for marine life.
3. The passage can be inferred that: (Opción C) The sea movement is building a delta on the continental shelf at the mouth of the Mississippi.

Presente continuo.

Es un tiempo verbal en que se comunica la acción qué está haciendo el sujeto en el momento; este tiempo verbal responde a la pregunta: ¿qué estás haciendo? Las oraciones en presente continuo se construyen con la siguiente fórmula.

• Fórmula: Pronombre personal + verbo to be + verbo con -ing + complemento.