2. Choose the word which is stressed differently from the rest.

Choose the word which is stressed differently from the rest.

Choose the word which is stressed differently from the rest.

Choose the word which is stressed differently from the rest.

Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.

6. _______ is a branch of Natural Science, and is the study of living organisms and how they interact with their environment.

7. A / an _______ species is a population of an organism which is at risk of becoming extinct.

1. Only a few of the many species at risk of extinction actually make it to the lists and obtain legal _______.

1. Probability of extinction depends _______ both the population size and fine details of the population demography.

Many modern medicines are derived _______ plants and animals.

15,589 species (7,266 animal species and 8,323 plant species) are now considered _______ risk _______ extinction.

Internationally, 189 countries have signed _______ accord agreeing to create Biodiversity Action Plans to protect endangered and other threatened species

Known worldwide by its panda logo, World Wildlife Fund (WWF) is dedicated to protecting _______ world's wildlife and the rich biological diversity that we all need to survive

WWF is _______ leading privately supported international conservation organization in the world, and has sponsored more than 2,000 projects in 116 countries.

Many nations have laws offering protection to these species, such as forbidding hunting, restricting land development or creating _______.

Being listed as an endangered species can have negative effect since it could make a species more desirable for collectors and poachers.

World Wide Fund for Nature was formed to do the mission of the preservation of biological diversity, sustainable use of natural resources, and the reduction of pollution and wasteful consumption.

The Bali Tiger was declared extinct in 1937 due to hunting and habitat loss.

It is found that endangered species are often concentrated in areas that are poor and densely populated, such as much of Asia and Africa.

_______ is the existence of a wide variety of plant and animal species living in their natural environment.

She ___ be ill. I have just seen her playing basket ball in the school yard.

Hiking the trail to the peak _______ be dangerous if you are not well prepared for dramatic weather changes. You _______ research the route a little more before you attempt the ascent.

Peter has been working for 10 hours. He _______ be very tired now.

He is unreliable. What he says _______ be believed.

I _______ find my own way there. You _______ wait for me.

I was reading the book last night before I went to bed. I never took it out of this room. It ____ be lying around here somewhere. Where ___ it be?

When you have a small child in the house, you _______ leave small objects lying around. Such objects _______ be swallowed, causing serious injury or even death.

Frank's wallet is lying on the coffee table. He _______ it here last night.

Jenny's engagement ring was precious! It _______ have cost a fortune.

You _______ take your umbrella along with you today. It _______ rain later on this afternoon.

Species become extinct or (A) endangerment for a number of (B) reasons, but the primary cause is the (C) destruction of habitat (D) by human activities.

(A) Although species evolve differently, most of them (B) adapt to a specific habitat or environment (C) that best meets their (D) survive needs.

(A) Without the (B) particularly habitat, the species (C) could not (D) survive.

(A) Such human activities as pollution, (B) drainage of wetlands, cutting and (C) clearing of forests, urbanization, and road and dam construction (D) has destroyed or seriously damaged available habitats.

Habitat (A) fragmentation (B) have caused plant and animal (C) species in the remaining islands of habitat to lose contact (D) with others of their own kind.